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Thursday, May 18, 2023

Stealth aircraft

From Wikipedia, the free encyclopedia
 
F-117 Nighthawk, the first operational aircraft specifically designed around stealth technology.

Stealth aircraft are designed to avoid detection using a variety of technologies that reduce reflection/emission of radar, infrared, visible light, radio frequency (RF) spectrum, and audio, collectively known as stealth technology. The F-117 Nighthawk was the first operational aircraft specifically designed around stealth technology. Other examples of stealth aircraft include the B-2 Spirit, the B-21 Raider, the F-22 Raptor, the F-35 Lightning II, the Chengdu J-20, and the Sukhoi Su-57.

While no aircraft is totally invisible to radar, stealth aircraft make it more difficult for conventional radar to detect or track the aircraft effectively, increasing the odds of an aircraft successfully avoiding detection by enemy radar and/or avoiding being successfully targeted by radar guided weapons. Stealth is the combination of passive low observable (LO) features and active emitters such as low-probability-of-intercept radars, radios and laser designators. These are usually combined with active measures such as carefully planning all mission maneuvers in order to minimize the aircraft's radar cross-section, since common actions such as hard turns or opening bomb bay doors can more than double an otherwise stealthy aircraft's radar return. It is accomplished by using a complex design philosophy to reduce the ability of an opponent's sensors to detect, track, or attack the stealth aircraft. This philosophy also takes into account the heat, sound, and other emissions of the aircraft as these can also be used to locate it. Sensors made to reduce the impact of current low observable technologies exist or have been proposed such as IRST (infrared search and track) systems to detect even reduced heat emissions, long wavelength radars to counter stealth shaping and RAM focused on shorter wavelength radar, or radar setups with multiple emitters to counter stealth shaping. However these do so with disadvantages compared to traditional radar against non-stealthy aircraft.

Full-size stealth combat aircraft demonstrators have been flown by the United States (in 1977), Russia (in 2000) and China (in 2011). As of December 2020, the only combat-ready stealth aircraft in service are the Northrop Grumman B-2 Spirit (1997), the Lockheed Martin F-22 Raptor (2005); the Lockheed Martin F-35 Lightning II (2015); the Chengdu J-20 (2017), and the Sukhoi Su-57 (2020), with a number of other countries developing their own designs. There are also various aircraft with reduced detectability, either unintentionally or as a secondary feature.

In the 1999 NATO bombing of Yugoslavia two stealth aircraft were used by the United States, the veteran F-117 Nighthawk, and the newly introduced B-2 Spirit strategic stealth bomber. The F-117 performed its usual role of striking precision high-value targets and performed well, although one F-117 was shot down by a Serbian Isayev S-125 'Neva-M' missile brigade commanded by Colonel Zoltán Dani.

Background

World War I and World War II

The Linke-Hofmann R.I prototype, an experimental German World War I bomber covered with transparent covering material (1917–1918)

During World War I, the Germans experimented with the use of Cellon (Cellulose acetate), a transparent covering material, in an attempt to reduce the visibility of military aircraft. Single examples of the Fokker E.III Eindecker fighter monoplane, the Albatros C.I two-seat observation biplane, and the Linke-Hofmann R.I prototype heavy bomber were covered with Cellon. However, it proved ineffective, and even counterproductive, as sunlight glinting from the covering made the aircraft even more visible. The material was also found to be quickly degraded both by sunlight and in-flight temperature changes, so the attempt to make transparent aircraft was not proceeded with.

In 1916, the British modified a small SS class airship for the purpose of night-time aerial reconnaissance over German lines on the Western Front. Fitted with a silenced engine and a black gas bag, the craft was both invisible and inaudible from the ground, but several night-time flights over German-held territory produced little useful intelligence, and the idea was dropped.

Nearly three decades later, the Horten Ho 229 flying wing fighter-bomber was developed in Nazi Germany during the last years of World War II. In 1983, its designer Reimar Horten claimed that he planned to add charcoal to the adhesive layers of the plywood skin of the production model to render it invisible to radar. This claim was investigated, as the Ho 229's lack of vertical surfaces, an inherent feature of all flying wing aircraft, is also a key characteristic of all stealth aircraft. Tests were performed in 2008 by the Northrop-Grumman Corporation to establish if the aircraft's shape would have avoided detection by top-end HF-band, 20–30 MHz primary signals of Britain's Chain Home early warning radar, if the aircraft was traveling at high speed (approximately 550 mph (890 km/h)) at extremely low altitude – 50–100 feet (15–30 m). The testing did not find any evidence that charcoal was used, and confirmed that it would have been a poor absorber if used, concluding that the Ho 229 did not have stealth characteristics and was never intended to be a stealth aircraft.

Modern era

Modern stealth aircraft first became possible when Denys Overholser, a mathematician working for Lockheed Aircraft during the 1970s, adopted a mathematical model developed by Petr Ufimtsev, a Soviet scientist, to develop a computer program called Echo 1. Echo made it possible to predict the radar signature of an aircraft made with flat panels, called facets. In 1975, engineers at Lockheed Skunk Works found that an aircraft made with faceted surfaces could have a very low radar signature because the surfaces would radiate almost all of the radar energy away from the receiver. Lockheed built a proof of concept demonstrator aircraft, the Lockheed Have Blue, nicknamed "the Hopeless Diamond", a reference to the famous Hope Diamond and the design's shape and predicted instability. Because advanced computers were available to control the flight of an aircraft that was designed for stealth but aerodynamically unstable such as the Have Blue, for the first time designers realized that it might be possible to make an aircraft that was virtually invisible to radar.

Reduced radar cross section is only one of five factors the designers addressed to create a truly stealthy design such as the F-22. The F-22 has also been designed to disguise its infrared emissions to make it harder to detect by infrared homing ("heat seeking") surface-to-air or air-to-air missiles. Designers also addressed making the aircraft less visible to the naked eye, controlling radio transmissions, and noise abatement.

The first combat use of purpose-designed stealth aircraft was in December 1989 during Operation Just Cause in Panama. On 20 December 1989, two United States Air Force F-117s bombed a Panamanian Defense Force barracks in Rio Hato, Panama. In 1991, F-117s were tasked with attacking the most heavily fortified targets in Iraq in the opening phase of Operation Desert Storm and were the only jets allowed to operate inside Baghdad's city limits.

General design

The general design of a stealth aircraft is always aimed at reducing radar and thermal detection. It is the designer's top priority to satisfy the following conditions, which ultimately decide the success of the aircraft:

  • Reducing thermal emission from thrust
  • Reducing radar detection by altering some general configuration (like introducing the split rudder)
  • Reducing radar detection when the aircraft opens its weapons bay
  • Reducing infra-red and radar detection during adverse weather conditions

Limitations

B-2 Spirit stealth bomber of the U.S. Air Force

Instability of design

Early stealth aircraft were designed with a focus on minimal radar cross section (RCS) rather than aerodynamic performance. Highly stealthy aircraft like the F-117 Nighthawk are aerodynamically unstable in all three axes and require constant flight corrections from a fly-by-wire (FBW) flight system to maintain controlled flight. As for the B-2 Spirit, which was based on the development of the flying wing aircraft by Jack Northrop in 1940, this design allowed for a stable aircraft with sufficient yaw control, even without vertical surfaces such as rudders.

Aerodynamic limitations

Earlier stealth aircraft (such as the F-117 and B-2) lack afterburners, because the hot exhaust would increase their infrared footprint, and flying faster than the speed of sound would produce an obvious sonic boom, as well as surface heating of the aircraft skin, which also increases the infrared footprint. As a result, their performance in air combat maneuvering required in a dogfight would never match that of a dedicated fighter aircraft. This was unimportant in the case of these two aircraft since both were designed to be bombers. More recent design techniques allow for stealthy designs such as the F-22 without compromising aerodynamic performance. Newer stealth aircraft, like the F-22, F-35 and the Su-57, have performance characteristics that meet or exceed those of current front-line jet fighters due to advances in other technologies such as flight control systems, engines, airframe construction and materials.

Electromagnetic emissions

The high level of computerization and large amount of electronic equipment found inside stealth aircraft are often claimed to make them vulnerable to passive detection. This is highly unlikely and certainly systems such as Tamara and Kolchuga, which are often described as counter-stealth radars, are not designed to detect stray electromagnetic fields of this type. Such systems are designed to detect intentional, higher power emissions such as radar and communication signals. Stealth aircraft are deliberately operated to avoid or reduce such emissions.

Current Radar Warning Receivers look for the regular pings of energy from mechanically swept radars while fifth generation jet fighters use Low Probability of Intercept Radars with no regular repeat pattern.

Vulnerable modes of flight

Stealth aircraft are still vulnerable to detection while and immediately after using their weaponry. Since stealth payload (reduced RCS bombs and cruise missiles) is not yet generally available, and ordnance mount points create a significant radar return, stealth aircraft carry all armaments internally. As soon as weapons bay doors are opened, the plane's RCS will be multiplied and even older generation radar systems will be able to locate the stealth aircraft. While the aircraft will reacquire its stealth as soon as the bay doors are closed, a fast response defensive weapons system has a short opportunity to engage the aircraft.

This vulnerability is addressed by operating in a manner that reduces the risk and consequences of temporary acquisition. The B-2's operational altitude imposes a flight time for defensive weapons that makes it virtually impossible to engage the aircraft during its weapons deployment. New stealth aircraft designs such as the F-22 and F-35 can open their bays, release munitions and return to stealthy flight in less than a second.

Some weapons require that the weapon's guidance system acquire the target while the weapon is still attached to the aircraft. This forces relatively extended operations with the bay doors open.

Such aircraft as the F-22 Raptor and F-35 Lightning II Joint Strike Fighter can also carry additional weapons and fuel on hardpoints below their wings. When operating in this mode the planes will not be nearly as stealthy, as the hardpoints and the weapons mounted on those hardpoints will show up on radar systems. This option therefore represents a trade off between stealth or range and payload. External stores allow those aircraft to attack more targets further away, but will not allow for stealth during that mission as compared to a shorter range mission flying on just internal fuel and using only the more limited space of the internal weapon bays for armaments.

Reduced payload

In a 1994 live fire exercise near Point Mugu, California, a U.S. Air Force B-2 Spirit dropped forty-seven 500 lb (230 kg) class Mark 82 bombs, which represents about half of a B-2's total ordnance payload in Block 30 configuration

Fully stealth aircraft carry all fuel and armament internally, which limits the payload. By way of comparison, the F-117 carries only two laser- or GPS-guided bombs, while a non-stealth attack aircraft can carry several times more. This requires the deployment of additional aircraft to engage targets that would normally require a single non-stealth attack aircraft. This apparent disadvantage however is offset by the reduction in fewer supporting aircraft that are required to provide air cover, air-defense suppression and electronic counter measures, making stealth aircraft "force multipliers".

Sensitive skin

Stealth aircraft often have skins made with radiation-absorbent materials or RAMs. Some of these contain carbon black particles, while some contain tiny iron spheres. There are many materials used in RAMs, and some are classified, particularly the materials that specific aircraft use.

Cost of operations

Stealth aircraft are typically more expensive to develop and manufacture. An example is the B-2 Spirit that is many times more expensive to manufacture and support than conventional bomber aircraft. The B-2 program cost the U.S. Air Force almost $45 billion.

Countermeasures

Reflected waves

Passive (multistatic) radar, bistatic radar and especially multistatic radar systems detect some stealth aircraft better than conventional monostatic radars, since first-generation stealth technology (such as the F117) reflects energy away from the transmitter's line of sight, effectively increasing the radar cross section (RCS) in other directions, which the passive radars monitor. Such a system typically uses either low frequency broadcast TV and FM radio signals (at which frequencies controlling the aircraft's signature is more difficult).

Researchers at the University of Illinois at Urbana–Champaign with support of DARPA, have shown that it is possible to build a synthetic aperture radar image of an aircraft target using passive multistatic radar, possibly detailed enough to enable automatic target recognition.

In December 2007, SAAB researchers revealed details for a system called Associative Aperture Synthesis Radar (AASR) that would employ a large array of inexpensive and redundant transmitters and receivers that could detect targets when they directly pass between the receivers/transmitters and create a shadow. The system was originally designed to detect stealthy cruise missiles and should be just as effective against low-flying stealth aircraft. That the array could contain a large amount of inexpensive equipment could potentially offer some "protection" against attacks by expensive anti-radar (or anti-radiation) missiles.

Infrared (heat)

Some analysts claim Infra-red search and track systems (IRSTs) can be deployed against stealth aircraft, because any aircraft surface heats up due to air friction and with a two channel IRST is a CO2 (4.3 µm absorption maxima) detection possible, through difference comparing between the low and high channel. These analysts point to the resurgence in such systems in Russian designs in the 1980s, such as those fitted to the MiG-29 and Su-27. The latest version of the MiG-29, the MiG-35, is equipped with a new Optical Locator System that includes more advanced IRST capabilities. The French Rafale, the British/German/Italian/Spanish Eurofighter and the Swedish Gripen also make extensive use of IRST.

In air combat, the optronic suite allows:

  • Detection of non-afterburning targets at 45 kilometres (28 mi) range and more;
  • Identification of those targets at 8-to-10-kilometre (5.0 to 6.2 mi) range; and
  • Estimates of aerial target range at up to 15 kilometres (9.3 mi).

For ground targets, the suite allows:

  • A tank-effective detection range up to 15 kilometres (9.3 mi), and aircraft carrier detection at 60 to 80 kilometres (37 to 50 mi);
  • Identification of the tank type on the 8-to-10-kilometre (5.0 to 6.2 mi) range, and of an aircraft carrier at 40 to 60 kilometres (25 to 37 mi); and
  • Estimates of ground target range of up to 20 kilometres (12 mi).

Longer wavelength radar

VHF radar systems have wavelengths comparable to aircraft feature sizes and should exhibit scattering in the resonance region rather than the optical region, allowing most stealth aircraft to be detected. This has prompted Nizhny Novgorod Research Institute of Radio Engineering (NNIIRT) to develop VHF AESAs such as the NEBO SVU, which is capable of performing target acquisition for Surface-to-air missile batteries. Despite the advantages offered by VHF radar, their longer wavelengths result in poor resolution compared to comparably sized X band radar array. As a result, these systems must be very large before they can have the resolution for an engagement radar. An example of a ground-based VHF radar with counter-stealth capability is the P-18 radar.

The Dutch company Thales Nederland, formerly known as Holland Signaal, developed a naval phased-array radar called SMART-L, which is operated at L Band and has counter-stealth. All ships of the Royal Dutch Navy's De Zeven Provinciën class carry, among others, the SMART-L radar.

OTH radar (over-the-horizon radar)

Over-the-horizon radar is a concept increasing radar's effective range over conventional radar. The Australian JORN Jindalee Operational Radar Network can overcome certain stealth characteristics. It is claimed that the HF frequency used and the method of bouncing radar from ionosphere overcomes the stealth characteristics of the F-117A. In other words, stealth aircraft are optimized for defeating much higher-frequency radar from front-on rather than low-frequency radars from above.

Operational stealth aircraft

The F-22 Raptor, is an American fifth-generation stealth air superiority fighter

The U.S, UK, and Israel are the only countries to have used stealth aircraft in combat. These deployments include the United States invasion of Panama, the first Gulf War, the Kosovo Conflict, the War in Afghanistan, the War in Iraq and the 2011 military intervention in Libya. The first use of stealth aircraft was in the U.S. invasion of Panama, where F-117 Nighthawk stealth attack aircraft were used to drop bombs on enemy airfields and positions while evading enemy radar.

In 1990 the F-117 Nighthawk was used in the First Gulf War, where F-117s flew 1,300 sorties and scored direct hits on 1,600 high-value targets in Iraq while accumulating 6,905 flight hours. Only 2.5% of the American aircraft in Iraq were F-117s, yet they struck 40% of the strategic targets, dropping 2,000 tons of precision-guided munitions and striking their targets with an 80% success rate.

In the 1999 NATO bombing of Yugoslavia two stealth aircraft were used by the United States: the veteran F-117 Nighthawk, and the newly introduced B-2 Spirit strategic stealth bomber. The F-117 performed its usual role of striking precision high-value targets and performed well, although one F-117 was shot down by a Serbian Isayev S-125 'Neva-M' missile commanded by Colonel Zoltán Dani. The then-new B-2 Spirit was highly successful, destroying 33% of selected Serbian bombing targets in the first eight weeks of U.S. involvement in the War. During this war, B-2s flew non-stop to Kosovo from their home base in Missouri and back.

In the 2003 invasion of Iraq, F-117 Nighthawks and B-2 Spirits were used, and this was the last time the F-117 would see combat. F-117s dropped satellite-guided strike munitions on selected targets, with high success. B-2 Spirits conducted 49 sorties in the invasion, releasing 1.5 million pounds of munitions.

During the May 2011 operation to kill Osama bin Laden, one of the helicopters used to clandestinely insert U.S. troops into Pakistan crashed in the bin Laden compound. From the wreckage it was revealed this helicopter had stealth characteristics, making this the first publicly known operational use of a stealth helicopter.

Stealth aircraft were used in the 2011 military intervention in Libya, where B-2 Spirits dropped 40 bombs on a Libyan airfield with concentrated air defenses in support of the UN no-fly zone.

Stealth aircraft will continue to play a valuable role in air combat with the United States using the F-22 Raptor, B-2 Spirit, and the F-35 Lightning II to perform a variety of operations. The F-22 made its combat debut over Syria in September 2014 as part of the US-led coalition to defeat ISIS.

From February 2018, Su-57s performed the first international flight as they were spotted landing at the Russian Khmeimim Air Base in Syria. These Su-57s were deployed along with four Sukhoi Su-35 fighters, four Sukhoi Su-25s, and one Beriev A-50 AEW&C aircraft. It is believed that at least 4 Su-57 are deployed in Syria and that they have likely been armed with cruise missiles in combat.

In 2018, a report surfaced noting that Israeli F-35I stealth fighters conducted a number of missions in Syria and even infiltrated Iranian airspace without detection. In May 2018, Major General Amikam Norkin of IAF reported that Israeli Air Force F-35I stealth fighters carried out the first-ever F-35 strike in combat over Syria.

The People's Republic of China started flight testing its Chengdu J-20 stealth multirole fighter around in 2011 and made its first public appearance at Airshow China 2016. The aircraft entered service with the People's Liberation Army Air Force (PLAAF) in March 2017. Another fifth-generation stealth multirole fighter from China, the Shenyang FC-31 is also under flight testing.

Fifth-generation fighter

From Wikipedia, the free encyclopedia

Fifth-generation fighter
Raptor & Lightning (F-22A 09-191 - FF & F-35A 12-5052 - LF) (28201197585) (2).jpg
A Lockheed Martin F-35 Lightning II (top) and Lockheed Martin F-22 Raptor (bottom), two fifth-generation fighters used by the United States Air Force
Role Fighter aircraft
National origin
First flight 1990 (YF-22)
Introduction 2005 (F-22 Raptor)
Status In service
Developed from Fourth-generation fighter
Developed into Sixth-generation fighter

A fifth-generation fighter is a jet fighter aircraft classification which includes major technologies developed during the first part of the 21st century. As of 2023, these are the most advanced fighters in operation. The characteristics of a fifth-generation fighter are not universally agreed upon, and not every fifth-generation type necessarily has them all; however, they typically include stealth, low-probability-of-intercept radar (LPIR), agile airframes with supercruise performance, advanced avionics features, and highly integrated computer systems capable of networking with other elements within the battlespace for situation awareness and C3 (command, control and communications) capabilities.

As of January 2023, the combat-ready fifth-generation fighters are the Lockheed Martin F-22 Raptor, which entered service with the United States Air Force (USAF) in December 2005; the Lockheed Martin F-35 Lightning II, which entered service with the United States Marine Corps (USMC) in July 2015; the Chengdu J-20, which entered service with the People's Liberation Army Air Force (PLAAF) in September 2017; and the Sukhoi Su-57, which entered service with the Russian Air Force (VVS) on 25 December 2020. Other national and international projects are in various stages of development.

Characteristics

The emerging generation of advanced fighter aircraft in the first decades of the 21st century have come to be known as the fifth generation. The defining characteristics of such a fifth-generation fighter are not universally agreed and not every fifth-generation type necessarily has them all. Some generation counts include more than five leading up to the emerging new generation.

Whereas previous fourth-generation fighters emphasized maneuverability and close-range dogfighting, typical fifth generation characteristics include:

In order to minimize their radar cross-section (RCS), most fifth-generation fighters use chines instead of standard leading edge extensions and lack canards, though the Sukhoi T-50 has engine intake extensions that seem to function somewhat like canards, and the Chengdu J-20 designers have chosen the agility enhancements of canards in spite of their poor stealth characteristics. They all have twin canted vertical tails (similar to a V-tail) also to minimize side RCS. Most fifth-generation fighters with supermaneuverability achieve it through thrust vectoring.

They all have internal weapon bays in order to avoid high RCS weapon pylons, but they all have external hardpoints on their wings for use on non-stealthy missions, such as the external fuel tanks the F-22 carries when deploying to a new theater.

All fifth-generation fighters have a high percentage of composite materials, in order to reduce RCS and weight.

Software defined aircraft

All revealed fifth-generation fighters use commercial off-the-shelf main processors to directly control all sensors to form a consolidated view of the battlespace with both onboard and networked sensors, while previous-generation jet fighters used federated systems where each sensor or pod would present its own readings for the pilot to combine in their own mind a view of the battlespace. The F-22A was physically delivered without synthetic aperture radar (SAR) or situation awareness infra-red search and track. It will gain SAR later through software upgrades. However, any flaw in these complex software systems can disable supposedly unrelated aircraft systems, and the complexity of a software-defined aircraft can lead to a software crisis with additional costs and delays. By the end of 2013, the biggest concern with the F-35 program was software, especially the software required for data fusion across the many sensors.

Sukhoi calls their expert system for sensor fusion the artificial intelligence of the Su-57. Flight tests of their integrated modular avionics started in 2017 on a fiber optic networked multicore processor system. The system is not without faults. In December 2020, a malfunction with the computer flight control system caused the first production Su-57 to crash.

An automatic software response to an overheat condition apparently has contributed to a crash of an F-22. Issues with the avionics also contributed to an F-35A crash in 2020.

The F-35 uses software-defined radio systems, in which common middleware controls field-programmable gate arrays. Col. Arthur Tomassetti has said that the F-35 is a "software intensive airplane and software is easy to upgrade, as opposed to hardware."

In order to ease the addition of new software features, the F-35 has adopted a kernel and application separation of security responsibilities.

Steve O'Bryan of Lockheed Martin has said that the F-35 may gain the ability to operate UAVs through a future software upgrade. The USN is already planning to place its Unmanned Carrier-Launched Airborne Surveillance and Strike system under the control of a manned aircraft, to act as a flying missile magazine.

Situational awareness

The combination of stealthy airframes, stealthy sensors, and stealthy communications is designed to allow fifth-generation fighters to engage other aircraft before those targets are aware of their presence. Lt. Col. Gene McFalls of the USAF has said that sensor fusion will feed into inventory databases to precisely identify aircraft at a distance.

Sensor fusion and automatic target tracking are projected to give the fifth-generation jet fighter pilot a view of the battlespace superior to that of legacy AWACS (Airborne Warning and Control System) aircraft that may be forced back from the front lines by increasing threats. Therefore, tactical control could be shifted forwards to the pilots in the fighters. Michael Wynne, former Secretary of the United States Air Force, has suggested elimination of the Boeing E-3 Sentry and Northrop Grumman E-8 Joint STARS in favor of more F-35s, simply because so much effort is being made by the Russians and Chinese to target these platforms that are built to commercial airliner standards.

However, the more powerful sensors, such as AESA radar which is able to operate in multiple modes at the same time, may present too much information for the single pilot in the F-22, F-35 and Su-57 to adequately use. The Sukhoi/HAL FGFA offered a return to the two-seat configuration common in fourth generation strike fighters, but this was rejected over cost concerns.

There is ongoing research to apply track-before-detect across sensor fusion in the core CPU to allow fifth-generation fighters to engage targets that no single sensor has by itself detected. Probability theory is used to determine "what data to believe, when to believe and how much to believe".

These sensors produce too much data for the onboard computers to fully process so sensor fusion is achieved by comparing what is observed against preloaded threat libraries that contain known enemy capabilities for a given region. Items that do not match known threats are not even displayed.

Combat cloud

Gilmary M. Hostage III has suggested that fifth-generation jet fighters will operate together in a "combat cloud" along with future unmanned combat aircraft, and Michael Manazir has suggested that this might come as quickly as loading a UCLASS with AMRAAMs to be launched at the command of an F-35.

History

Introduction timeline
2005United States F-22A Raptor
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015United States F-35B Lightning II
2016United States F-35A Lightning II
2017China Chengdu J-20A
United States F-35I Lightning II
2018
2019United States F-35C Lightning II
2020China Chengdu J-20B
Russia Sukhoi Su-57
2021
2022
TBAChina Chengdu J-20S
China Shenyang FC-31
India HAL AMCA
Turkey TAI TF-X Kaan
Sweden Flygsystem 2020
Russia Sukhoi Su-75 Checkmate

United States

Technology Demonstrators included the YF-22 – 1990 (2 built), YF-23 – 1990 (2 built), Boeing Bird of Prey – 1996 (1 built), X-36 – 1997 (2 scale models built), X-35 – 2000 (2 built), X-32 – 2001 (1 built).

Previous-generation radar low observable (LO) aircraft, also referred to as stealth aircraft, such as the B-2 Spirit and F-117 Nighthawk were designed to be bombers or ground attack aircraft, lacking the active electronically scanned array (AESA) radars, low probability of intercept (LPI) data networks, aerial performance, and air-to-air weapons necessary to engage other aircraft. In the early 1970s, various American design projects identified stealth, speed, and maneuverability as key characteristics of a next-generation air-to-air combat aircraft. This led to the Request for Information for the Advanced Tactical Fighter project in May 1981, which resulted in the F-22.

The USMC is leveraging the USAF's experience with "fifth-generation air warfare" in the F-22, as they develop their own tactics for the F-35.

According to Lockheed Martin in 2004, the only fifth-generation jet fighter then in operational service was their own F-22 Raptor. Lockheed Martin uses "fifth-generation fighter" to describe the F-22 and F-35 fighters, with the definition including "advanced stealth", "extreme performance", "information fusion" and "advanced sustainment". For unknown reasons, their definition no longer includes supercruise capability, which has typically been associated with the more advanced modern fighters, but which the F-35 lacks. Lockheed Martin attempted to trademark the term "5th generation fighters" in association with jet aircraft and structural parts thereof, and has a trademark for a logo with the term.

The definition of the term fifth-generation fighter from Lockheed Martin has been criticized by companies whose products do not conform to these particular specifications, such as Boeing and Eurofighter, and by other commentators such as Bill Sweetman: "it is misleading to portray the F-22 and F-35 as a linear evolution in fighter design. Rather, they are a closely related pair of outliers, relying on a higher level of stealth as a key element of survivability – as the Lockheed YF-12 and Mikoyan MiG-25, in the 1960s, relied on speed and altitude."

The United States Navy and Boeing have placed the Boeing F/A-18E/F Super Hornet in a "next generation" fighter category along with the F-22 and F-35, as the Super Hornet has a "fifth-generation" AESA radar, modest radar cross-section (RCS) reductions and sensor fusion. A senior USAF pilot has complained about fifth-generation claims for the Super Hornet: "The whole point to fifth generation is the synergy of stealth, fusion and complete situational awareness. The point about fifth-generation aircraft is that they can do their mission anywhere – even in sophisticated integrated air defense [IADS] environments. If you fly into heavy IADS with a great radar and sensor fusion, but no stealth, you will have complete situational awareness of the guy that kills you." Michael "Ponch" Garcia of Raytheon has said that the addition of their AESA radars to the Super Hornet provides "90 percent of your fifth-generation capability at half the cost." And a top Boeing official has called their newest 4.5 generation fighters "stealth killers".

China

Chengdu J-20, introduced in 2017
 
Shenyang FC-31 prototype

By the late 1990s, several Chinese fifth-generation fighter programs, grouped under the program codename J-XX or XXJ, were identified by western intelligence sources. PLAAF officials have confirmed the existence of such a program, which they estimated would enter service between 2017 and 2019. By late 2010, two prototypes of the Chengdu J-20 had been constructed and were undergoing high-speed taxi trials. The J-20 made its first flight on 11 January 2011. On 26 December 2015, a new J-20 with serial number 2101 was seen leaving its Chengdu Aviation Corporation factory. It is believed to be the first of the low rate initial production (LRIP) aircraft. 2101 conducted its maiden flight on 18 January 2016.

The J-20 officially entered service in September 2017 and the PLAAF began inducting J-20s into combat units in February 2018.

Another stealth fighter design from SAC started to circulate on the internet in September 2011. In June 2012, photos about a possible prototype of F-60 being transferred on highway began to emerge on the internet. This aircraft was named Shenyang FC-31 later, and made its maiden flight on 31 October 2012.

Russia

A static prototype of the Sukhoi Su-75 Checkmate at the MAKS Airshow 2021

Technology demonstrators included the Mikoyan Project 1.44 – 1998 (1 built) and Su-47 – 1997 (1 built).

In the late 1980s, the Soviet Union outlined the need for a next-generation aircraft to replace its fourth-generation jet fighters, the Mikoyan MiG-29 and Sukhoi Su-27, in front line service. To meet the characteristics for the next-generation aircraft, work was underway on two aircraft projects: the twin-engined delta canard Sukhoi Su-47 with forward-swept wings and the Mikoyan Project 1.44. However, due to the dissolution of the Soviet Union and lack of funds, both remained only as technology demonstrators.

After 2000, the Russian Defence Ministry initiated a new fighter competition known as "PAK FA" (Russian: ПАК ФА, short for: Перспективный авиационный комплекс фронтовой авиации, romanizedPerspektivny Aviatsionny Kompleks Frontovoy Aviatsii, lit.''Prospective aeronautical complex of front-line air forces'') to develop a next-generation fighter for the Russian Air Force, with Sukhoi and MiG as the main competitors. Sukhoi came up with its heavier, two-engine T-50 proposal (now Sukhoi Su-57) while Mikoyan proposed a light, single-engine Mikoyan LMFS design, based on the former MiG-1.44 project. Sukhoi won the competition and in 2002, it was selected to lead the development of Russia's next-generation fighter based on the T-50 design. Later development of the multirole Mikoyan LMFS were continued from MiG funding. However Mikoyan LMFS program was also cancelled and replaced by similar Sukhoi Checkmate program.

Russia's first fifth-generation aircraft, the Sukhoi Su-57, will replace its aging MiG-29s and Su-27s. The Su-57 first flew on 29 January 2010. The first production Su-57 was delivered to the Russian Air Force on 25 December 2020.

The Mikoyan PAK DP is another proposed fifth-generation fighter, being developed to replace the MiG-31. The project began in 2010, and "According to Russian news reports, the MiG-41 will be equipped with stealth technology, reach a speed of Mach 4–4.3, carry anti-satellite missiles, and be able to perform tasks in Arctic and near-space environments."

Russia unveiled a prototype of the single-engine Sukhoi Su-75 Checkmate Light Tactical Aircraft in July 2021 at the biennial MAKS (air show), with maiden flight initially expected in 2023 (subsequently delayed to at least 2024). The fighter is mainly designed for export and is expected to be less costly than 2-engine competitors.

India

India is independently developing a twin-engine fifth-generation supermaneuverable stealth multirole fighter, called the HAL Advanced Medium Combat Aircraft (AMCA). It is being developed and designed by the Aeronautical Development Agency and will be manufactured by a SPV with initial prototypes produced by Hindustan Aeronautics Limited. As of 2022, the AMCA prototype is under construction, with a first flight of the prototype expected by 2025.

In early 2018, India pulled out of the parallel project called FGFA, a fifth-generation derivative of the Sukhoi Su-57, which it alleged did not meet requirements for stealth, combat avionics, radars and sensors by that time. The completed FGFA was to include 43 improvements over the Su-57, including stealth, supercruise, advanced sensors, networking and combat avionics.

However many analysts have questioned the feasibility of India's ability to independently develop a fifth generation fighter aircraft as India lacks the industrial base and technical capabilities to do so, particularly a lack of research and design expertise. India also lacks a robust military industrial base to manufacture the aircraft in large numbers.

Turkey

Mock-up of the TAI TFX at the 2019 Teknofest

TAI TF-X is a Turkish fifth-generation fighter program. In 2011 Türk Havacılık ve Uzay Sanayii AŞ (Turkish Aerospace Industries or TAI) initiated a $20 million concept design phase for a fifth-generation fighter, TAI TF-X. During a State visit of the President of Turkey to Sweden on 13 March 2013, TAI signed an agreement with Sweden's Saab AB to provide design support services to Turkey for the TAI TFX program. TAI has stated that the program will cost $120 billion (with engine development).

TAI CEO Temel Kotil stated that the TF-X will be unveiled by March 23, 2023 and make its first flight by 2025. The fighter jet is expected to enter service in 2029.

Sweden

Saab's Flygsystem 2020 is a program to develop a fifth generation fighter.

Japan

Japan developed a prototype of a stealth jet fighter called the Mitsubishi X-2 Shinshin, previously referred to as the ATD-X. At the beginning of the twenty-first century, Japan, seeking to replace its aging fleet of fighter aircraft, began making overtures to the United States on the topic of purchasing F-22 fighters for their own forces. However the U.S. Congress had banned the exporting of the aircraft in order to safeguard secrets of the aircraft's technology such as its extensive use of stealth; this rejection necessitated Japan's development of its own modern fighter, to be equipped with stealth features and other advanced systems.

A mock-up of the X-2 Shinshin was constructed and used to study the radar cross section in France in 2009. The first prototype rolled out in July 2014 and the aircraft made its first flight on 22 April 2016. By July 2018, Japan had gleaned sufficient information, and decided that it would need to bring on international partners to complete this project. Several companies have responded.

Japan has signed a contract with Mitsubishi Heavy Industries to develop a sixth-generation fighter called Mitsubishi F-X.

Wednesday, May 17, 2023

Science diplomacy

From Wikipedia, the free encyclopedia

Science diplomacy is the use of scientific collaborations among nations to address common problems and to build constructive international partnerships. Science diplomacy is a form of new diplomacy and has become an umbrella term to describe a number of formal or informal technical, research-based, academic or engineering exchanges, within the general field of international relations and the emerging field of global policy making.

Although diplomacy featuring science is ancient, science diplomacy began to formally emerge in the 1930s, and the term science diplomacy appeared shortly after the end of the Cold War. Science diplomacy is taken to involve the direct promotion of a country's national needs, and/or the direct promotion of cross-border interests, and/or the direct meeting of global challenges and needs, including via the United Nations system and relevant conferences. Its remit thus includes the global networked governance of such major global issues as development of renewable energy, management of climate change, fusion power, space exploration, and technology transfer.

Notable developments in science diplomacy may arise as the result of scientific conferences and can feature the creation of new organizations to promote science diplomacy. Examples include the 1931 founding of the International Council of Scientific Unions, now the International Council of Science (ICSU); CERN, founded in 1954; the International Space Station, which had its origin in the early 1980s; and the ITER nuclear fusion experiment, conceived of around the same time. In more recent years, science diplomacy has been applied to pandemics and to the new age space race, in the form of space diplomacy.

Background

Science diplomacy, along with e.g. economic, digital or para-diplomacy, is a subcategory of the so-called new diplomacy, as opposed to the long-standing traditional diplomacy known to date. Science diplomacy is thus also a sub-field of international relations and typically involves at some level interactions between scholars and officials involved in diplomacy, although whether scientist diplomats or diplomat scientists are more effective is an open question.

That said, forms of science diplomacy originated in previous centuries. The great voyages of exploration and colonization brought with them science-based diplomacy – such as trade in rifles in North America – as a form of diplomacy of influence. The emergence of blocs during the era of industrial warfare also saw the deployment of technology as a means of influencing less developed countries, with the Cold War bringing ideologically bloc-based science diplomacy, in areas such as space exploration and the development of fission reactors and weapons, to its ultimate incarnation.

The term ‘science diplomacy’ only began to emerge following the end of the Cold War, in the early 2000s, as a description of the need for new strategic partnerships at the country level to promote “activities of international cooperation and compromise on issues with a heavy scientific input”, on issues of global concern, such as biosafety. This involved the development of strategic scientific relations between historical or potential rival countries or blocs as a way to promote scientific cooperation to the extent that it could hedge against diplomatic failures and reduce the potential for conflict. As one UNCTAD researcher stated, “These activities and resulting networks offer excellent opportunities to share resources and hedge against diplomatic failures through exchanging experiences, opening countries up to better funding opportunities from international sources and sharing organisational capacity and expertise.” In the second half of the first decade of the twenty-first century, calls for the promotion of science diplomacy emerged in earnest, especially between the West and former Soviet Union countries.

Definition

The concept of science diplomacy in academic discourse is of relatively recent origin. The intensification of research, including attempts to define and classify practices that can be included in the science diplomacy category, date from the beginning of the 21st century. The attempts to conceptualise science diplomacy are still ongoing. There exists neither a clear-cut definition of the term nor a consensus on science diplomacy's stakeholders, instruments and activities. Science diplomacy as a discourse draws the attention of multiple social actors who present diverse interpretations of the concept. The debate is attended by researchers who treat science diplomacy as an empirical object and by actors who are or have been involved in science diplomacy practices in various ways. These are career diplomats, science counsellors/advisers, experts to national and international decision-making bodies, and politicians. They perceive science diplomacy through the lens of interests (national, group) and goals to be fulfilled. Therefore, the definition of science diplomacy is not based on analytical categories but draws its meaning from a compilation of different narratives, approaches and ideas of changing relations between science and politics, science and foreign policy and the evolution of diplomacy as an institution of international relations.

Types of activities

In January 2010, the Royal Society and the American Association for the Advancement of Science noted that "science diplomacy" refers to three main types of activities:

  • “Science in diplomacy”: Science can provide advice to inform and support foreign policy objectives
  • “Diplomacy for science”: Diplomacy can facilitate international scientific cooperation
  • "Science for diplomacy”: Scientific cooperation can improve international relations

In 2017, the current and former science advisers to the Foreign Ministers of the United States, New Zealand, the UK and Japan framed science diplomacy as

  • Actions designed to directly advance a country's national needs
  • Actions designed to address cross-border interests
  • Actions primarily designed to meet global needs and challenges 

Before the term science diplomacy was coined, such initiatives—-in the United States—were often called “smart power” or “soft power” by those in the field. The term, “soft power,” was coined by Joseph Nye of Harvard University in a 1990 book, Bound to Lead: The Changing Nature of American Power. In an editorial in the Washington Post that he cowrote with Richard Armitage, he said, "In a changing world, the United States should become a smarter power by once again investing in the global good -- by providing things that people and governments want but cannot attain without U.S. leadership. By complementing U.S. military and economic strength with greater investments in soft power, Washington can build the framework to tackle tough global challenges." His notion of "smart power" became popular with the term's use by members of the Clinton and Obama Administrations, although the Obama Administration also used the term science diplomacy.

Bridging the world through science

United Nations Educational, Scientific and Cultural Organisation

Science as a tool for diplomacy has been used for several decades and by many countries around the world. Science diplomacy can be seen as a form of networked and transnational governance, involving human collaboration, especially via United Nations bodies such as UNESCO. In particular, it suggests a means for helping manage paradigmatic and disruptive change. For instance, the sheer scale of the problem of climate change has caused researchers to call for the reinvention of science communication in order to address humanity's cognitive limits in coping with such a crisis, with the International Panel on Climate Change alone constituting a science-diplomacy nexus. Especially within the context of the Sustainable Development Goals, the first calls to begin seeing science and its products as global public goods which should be tasked to fundamentally improve the human condition, especially in countries which are facing catastrophic change, are being made. Science diplomacy challenges the way international relations operates as a field of human endeavor, presenting a ‘boundary problem’ involving actors from different social worlds.

There are numerous basic patterns via which scientific and technological advances influence international relations. These include:

  1. as a juggernaut or escaped genie with rapid and wide-ranging ramifications for the international system;
  2. as a game-changer and a conveyor of advantage and disadvantage to different actors in the international system;
  3. as a source of risks, issues and problems that must be addressed and managed by the international community;
  4. as key dimensions or enablers of international macro phenomena;
  5. as instruments of foreign policy or sources of technical information for the management of an ongoing international regime;
  6. as the subject of projects and institutions whose planning, design, implementation and management provide grist for the mill of international relations and diplomacy.

While both science and technology create new risks in and of themselves, they can also alert humanity of risks, such as global warming, in both cases transforming commerce, diplomacy, intelligence, investment, and war.

One of the earliest ventures in joint scientific cooperation was in 1931 with the creation of the International Council of Scientific Unions, now the International Council of Science (ICSU). Through partnerships with international science unions and national science members, the ICSU focuses resources and tools towards the further development of scientific solutions to the world's challenges such as climate change, sustainable development, polar research, and the universality of science.

Small-scale model of ITER

The civilian scientific exchanges between the United States and the then Soviet Union throughout the Cold War provide another example of science diplomacy. These collaborations linked the two countries when official diplomatic connections were stalled. Today, the U.S. and Russia work together on the International Space Station and on the ITER nuclear fusion science experiment.

Another example is European Organization for Nuclear Research (CERN). Following a series of meetings, UNESCO hearings and a formal ratification by 12 member nations—Belgium, Denmark, France, the Federal Republic of Germany, Greece, Italy, the Netherlands, Norway, Sweden, Switzerland, the United Kingdom and Yugoslavia— CERN was created. At present, CERN is run by 20 European member states, but many non-European countries are also involved in different ways. Scientists from some 608 institutes and universities around the world use CERN's facilities.

Individuals who are not connected with the government have also practiced science diplomacy. For example, in 1957, American philanthropist Cyrus Eaton hosted a meeting of 22 scientists (seven from the United States, three each from the Soviet Union and Japan, two each from the United Kingdom and Canada, and one each from Australia, Austria, China, France, and Poland) in the village of Pugwash, Nova Scotia, Canada. The stimulus for the gathering was a Manifesto issued on 9 July1955 by Bertrand Russell and Albert Einstein—and signed by Max Born, Percy Bridgman, Leopold Infeld, Frédéric Joliot-Curie, Herman Muller, Linus Pauling, Cecil Powell, Joseph Rotblat and Hideki Yukawa—which called upon scientists of all political persuasions to assemble to discuss the threat posed to civilization by the advent of thermonuclear weapons. The meetings eventually grew and gathered the attention of high level government officials. Since then, scientists have continued to gather at the Pugwash Conferences.

In 1967, the African Scientific Institute was created to help African scientists reach others through published materials, conferences, seminars and provide tools for those who lack them. And in 1996, countries with interests in the Arctic came together to form the Arctic Council to discuss sustainable development and environmental protection.

In the beginning of the new century, the term "science diplomacy" gained popularity during the Obama administration, and academics called for a 'new era' of science diplomacy. In 2009, President Barack Obama called for partnership during his “A New Beginning” speech in Cairo, Egypt. These partnerships would include a greater focus on engagement of the Muslim world through science, technology, and innovation building and connecting scientists from the United States to scientists in Muslim-majority countries.

By the 2010s, the early emphasis on biosafety and plant genetic resources had given way to a longer list of specific risks for science diplomacy to address, including “the rising risks and dangers of climate change, a spread of infectious diseases, increasing energy costs, migration movements, and cultural clashes”. Additional areas of interest include space exploration; the exploration of fundamental physics (e.g., CERN and ITER); the management of the polar regions; health research; the oil and mining sectors; fisheries; and international security, including global cybersecurity, as well as enormous geographic areas, such as the transatlantic and Indo-Pacific regions. Increasingly, science diplomacy has come to be seen as a multilateral endeavor to address both global challenges and the matter of global goods, via science internationals (such as the Malta Conferences); international NGOs, especially UN bodies; and various science-policy interfaces, such as the U.S. National Academies system.

Several U.S. Government agencies, including the White House  the State Department, and USAID have science and technology offices and advisors to aid with developing and creating S&T outreach policy. These advisors are regular speakers (e.g., J. Holdren, E.W. Colglazier, A. Dehgan, in 2010 and 2011) at meetings of the Science Diplomats Club of Washington, to strengthen links with foreign "science diplomats". E.W Colglazier and Alex Dehgan have also contributed to Science & Diplomacy.

Additionally, several non-profit organizations in the United States have continued science diplomacy practices in their work. CRDF Global, in partnership with the U.S. Department of State, launched the Global Innovation through Science and Technology (GIST) initiative in 2010 in Egypt with follow-up meetings in Malaysia and Morocco in 2011. In addition to the GIST Initiative, CRDF Global has been active in both the United States and in the Middle East on promoting science diplomacy through conferences, panel discussions and programs including the Iraqi Virtual Science Library, Maghreb Virtual Science Library, and the Afghanistan Virtual Science Library.

The American Association for the Advancement of Science (AAAS) established the Center for Science Diplomacy whose goal is to use science and scientific cooperation to promote international understanding. “It approaches this goal by providing a forum for scientists, policy analysts, and policy-makers through whom they can share information and explore collaborative opportunities”. In March 2012, the center launched the quarterly publication Science & Diplomacy Additionally, CRDF Global, the Partnership for a Secure America and AAAS have worked together on science diplomacy initiatives and events. Others, such as the Science and Development Network (SciDev.Net) have dedicated an entire portion of their website for science diplomacy related articles, events and op-ed pieces.

The European Union is also concerned with science diplomacy. Science collaboration is seen as a way to make diplomacy through "parallel means". Several EU-funded projects are currently exploring and conducting research on the topic of science diplomacy.

Implementing science diplomacy

American stamp of 1955 in allusion to the program Atoms for Peace

The first major post-War science-based diplomatic initiative was the Baruch Plan, which sought to internationalize fission under the newly formed United Nations Atomic Energy Commission and stop an atomic arms race. When this failed, the Cold War resulted, and America developed a separate fission energy diplomatic program, the 'Atoms for Peace' initiative.

John F. Kennedy established a science and technology cooperation agreement with Japan in 1961 following appeals to repair the “broken dialogue” between the two countries’ intellectual communities after World War II. That agreement helped round out a tenuous relationship at the time rooted only in security concerns.

In the 1970s, Henry Kissinger requested, and took, several science initiatives to his talks with China. These initiatives focused on areas in which both countries could participate; as evidenced in the Shanghai Communiqués. In 1979, when official diplomatic ties were established between China and the U.S., science played a big role in the shaping of renewed efforts, and December 2010 marked the 30th anniversary of normalized relations between the United States and China.

The late 1980s saw the development of the International Thermonuclear Experimental Reactor (ITER), an international nuclear fusion research and engineering megaproject, which will be the world's largest magnetic confinement plasma physics experiment when it begins plasma operations in 2025. ITER began in 1985 as a Reagan–Gorbachev initiative with the equal participation of the Soviet Union, the European Atomic Energy Community, the United States, and Japan through the 1988–1998 initial design phases. Preparations for the first Gorbachev-Reagan Summit showed that there were no tangible agreements in the works for the summit. One energy research project, however, was being considered quietly by two physicists, Alvin Trivelpiece and Evgeny Velikhov. The project involved collaboration on the next phase of magnetic fusion research — the construction of a demonstration model. At the time, magnetic fusion research was ongoing in Japan, Europe, the Soviet Union and the US. Velikhov and Trivelpiece believed that taking the next step in fusion research would be beyond the budget of any of the key nations and that collaboration would be useful internationally.

A major bureaucratic fight erupted in the US government over the project. One argument against collaboration was that the Soviets would use it to steal US technology and know-how. A second was symbolic — the Soviet physicist Andrei Sakharov was in internal exile and the US was pushing the Soviet Union on its human rights record. The United States National Security Council convened a meeting under the direction of William Flynn Martin that resulted in a consensus that the US should go forward with the project, which will continue into the 2030s and 2040s.

In the years following the end of the Cold War, U.S. Congressman George E. Brown Jr. was an outspoken champion of science and technology issues, particularly in international relations. As Chairman of the House Science Committee, Rep. Brown promoted conservation and renewable energy sources, technology transfer, sustainable development, environmental degradation, and an agency devoted to civilian technology when there were few listeners, and even fewer converts. Consistent with his long-held conviction that the nation needed a coherent technology policy, Brown articulated his concept of a partnership between the public and private sectors to improve the nation's competitiveness. His concern for demonstrating the practical applications of advances in science and technology laid the foundation for what became the U.S. Civilian Research & Development Foundation, later CRDF Global—a private non-profit organization initially established to promote bilateral science and technology collaborations between the U.S. and newly independent states of the former Soviet Union. Brown also helped establish the White House Office of Science and Technology Policy, the Environmental Protection Agency, the (now defunct) Office of Technology Assessment and the first federal climate change research program in the Federal Climate Program Act of 1978.

On March 12, 2010, Congressman Howard Berman (D-CA) and Congressman Jeff Fortenberry (R-NE) introduced the Global Science Program for Security, Competitiveness, and Diplomacy Act, which proposed an increase in the application of science and scientific engagement in America's foreign policy.

Additionally, several non-profit organizations in the United States have continued science diplomacy practices in their work. CRDF Global, in partnership with the U.S. Department of State, launched the Global Innovation through Science and Technology (GIST) initiative in 2010 in Egypt with follow-up meetings in Malaysia and Morocco in 2011. In addition to the GIST Initiative, CRDF Global has been active in both the United States and in the Middle East on promoting science diplomacy through conferences, panel discussions and programs including the Iraqi Virtual Science Library, Maghreb Virtual Science Library, and the Afghanistan Virtual Science Library.

The American Association for the Advancement of Science (AAAS) established the Center for Science Diplomacy whose goal is to use science and scientific cooperation to promote international understanding. “It approaches this goal by providing a forum for scientists, policy analysts, and policy-makers through whom they can share information and explore collaborative opportunities”. In March 2012, the center launched the quarterly publication Science & Diplomacy  Additionally, CRDF Global, the Partnership for a Secure America and AAAS have worked together on science diplomacy initiatives and events. Others, such as the Science and Development Network (SciDev.Net) have dedicated an entire portion of their website for science diplomacy related articles, events and op-ed pieces.

The Malta Conferences Foundation seeks to provide a bridge to peace in the Middle East through science diplomacy. Starting in 2001, Dr. Zafra Lerman began working with the American Chemical Society Subcommittee on Scientific Freedom and Human Rights to develop a scientific conference that would bring together researchers from many different, often mutually hostile, nations in the Middle East so they could cooperatively work toward solving problems facing the region. With support from the American Chemical Society (ACS), International Union of Pure and Applied Chemistry (IUPAC), the Royal Society of Chemistry (RSC - England), and the Gesellschaft Deutscher Chemiker, the first conference was held on the island of Malta from December 6 to 11, 2003. Attendees included six Nobel Laureates and scientists from 15 Middle Eastern Countries (Bahrain, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Libya, Palestinian Authority, Qatar, Saudi Arabia, Syria, Turkey, and United Arab Emirates). The conference included five workshops to foster cross-border collaborations:

  • Nanotechnology and material science
  • Medicinal chemistry and natural products
  • Alternative energy
  • Science education for all levels
  • Environment - Air and water quality

The organizers followed up by hosting a second meeting two years later, Malta II. The meeting was honored by United States Senator Dick Durbin in a speech on the floor of the U.S. Senate entitled "Chemists Working Cooperatively".

Lerman led the initiative to continue with the conferences and founded the Malta Conferences Foundation to support them. She secured the support of UNESCO, the United Nations Educational, Scientific, and Cultural Organization.

List of Malta Conferences

2003 Malta I Malta
2005 Malta II Malta
2007 Malta III Istanbul, Turkey
2009 Malta IV Amman, Jordan
2011 Malta V Paris, France
2013 Malta VI Malta
2015 Malta VII Rabat, Morocco
2017 Malta VIII Malta
2019 Malta IX Malta
2022 Malta X Malta

The American Association for the Advancement of Science awarded Zafra Lerman the 2014 Award for Science Diplomacy.

In Spain, in December 2018, a group of stakeholders and experts on science diplomacy from around the world coming together at a global conference in Madrid defined several principles and highlighted the benefits of science diplomacy. As a result, the “Madrid Declaration on Science Diplomacy” was signed by a group of high-level experts who contributed to the conference. It proclaims a common vision of science diplomacy in the future, emphasises the benefits science diplomacy can bring to tackling the global challenges of our time and outlines the principles needed to foster science diplomacy worldwide.

Importance of science diplomacy

In a speech at the 2008 Davos World Economic Forum, Microsoft Chairman Bill Gates, called for a new form of capitalism, that goes beyond traditional philanthropy and government aid. Citing examples ranging from the development of software for people who cannot read to developing vaccines at a price that Africans can afford, Gates noted that such projects “...provide a hint of what we can accomplish if people who are experts on needs in the developing world meet with scientists who understand what the breakthroughs are, whether it's in software or drugs.” He suggested that we need to develop a new business model that would allow a combination of the motivation to help humanity and the profit motive to drive development. He called it “creative capitalism,” capitalism leavened by a pinch of idealism and altruistic desire to better the lot of others.

Scientists and engineers have an important role to play in creating what New York Times columnist Tom Friedman calls a “flat world,” a world of economic opportunity made equal through electronic communication technologies.

UK Foreign Secretary David Miliband said, during the 2010 InterAcademy Panel of the British Royal Society, “The scientific world is fast becoming interdisciplinary, but the biggest interdisciplinary leap needed is to connect the worlds of science and politics.”

CEO of the American Association for the Advancement of Science Rush D. Holt, Jr. wrote, in his article, “Scientific Drivers for Diplomacy,” published in Science & Diplomacy: “Beyond providing knowledge and applications to benefit human welfare, scientific cooperation is a useful part of diplomacy—scientific cooperation to work on problems across borders and without boundaries, cooperation made possible by the international language and methodology of science, cooperation in examining evidence that allows scientists to get beyond ideologies and form relationships that allow diplomats to defuse politically explosive situations.” Holt was the U.S. representative for New Jersey's 12th congressional district from 1999 to 2015, and has a PhD in physics from New York University.

Many of the global challenges related to health, economic growth, and climate change lay at the intersection of science and international relations.

Science diplomacy and pandemics

Global organizations, researchers, public health officials, countries, government officials, and clinicians have worked together to create effective measures of infection control and subsequent treatment. They continue to do so through sharing of resources, research data, ideas, and by putting into effect laws and regulations that can further advance scientific research. Without the collaborative efforts of such entities, the world would not have the vaccines and treatments we now possess for diseases that were once considered deadly such as tuberculosis, tetanus, polio, influenza, etc. Historically, science diplomacy has proved successful in diseases such as SARS, Ebola, Zika and continues to be relevant during the COVID-19 pandemic today.

Science diplomacy and space

With the rise of privatized space exploration and the growing competition with nations across the globe in the new age space race, space diplomacy refers to a globalized effort by scientists, national officials, and private corporations to reach a consensus on what is safe, effective, and sustainable space travel. In addition to possible space jurisdictions to each country interested in space travel, science diplomacy and space, or space diplomacy, can involve considerations towards environmental pollution or a set of international laws and legislations, such as the Outer Space Treaty. 

Science diplomacy and branding

Instead of showcasing military power in international relations, public relations have become the core of public diplomacy. With the fragile and complex political realities among nations, through leveraging global challenges, e.g., climate change, terrorism, and recent pandemics, public diplomacy becomes a strategic trigger to position a nation or tackle some critical challenges. As such, branding, seen as a creative tool used by policymakers towards individual projects, national policy sectors, or nation-states, can be used as a tool for science diplomacy. Three layers of branding have been identified: place branding, policy branding, and policy tool branding. Place branding is often used in policy-making, as is the case of countries like Singapore, Taiwan, and the United Arab Emirates, which use education policies to attract foreign universities and position their countries as science-oriented. Also, public health policy during pandemics uses policy branding, especially for social campaigns. Despite the paucity of research on how branding can aid science diplomacy, it can be part of the equation to advance science diplomacy.

Science diplomacy and vaccine/drug distribution

During epidemics and pandemics, vaccines and drugs are an effective method for reducing incidence and mortality from diseases. Underdeveloped countries often face obstacles that hinder timely development and deployment of vaccines during times of crises, including structural barriers (which make transport more difficult) and monetary barriers. As a result, it is important for these nations to collaborate with international institutions to develop and distribute treatments that can mitigate the effects of the outbreak. In the past, institutions including large pharmaceutical corporations have donated vaccine doses to underdeveloped countries, and charitable organizations have funded trials to test the efficacy of the vaccine . These collaborations are exemplified in various nations’ responses to the malaria, rotavirus, HIV/Aids, HPV, and COVID-19 outbreaks.

Science diplomacy and water scarcity in the U.S

The Scope of the Problem

With increasing changes to the earth’s climate and population comes issues surrounding water scarcity. These include both the amount of water that is available and the quality of that water. The topic of water scarcity is one most often associated with developing countries, overlooking critical issues that can also be found in first world countries. Most recently, the U.S. has seen many environmental issues which have exacerbated the clean water crisis in several states. The most recent incident being in February with the derailment of a train in Ohio that led to the release of toxic chemicals into the environment. This however is not the only incident which has affected water in the U.S., as past incidents such as the flood in Jackson Mississippi have also greatly impact the availability of water. Both the incident of September 2022 in Jackson, and the led water crisis in Flint have been due to old water treatment infrastructure greatly impacting communities which are majority black . Despite this access to potable water is not the only issue as many states especially those in the west of the U.S. have seen droughts leaving many without running water. It’s observed that more than 50% of the U.S. has experienced drought conditions in recent years and this problem will only worsen as it is estimated that 40 out of 50 states will experience water shortages in the next 10 years.

The Causes of Water Scarcity in The US

Water scarcity in the United States is a complicated problem with multiple causes that are contributing to it including water infrastructure, climate change, transboundary water challenges, and many more. In many areas of the US, aging water infrastructure is a significant problem that causes leaks, water losses, and decreased availability of water. This is due to the complexity of the infrastructure with its thousands of miles of pipes and aqueducts that deliver water to our homes, businesses and farms across America. However, many of these structures are aging and in need of repairs and replacements. The American Society of Civil Engineers (ASCE) gave the US drinking water infrastructure a grade of "C-" in its 2021 Report Card for America's Infrastructure, indicating that much of the country's drinking water infrastructure is in poor condition and in need of significant investment. Many of these water systems were constructed decades ago, and it is now necessary to repair and replace them. But due to the funding shortages, the upgradation of these repairs have been delayed drastically resulting in water shortages in many parts of the country. Another cause of the water shortage is the issue discussed everyday, climate change. Climate changes affect the precipitation patterns , increase temperatures and change the timing and intensity of the storms. The change of precipitation patterns have led to more frequent and severe droughts in some regions and more intense rain causing flooding and erosion in other areas of the country. The increase of temperatures are leading to snowpacks and glaciers melting faster than normal. This has become an issue as to how it is used in the role of storage and supplying water throughout the region. High temperatures also lead to increased evaporation which is another source of water loss. Another issue that is a cause of water scarcity is the transboundary challenges. Water resources have been shared across political boundaries such as rivers, lakes and any other form of groundwater. In the US, there are several transboundary water challenges, including the Colorado River, which flows through seven US states and Mexico, and the Great Lakes, which are shared by the US and Canada. An issue that arises from this is the allocation of water resources which can bring a significant source of conflict, as different stakeholders may have competing demands for the same water. For example, farmers may need water for irrigation, while cities may need water for drinking and sanitation. The water quality can be impacted by pollution of one state and contaminate it for everyone else. This has led to disputes over responsibility and liability for water quality problems. In conclusion, understanding and addressing the root causes of water scarcity, including issues related to infrastructure, climate change, and transboundary water challenges, requires a collaborative and interdisciplinary approach that includes science diplomacy.

The Consequences of Water Scarcity in the US

Solutions to Water Scarcity

Desalination is one technology that is being used to solve water scarcity around the world. Israel is a leader in this field. Israel currently has five operation desalination plants. The oldest, the Ashelkon Plant (which began operation in 2005) can produce up to 120 million cubic meters of potable water in one year. The Palmachim plant (which began operation in 2007) can produce up to 100 million cubic meters of potable water in a year. The Hadera plant (which began operation in 2009) can produce up to 127 million cubic meters of potable water in a year. The Sorek plant (which began operation in 2013) can produce up to 150 million cubic meters of potable water in a year. The Sorek plant (which began operation in 2015) can produce up to 100 million cubic meters of potable water in a year. Combined, all of these operational plants contribute to around 60% of Israel’s potable water supply. Two additional plants are planned which will produce 300 million cubic meters of water a year between the two of them. Once these plants are online, desalination will make up 90% of Israel’s potable water supply. In response to the growing urgency of the water crisis in California, lawmakers have greenlit a project to introduce desalination plants to support California’s water supply.

Israel’s desalination infrastructure is so extensive that they are now producing a surplus of water. The country is using the surplus to refill previous reservoirs of freshwater such as the Sea of Gailee. The surplus also opens up avenues of water diplomacy. In 2021, Israel and the Kingdom of Jordan signed a deal where Israel would provide 200 million cubic meters of desalinated water to Jordan per year–this would account for 20% of Jordan’s freshwater needs. In exchange, Jordan would provide clean solar energy to Israel. This relationship is just the latest in a long history of water diplomacy between the nations. The State of Utah in the United States has also been in talks with Israel to learn how the small nation has taken control of its water scarcity issue. Some topics discussed during the meeting between a delegation of Utah lawmakers and Israeli representatives like Yehezkel Lifshitz (Director General for the Israeli Water Authority), included drip irrigation and vertical gardens. Drip irrigation, as opposed to sprinkler irrigation, has helped Israel save 50% more water in its agricultural sector than when sprinkler irrigation was the predominant form of irrigation in the country. Water conservation efforts are especially important for American States facing water scarcity issues due to legal issues of water rights which limit their access to the water that the Colorado River provides. Localities such as Las Vegas have begun to limit outdoor swimming pool sizes in an effort to save water. California has emergency rules in place to save water by limiting the watering of lawns.

A major issue of using desalination to solve water scarcity is the energy cost of desalination. While great strides have been made in the energy efficiency of desalination technology, much of the desalination effort still uses fossil fuels, such as the Ashelkon Plant which is gas fired. The emission of greenhouse gasses to solve the water scarcity problem only exacerbates the issue since global warming is a major cause of new water scarcity issues around the world. Novel technologies such as small-medium scale solar powered desalination systems are being developed in Israel to supply farming operations and hotels with potable water. The new solar powered desalination systems use up to 90% less energy than conventional desalination systems.

The water scarcity issues around the world largely revolve around lack of access to fresh water; water is still extremely abundant in the world. Desalination is a method of turning unusable saltwater into potable water. In a sense, it is transporting water from areas of high availability into low availability. Aqueduct systems do the same. In the American West, water scarcity largely revolves around a drought which is drying up the Colorado River, the primary source of freshwater for a number of Western States. However, in the American Northwest, there is an abundance of water. Methods to transport that water to the water scare American Southwest can help alleviate water stress in the region. Similar projects have been undertaken multiple times in the American Northeast. During the 19th century, the Croton river in Upstate New York was diverted via the New Croton Dam. During the 20th century, more projects were undertaken to continue to divert water from areas of high-availability and low need to New York City where the availability of clean water in the area could not meet the demand. The Catskill Aqueduct System, which began construction in 1907, built over 160 miles of aqueducts. Following the completion of the Catskill Aqueduct System, city planners looked for other sources of water to supply the city in preparation for future increases in demand. The city planners identified the Delaware Aqueduct System which built around 115 miles of aqueducts to transport water from the Delaware River to New York City. A similar project was developed during the 1960s called The North American Water and Power Alliance (NAWAPA). NAWAPA would divert water from rivers in the Pacific Northwest to the American Southwest as well as connect the water sources to the Great Lakes in the Midwest. However, due to the grand scale of the project, it ultimately failed to come to fruition.

The Role of Science and Technology

As an intrinsic human need, water and its accessibility remains a universal concern that accentuates the vital importance of having a reliable and safe supply for its myriad of uses so much hygienic as agricultural. The implications of overcoming such a task are only feasible through the use of novel and innovative technologies in conjunction with interdisciplinary collaboration which could provide the science and resources necessary to combat water scarcity with water treatment and management solutions. Technological   headways in nanofiltration, oxidation-reduction, and reverse osmosis use state-of-the art filtering membranes in high pressurized systems to remove contaminants as small as .005 um, thus reusing existing water sources to regenerate purified water. The Western States Water Council (WSWC) have negotiated federal, state, financial, ecological and technological constraints on water reuse with release of the EPA’s National Water Reuse Action Plan (WRAP) in 2020 as a collaborative effort in sustainability, security, and resilience of resources. 

In addition, rainwater harvesting in conjunction with cloud seeding has been receiving more attention for the western United States where acute drought stricken regions are desperate for any uptick in precipitations. Releasing silver iodide particles into atmospheric storm or rain clouds generates supercooled water crystals around them which sparks a chain reaction of water crystallization, condensation, and precipitation. On a broader front, groundwater treatment and desalination provide large scale options to harness alternative sources of fresh water to increase the mere 4% that constitutes earth’s total water volume, 68% of which is frozen and a further 30% being underground. Major points of water contentions deal with decreased rainfall, increased dryness and drought, exploitation of river, aquifer, and lake resources, all of which contribute to diminishing reservoirs of freshwater. Desalination of ocean and brackish groundwater as a means of water replenishing have seen headway in California’s San Joaquin Valley, a region heavily associated with extreme droughts, diminishing water supplies, and increased sinking from worn water tables. While these methods have their drawbacks in terms of cost and traction, the role of science and technology cannot be understated in its indispensability to apply sensible and productive approaches on a national macroscale in real time. 

In order to achieve this level of scientific and technological collaboration, multidisciplinary coalitions are vital to address the various hurdles in treatment and management with pragmatic solutions aimed at different aspects of the problem. Stakeholders in water water management solutions include both federal and state governments and legislation involved in interstate and regional river agreement compacts. Tribal groups, watershed groups, international bodies and water treaties, as well as climate activities and research institutions to name a few. Interdisciplinary studies in law and policy making, geophysics, engineering, hydrology, meteorology and weather patterning, economics, and ecosystem/climate science play crucial roles in development of integrated water plans and conservation measures which extend to remote sensing, modeling, and regulatory action of water resources. 

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