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Sunday, May 5, 2019

Bigelow Aerospace

From Wikipedia, the free encyclopedia

Private
IndustryAerospace
Founded1999
FounderRobert Bigelow (Founder and President)
Headquarters ,
United States
Key people
Robert Bigelow, Blair Bigelow
ProductsOrbital facilities, commercial space stations
Number of employees
150 (Dec 2018)
Websitebigelowaerospace.com

Bigelow Aerospace is an American space technology startup company based in North Las Vegas, Nevada, that manufactures and develops expandable space station modules. Bigelow Aerospace was founded by Robert Bigelow in 1998 and is funded in large part by the profit Bigelow gained through his ownership of the hotel chain, Budget Suites of America.

By 2013, Bigelow had invested US$250 million in the company. Bigelow has stated on multiple occasions that he is prepared to fund Bigelow Aerospace with about US$500 million through 2015 in order to achieve launch of full-scale hardware.

Bigelow Aerospace has stated they intend to create a modular set of space habitats for creating or expanding space stations.

History

NASA's design for the now-canceled TransHab module
 
Bigelow originally licensed the multi-layer, expandable space module technology from NASA in 2000 after Congress canceled the International Space Station (ISS) TransHab project following delays and budget constraints in the late 1990s.

Bigelow has three Space Act agreements whereby Bigelow Aerospace is the sole commercializer of several of NASA's key expandable module technologies.

Bigelow continued to develop the technology for a decade, redesigning the module fabric layers—including adding proprietary extensions of Vectran shield fabric, "a double-strength variant of Kevlar"—and developing a family of uncrewed and crewed expandable spacecraft in a variety of sizes. Bigelow invested US$75 million in proprietary extensions to the NASA technology by mid-2006, and $180 million into the technology by 2010.

By 2010, Robert Bigelow had invested US$180 million in the company, which by 2013 had grown to US$250 million of his personal fortune. Bigelow stated on multiple occasions that he was prepared to fund Bigelow Aerospace with up to about US$500 million through 2015 in order to achieve launch of full-scale hardware.

In early 2010, NASA came full circle to once again investigate "making inflatable space-station modules to make roomier, lighter, cheaper-to-launch spacecraft" by announcing plans in its budget proposal released February 22, 2010. NASA considered connecting a Bigelow expandable craft to the ISS for safety, life support, radiation shielding, thermal control and communications verification testing for the next three years," and in December 2012, signed a $17.8 million contract with Bigelow to develop the Bigelow Expandable Activity Module (BEAM), then projected to fly in 2015. The module was berthed to the International Space Station on April 16, 2016, and was inflated on May 28, 2016. As of April, 2019 it remains at the station. 

Since early on, Bigelow has been intent on "pursuing markets for a variety of users including biotech and pharmaceutical companies and university research, entertainment applications and government military and civil users." The business model includes "'leasing out' small space stations or habitats made of one or more B330 inflatable modules to different research communities or corporations.". Despite these broad plans for space commercialization, the space tourism destination and space hotel monikers were frequently used by many media outlets following the 2006/2007 launches of Genesis I and Genesis II. Robert Bigelow has been explicit that he is aiming to do business in space in a new way, with "low cost and rapid turnaround, contrary to traditional NASA ISS and Space Shuttle operations and bureaucracy."

In October 2010, Bigelow announced that it had agreements with six sovereign nations to utilize on-orbit facilities of the commercial space station: United Kingdom, Netherlands, Australia, Singapore, Japan and Sweden. In February 2011, Dubai of the United Arab Emirates became the seventh nation to have signed on. In 2011, Bigelow employed an in-house team of model makers, coming from the film and architecture industries, to make detailed models of their space habitats and space stations. Scale models were sent to "potential customers, including governments and corporations, as a reminder of the possibilities."

Reportedly due to delays in launch capability to transport humans to low Earth orbit, Bigelow dramatically reduced staff in late September 2011, because crew transportation would become available "years after the first B330 could be ready", laying off 40 of their 90 employees.

In late March 2012 Bigelow began increasing staff levels once again. By April 2013, Bigelow was saying that they would have B330 modules ready to go to space by the time that commercial passenger spacecraft were available to ferry their customers to the dual-BA330 Alpha space station—expected in 2017—and that Bigelow was ready to enter into contracts with customers.

Further staff reductions occurred at the start of 2016, estimated by industry sources to be between 30 and 50 people of 150 employed at the time of the layoffs. This came after the company advertised more than 100 jobs in 2015 at both its North Las Vegas headquarters and its newly established propulsion department in Huntsville, Alabama. As part of its reduction in workforce, the company closed the Huntsville facility.

In February 2018, the company announced the formation of a new subsidiary, Bigelow Space Operations, to handle operational aspects of marketing and operating space stations in low Earth orbit.

Module design and business plans

A full-scale mockup of Bigelow Aerospace's Space Station Alpha inside their facility in Nevada.

Expandable module design overview

NASA Deputy Administrator Lori Garver views the inside of a full-scale mockup of Bigelow Aerospace's Space Station Alpha.
 
Bigelow Aerospace anticipates that its inflatable modules will be more durable than rigid modules. This is partially due to the company's use of several layers of vectran, a material twice as strong as kevlar, and also because, in theory, flexible walls should be able to sustain micrometeoroid impacts better than rigid walls. In ground-based testing, micrometeoroids capable of puncturing standard ISS module materials penetrated only about halfway through the Bigelow skin. Operations director Mike Gold commented that Bigelow modules also wouldn't suffer from the same local shattering problems likely with metallic modules. 

This could provide as much as 24 hours to remedy punctures in comparison to the more serious results of standard ISS skin micrometeoroid damage.

Expected uses for Bigelow Aerospace's expandable modules include microgravity research and development and space manufacturing. Other potential uses include variable-gravity research—for gravity gradients above microgravity including moon (0.16 g) and Mars (0.38 g) gravity research; space tourism—such as modules for orbital hotels; and space transportation—such as components in spaceships for Moon or Mars manned missions.

Business plans

As of October 2015 the Bigelow Aerospace website shows several pricing schemes including $51.25 million for 60 days on a B330 space station. That price covers everything including transport, training, and consumables. For $25 million Bigelow Aerospace customers can lease a third of a B330 habitat, roughly 110 cubic meters, for a period of 60 days.

In 2010, Bigelow proposed conceptual designs for expandable habitats that would be substantially larger than the B330, previously its largest at 330 cubic meters (11,700 cu ft) habitat volume. Contingent on NASA going forward with a super heavy lifter, the proposed concept would include "expandable habitats offering 2,100 cubic meters [74,000 cu ft] of volume — nearly twice the capacity available on the International Space Station", and another providing 3,240 cubic meters (114,400 cu ft).

In 2010, Bigelow Aerospace began building a large production facility in North Las Vegas, Nevada to produce the space modules. The 181,000 square feet (16,800 m2) facility will include three production lines for three distinct spacecraft, doubling the amount of floor space at Bigelow, and transitioning the focus from research and development, with an existing workforce of 115, to production. Bigelow expected to hire approximately 1,200 new employees to staff the plant, with production commencing in early 2012.

In 2013, during execution of the contract to build the Bigelow Expandable Activity Module for the International Space Station, Robert Bigelow indicated that his company manufactures about 50 percent of product content in-house, while subcontracting out the remainder.

In March 2013, Bigelow signed an agreement with NASA to act as "the central link between NASA and dozens of private companies that want to play a role in the creation of a new economy – a space economy, including proposals far more complex than mere space tourism: research, manufacturing, medicine and agriculture. The agreement calls for Bigelow to liaise between NASA and the private sector to see how [the U.S.] government and industry could help each other."

The first deliverable on that contract, a "report which identifies companies that want to be a part of this effort, as well as potential customers", was delivered by Bigelow to NASA in May 2013.

Module construction and deployment timeline

On July 12, 2006, and June 28, 2007, Bigelow launched the Genesis I and II modules, respectively. In mid-2008, Bigelow Aerospace completed the Galaxy module but did not launch it due to rising launch costs and the ability to substantially validate the new Galaxy technologies terrestrially, particularly after the successful two Genesis launches in 2006 and 2007. It was tested on the ground at its North Las Vegas facility instead. 

As of 2014 Bigelow had reserved a 2015 launch on SpaceX's Falcon 9 rocket, but did not announce the payload. The Falcon 9 would have been capable of launching a Sundancer module, but not a B330 module. Bigelow also talked with Lockheed Martin regarding potential launches on the Atlas V-401 rocket. No launch took place in 2015, although in April 2016 Bigelow Aerospace remained on SpaceX's list of future launch customers.

On April 8, 2016 the SpaceX CRS-8 mission launched BEAM to the ISS; on April 11, 2016, Bigelow and United Launch Alliance announced that an Atlas V-552 rocket had been booked for a flight in 2020 to deliver a B330 habitat to low-Earth orbit.

Note: Dates of upcoming launches are proposed and are subject to change. Cancelled projects are in italics. 

Module Type Module Names Volume Flight Date Launch Vehicle Status
Genesis Pathfinder Genesis I 11.5 m3 (410 cu ft) July 12, 2006, 14:53 UTC Dnepr Launch successful, on orbit
Genesis Pathfinder Genesis II 11.5 m3 (410 cu ft) June 28, 2007, 15:02 UTC Dnepr Launch successful, on orbit
Galaxy Galaxy 16.7 m3 (590 cu ft) Cancelled N/A Launch cancelled, tests on ground
Sundancer Unknown 180 m3 (6,400 cu ft) Cancelled Unknown Launch cancelled, replaced by B330
BEAM Bigelow Expandable Activity Module (BEAM) 16 m3 (565 cu ft) April 8, 2016, 20:43 UTC SpaceX Dragon Built under a $17.8 million NASA contract.
B330 Nautilus 330 m3 (11,700 cu ft) 2020 Unknown In design; mockup built by 2015; public goal was to have two completed and ready to launch by the end of 2017
BA 2100 Olympus 2,100 m3 (74,200 cu ft) Unknown Unknown Proposed, Mockup built by 2015 though too large for any rocket currently flying

Expandable habitat modules

Genesis I

Genesis I, the first Bigelow Aerospace module to be placed into orbit
 
On July 12, 2006, Genesis I launched on a Dnepr booster from Dombarovskiy Cosmodrome in Orenburg Oblast, Russia. The launch was conducted by Bigelow and ISC Kosmotras. Despite ground-side difficulties during launch, the spacecraft performed as expected upon reaching orbit, inflating, deploying solar arrays and starting internal systems. The mission is planned to last for five years and include extensive observation of the craft's performance including testing packing/deployment procedures and resistance to radiation and space debris, among other space hazards and conditions. Mike Gold, corporate counsel for Bigelow Aerospace, stated in relation to this mission and the next, "Our motto at Bigelow Aerospace is 'fly early and often'. Regardless of the results of Genesis 1, we will launch a follow-up mission rapidly." As of July 2015, the vehicle remains in orbit.

Genesis II

On June 28, 2007, Genesis II launched on another Dnepr (a converted SS-18 ICBM) from Dombarovskiy Cosmodrome in Orenburg Oblast, Russia. Launched at 8:02 a.m. PDT Genesis II was inserted into orbit at 8:16 a.m. PDT at an inclination of 64 degrees.

Although Genesis I and Genesis II are identical in size and similar in appearance there are several notable differences. Firstly, Genesis I contains 13 video cameras whereas Genesis II contains 22. Secondly, Genesis II includes a suite of additional sensors and avionics that are not present in Genesis I. 

The orbital life is estimated to be 12 years, with a gradually decaying orbit resulting in re-entry into Earth's atmosphere and burn-up expected. As of July 2015, the vehicle remains in orbit.
Fly your stuff program
Bigelow Aerospace ran a Fly Your Stuff program for the Genesis II launch. The cost to launch pictures or small items was around US$300. Bigelow photographed each item with internal cameras as the items floated inside the craft, displaying them on the company website. 

The first image of the interior of Genesis II appeared on the company's website on June 29, 2007. Some of the pictures and other items placed aboard Genesis II as part of the Fly Your Stuff program are clearly visible. Another interior image, apparently taken with more of the spacecraft's internal lights activated, was posted on July 2, 2007. Articles from the Fly Your Stuff program are also visible in this image. 

Test items, supplied by Bigelow Aerospace employees, were sent into orbit on Genesis I. No new images of items floating inside Genesis I have been released since shortly after the launch and initial activation of the spacecraft due to problems with a computer which controls several of the internal cameras.

Sundancer

The third planned Bigelow launch, Sundancer, was to be equipped with full life support systems, attitude control, orbital maneuvering systems, and would have been capable of reboost and deorbit burns. Like the Genesis pathfinders, Sundancer the outer surface would have been compacted around its central core, with air expanding it to its full size after entering orbit. After expansion, the module would have measured 8.7 metres (29 ft) in length and 6.3 metres (21 ft) in diameter, with 180 cubic metres (6,400 cu ft) of interior volume. Unlike previous Bigelow craft, it was planned to have three observation windows. As of September 2009, SpaceX had been contracted to provide a Falcon 9 vehicle for launch of a Bigelow payload in 2011.

In July 2011, Bigelow announced that they will cease development on the Sundancer and instead focus their efforts on the B330.

Bigelow Expandable Activity Module for the ISS

Full-scale mock-up of an expanded BEAM (January 16, 2013)
 
In December 2012, Bigelow began development work on the Bigelow Expandable Activity Module (BEAM) under a $17.8 million NASA contract. After a number of delays, BEAM was transported to ISS arriving on April 10, 2016, inside the unpressurized cargo trunk of a SpaceX Dragon during the SpaceX CRS-8 cargo mission. The mission tested the BEAM module's structural integrity, leak rate, radiation dosage and temperature changes over a two-year-long mission. At the end of BEAM's mission, the module was planned to be removed from the ISS and burn up during reentry. In October 2017, it was announced that the module would stay attached to the ISS for at least three more years, with options for two further one-year extensions.

B330

The B330 is a full-scale production module weighing approximately 50,000 pounds (23,000 kg), with dimensions of approximately 45 feet (14 m) in length and 22 ft (6.7 m) in diameter when expanded. Previous names for the B330 were the BA 330 and the Nautilus. 

Bigelow has partnered with United Launch Alliance with the goal of launching a B330 module to orbit in 2020, potentially as an addition to the International Space Station. The two companies have also proposed launching a B330 to low lunar orbit in 2022 to serve as a lunar depot. The first B330 launch was originally planned to be launched aboard an Atlas V rocket, but ULA stated in October 2017 that its in-development Vulcan rocket was the only launch vehicle available with the performance and fairing capacity to carry the module.

BA 2100 concept module

The BA 2100, or Olympus module, is a concept module that would require a heavy-lift launcher and would place in orbit the complete infrastructure of a 2,100-cubic-meter (74,000 cu ft) habitat, over six times as large as the B330. As of October 2010, initial estimates put the vehicle mass between 70-90 tonnes, with a diameter of approximately 41 feet (12 m). The concept model shows docking ports at both ends.

Delays in launch capability

As a result of delays in launch capability to transport humans to the Bigelow habitats, Bigelow "laid off some 40 of its 90 employees" in late September 2011. Bigelow had expected human launch capability by 2014 or 2015 but "the prospect of domestic crew transportation of any kind is apparently going to occur years after the first B330 could be ready. ... For both business and technical reasons, we cannot deploy a B330 without a means of transporting crew to and from our station, and the adjustment to our employment levels was necessary to reflect this reality."

Bigelow Commercial Space Station

The Bigelow Next-Generation Commercial Space Station is a private orbital space complex currently under development by Bigelow. The space station will include both Sundancer and B330 expandable spacecraft modules and a central docking node, propulsion, solar arrays, and attached crew capsules. Initial launch of space station components was planned for 2014, with portions of the station available for leased use as early as 2015. Bigelow has publicly shown space station design configurations with up to nine B330 modules containing 100,000 cu ft (2,800 m3) of habitable space. Bigelow began to publicly refer to the initial configuration — two Sundancer modules and one B330 module — of the first Bigelow station as "Space Complex Alpha" in October 2010.

A second orbital station, Space Complex Bravo, was scheduled to begin launches in 2016.

Launches will not commence until there are commercial crew transportation systems operational, which will be 2017 or later.

Bigelow announced in October 2010 that it has agreements with six sovereign nations to utilize on-orbit facilities of the commercial space station: United Kingdom, Netherlands, Australia, Singapore, Japan and Sweden. By February 2011, this number had risen to seven.

An earlier space station, CSS Skywalker (Commercial Space Station Skywalker), was Bigelow's 2005 concept for the first space hotel. The Skywalker was to be composed of multiple Nautilus habitat modules, which would be expanded and connected upon reaching orbit. An MDPM (Multi-Directional Propulsion Module) would allow the Skywalker to be moved into interplanetary or lunar trajectories.

In November 2010, Bigelow indicated that the company would like to construct ten or more space stations and that there is a substantial commercial market to support such growth.

Crew and passenger transport

Bigelow's business model requires a means of transporting humans to and from low Earth orbit. In 2004 Bigelow established and funded a US$50 million prize, America's Space Prize, to stimulate development of manned vehicles. The prize expired without a winner in early 2010. 

In August 2009, Bigelow Aerospace announced the development of the Orion Lite spacecraft, intended to be a lower cost, and less capable version of the Orion spacecraft under development by NASA. The intention would be for Orion Lite to provide access to low earth orbit using either the Atlas 5 or Falcon 9 launch systems, and carrying a crew of up to 7.

At the time Bigelow Aerospace's corporate counsel Mike Gold said: "...we would be foolish to depend completely on one capsule provider or any single launch system", ... "Therefore, it is vital from both a practical and business perspective to ensure that SpaceX and Dragon aren't the only options available to us, hence the need for another capsule."

As of 2010, Bigelow was pursuing both launch options of Boeing CST-100 / ULA Atlas V and SpaceX Dragon / Falcon 9 as capsules and launchers. "Bigelow offers Boeing, SpaceX, and other vehicle developers ... the promise of a sustained, large market for space transportation services." With the initial Space Complex Alpha space station, Bigelow "would need six flights a year; with the launch of a second, larger station, that number would grow to 24, or two a month."

Bigelow entered NASA's Commercial Crew Development (CCDev) program with the CST-100 capsule in collaboration with Boeing. Bigelow worked with Boeing to refine requirements for the CST-100, including joint tests in August 2012. Separately, In May 2012, Bigelow and SpaceX teamed up towards joint marketing to international customers of crew transport to the Bigelow B330 space facility.

Aspirations beyond Earth-orbit

In February 2010, following the announcement of NASA's post-Augustine Commission plans to reorient human-to-orbit plans more in the direction of commercial launch providers, Robert Bigelow said "We as a company have lunar ambitions. ... and we also have Mars ambitions as well." In April 2010, Bigelow suggested positioning a space station at Lagrangian point L1. He also said his proposed private Moon Base would consist of three B330s.

In March 2013, Bigelow signed a contract with NASA to "look at ways for private ventures to contribute to human exploration missions, perhaps including construction of a moon base" and to act as a clearinghouse with other commercial companies to extend commercial activity at conceptual lunar expeditionary bases in ways that are not a mainline part of NASA's current focus for human spaceflight, which is asteroid exploration missions. The Bigelow report released later in 2013 identified "an uncertain regulatory environment as a major obstacle to commercial activities" on the moon.

In December 2014, the FAA Office of Commercial Space Transportation (AST) completed a review of the proposed Bigelow lunar habitat, and indicated that "it was willing to use its authority to ensure Bigelow could carry out its [lunar] activities ... without interference from other [US] companies licensed by the FAA" [and that the FAA would] use its launch licensing authority, as best it can, to protect private sector assets on the Moon and to provide a safe environment for companies to conduct peaceful commercial activities without fear of harmful interference from other AST licensees."

Honors

Bigelow Aerospace has received several honors for its spaceflight efforts. On October 3, 2006, Bigelow Aerospace received the Innovator Award from the Arthur C. Clarke Foundation. The award recognizes "initiatives or new inventions that have had recent impact on or hold particular promise for satellite communications and society, and stand as distinguished examples of innovative thinking." Robert Bigelow was presented the award at the Arthur C. Clarke Awards in Washington D.C. alongside Walter Cronkite, who was honored on the same night with the Arthur C. Clarke Lifetime Achievement Award.

On January 26, 2007, the Space Foundation announced that Bigelow Aerospace would be the recipient of its 2007 Space Achievement Award. Bigelow Aerospace joins a list of previous winners that include the Titan Launch Vehicle team; The Inertial Upper Stage team, the SpaceShipOne team; the Arianespace-CNES Ariane 4 launch team; the Evolved Expendable Launch Vehicle (EELV) teams; the NASA/Industry Galileo space probe team; the Hubble Space Telescope team; Sea Launch; and the NASA/Boeing International Space Station team. The award was presented to Robert Bigelow on April 9, 2007 at the 23rd National Space Symposium in Colorado Springs, Colorado.

Bigelow Commercial Space Station

From Wikipedia, the free encyclopedia

The Bigelow Next-Generation Commercial Space Station is a private orbital space station currently under development by Bigelow Aerospace. Previous concepts of the space station had included multiple modules such as two B330 expandable spacecraft modules as well as a central docking node, propulsion, solar arrays, and attached crew capsules. However it now appears that each B330 can operate as an independent space station. Attaching a B330 to the International Space Station or flying a B330 alone have been suggested by Robert Bigelow.

On 8 April 2016, NASA launched a Bigelow inflatable module and attached it to the ISS, where it has been tested for over two years. Any independent Bigelow Commercial space station will have to await the development of commercially available human rated orbital spacecraft. The first of these is expected to be the SpaceX Dragon 2 in 2019. Two B330 are expected to be ready by 2020 and a launch contract for one in 2021 followed by move to low lunar orbit in 2022 has been signed.

History

Early work at Bigelow Aerospace on expandable space habitats, with plans to eventually assemble them into on-orbit space stations, began in the early years after the company was formed in 1999. By 2004, plans made public included assembly of multiple modules "into a manned space facility in low Earth orbit for both privately- and publicly-funded research and for space tourism."

Two more formal concepts have since been made public. By 2005, Bigelow space station plans had been further conceptualized into Commercial Space Station Skywalker, or CSS Skywalker. In mid-2010, Bigelow announced their Next-Generation Commercial Space Station—later named "Space Complex Alpha".

The initial dates for the Alpha complex were not achieved. In January 2013, the Alpha complex was specified to be an in-space assemblage of only two B330 modules, with the first module to be launched no earlier than 2016.

CSS Skywalker

CSS Skywalker
Station statistics
Crew5–7
Mass100,000 kg (220,000 lb)
Height30.0 m (98.4 ft)
Diameter6.7 m (22 ft)
Pressurised volume1,500 m3 (53,000 cu ft)

The CSS Skywalker (Commercial Space Station Skywalker) was a 2005 concept for the first "space hotel" by Bigelow Aerospace. The Skywalker was designed to be composed of multiple Nautilus (B330) habitat modules, which would be inflated and connected upon reaching orbit. An MDPM (Multi-Directional Propulsion Module) would allow the Skywalker to be moved into interplanetary or lunar trajectories.

In short, CSS Skywalker was "an effort to build the planet's first orbiting space hotel, [with a projected] room rate of USD$1 million per night", and a hoped-for launch date for the first Nautilus module of 2010.

Company challenges

Early assessments of the probability of success of the technology development and challenges of a commercial space station pointed to the importance of factors largely beyond Bigelow's control. For example, in 2005, John M. Logsdon, director of George Washington University's Space Policy Institute said "I have little doubt that the basic technology is likely to work ... The issue is whether there's a transportation system that can get people or things, or both, up there."

In practice, orbital launch plans were significantly delayed. First, after the Space Shuttle Columbia disaster in 2003, Bigelow had to compete with NASA for rides on the Russian Soyuz three-person rocket — "a distinctly untenable position." In mid-2009, Bigelow announced they were continuing to develop a variety of space habitat architectures.

Space transport

In 2008, Bigelow initially began talks with Lockheed Martin to potentially contract launch services on its Atlas V-401 vehicle for both crew and cargo launches.

By mid-2010, Bigelow was actively pursuing launch options for its space station modules and crew capsules from two launch systems: the Boeing CST-100 capsule on a ULA Atlas V launcher and also the SpaceX Dragon / Falcon 9 capsule/launcher combination. "Bigelow offers Boeing, SpaceX, and other vehicle developers ... the promise of a sustained, large market for space transportation services." With the initial Space Complex Alpha, Bigelow "would need six flights a year; with the launch of a second, larger station, that number would grow to 24, or two a month." After 2010, no further concrete plans have been announced for transport with Atlas V launch vehicles. 

In May 2012, almost simultaneously with the successful mission of SpaceX's Dragon capsule, launched by SpaceX's Falcon 9 vehicle, to the International Space Station, Bigelow and SpaceX jointly announced that they were teaming to offer private crewed missions to space, promoting the Bigelow space station and SpaceX transport systems.

In 2014, plans called for transport of humans and resupply cargo to the station to be via a SpaceX Dragon V2, with a round-trip seat priced at US$26.5 million. Lease of the on-orbit stations was priced at US$25 million to rent one-third of a B330 module for 60 days. The B330 modules and any of several tugs were planned for launch aboard a Falcon Heavy launch vehicle.

Space Complex Alpha

Space Complex Alpha
Bigelow Commercial Space Station.jpg
Station statistics
CrewUp to 12
Pressurised volume690 m3 (24,000 cu ft)

A full-scale mockup of Bigelow Aerospace's Space Station Alpha inside their Nevada facility.
 
The Bigelow Next-Generation Commercial Space Station was announced in mid-2010. The initial configuration for the 2014/2015 space assembly was two Sundancer modules and one B330 module, named Space Complex Alpha after October 2010.

Bigelow began to publicly refer to the initial configuration—two Sundancer modules and one B330 module— of the first Bigelow station as Space Complex Alpha in October 2010. If the entire station is leased out, it could mean up to 25 launches per year for crew and cargo. In early 2013, Bigelow Aerospace started referring to Alpha as consisting of two B330 modules instead of two Sundancer and one B330.

In October 2010, Bigelow announced that it has agreements with six sovereign nations to utilize the on-orbit facilities of the commercial space station: United Kingdom, Netherlands, Australia, Singapore, Japan and Sweden. A seventh country signed on in February 2011: the United Arab Emirate of Dubai.

In August 2015, Michael Gold stated that the timetable for the first B330 deployment is uncertain at the moment, since it is tied to the development of private astronaut taxis that can get people to orbit. With this projected to be 2017 or later Bigelow expects to be "ready when they are".

In April 2016, the two B330s attached together was also questioned by suggesting that the first B330 might ideally be attached to the International Space Station or that each B330 could operate on its own. The first liftoff was targeted for 2020.

Orbital complex construction

In 2010, Bigelow Aerospace began building a large production facility in North Las Vegas, Nevada to produce the space modules. The 16,800 m2 (181,000 sq ft) facility will include three production lines for three distinct spacecraft, doubling the amount of floor space at Bigelow and transitioning the focus from research and development to production. Bigelow expects to hire approximately 1200 new employees to staff the plant, with production commencing in early 2012. Construction would require three medium lift launches and one heavy lift launch. In October 2011 Reuters reported that Bigelow had, "pared its 115-member workforce to 51 [...] because of delays developing space taxis needed to fly people to the outposts."

As of 2010, on-orbit assembly of the Bigelow Next-Generation Commercial Space Station components was projected to begin in 2014. As of July 2010, construction of the orbital complex was projected to occur in seven principal steps, based on an operations concept that included the on-orbit addition of two Sundancer modules and one B330 module.
  • Unit 1: Sundancer-one module, with a pressurized volume of 180 cubic meters (m3), (unoccupied)
  • Unit 2: Commercial crew capsule arrives with Bigelow Aerospace astronauts to set up Sundancer-one and carry additional supplies
  • Unit 3: Supplemental power bus and docking node
  • Unit 4: Sundancer-two
  • Unit 5: Second commercial crew capsule brings additional crew and supplies, and provides a redundant method for crew return to Earth.
  • Unit 6: B330, larger-volume module (330 m3)
  • Unit 7: Third commercial crew capsule brings additional supplies and provides a double-redundant, robust solution for astronaut re-entry.

Commercial leasing

In January 2013, Bigelow announced that they would sell naming rights to the dual-B330-module Alpha complex for US$25 million per year.

In 2014, Bigelow announced that prices for human access to the space station were expected to be US$26.25 million aboard a SpaceX Dragon, or US$36.75 million aboard a Boeing CST-100.

The price for a two-month lease of one-third of a module (approximately 110 cubic metres (3,900 cubic feet; 110,000 litres)) was provisionally set at US$25 million.

Technical

Docking system

As of 2007 Bigelow was planning to equip its expandable space modules with both a Soyuz-style docking system on one end and a NASA-standard Low Impact Docking System on the other. The available docking port options for the Next Generation Commercial Space Station have not yet been released.

Test program

The "human-in-the-loop testing of the environmental control and life support system (ECLSS)" for Sundancer began in October 2010.

By January 2013, the Bigelow Expandable Activity Module (BEAM) pressurised module was under development by Bigelow Aerospace, being purchased by NASA for attachment to the International Space Station. The BEAM arrived at the ISS on April 10, 2016, was berthed to the station on April 16, and was expanded and pressurized on May 28, 2016. The initial plan was to test the expandable habitat technology for at least two years. During its flight mission, NASA has been testing and monitoring the module's structural integrity, leak rate, radiation dosage and temperature changes. The module has been performing well, and in October 2017, it was announced that the module would stay attached to the ISS until 2020, with options for two further one-year extensions. The module is being used to store up to 130 cargo transfer bags in an effort to free up additional space aboard the station.

Launch planning

Potential launch options are in the mid-heavy lift launch system class of launch vehicles, where Bigelow has now negotiated arrangements with two commercial launch providers. As of January 2013, both SpaceX—using the Falcon 9/Dragon— and United Launch Alliance/Boeing—using the Atlas V/CST-100—have signed to deliver launch services to Bigelow Space Station Alpha.

In February 2011, Bigelow announced that it would begin launching its unmanned space station modules in 2014 from Cape Canaveral using Atlas V launch vehicles.

In addition to the Atlas launches for the expandable modules, Bigelow had reserved a single 2014 launch on the SpaceX Falcon 9 rocket, but that launch had not taken place as of early 2019. As of August 2011, press reports indicate that Bigelow will launch at least some of their crews to the station on the human-rated Atlas V utilizing the Boeing CST-100 seven-person space capsule.

In April 2016, Bigelow signed an agreement with United Launch Alliance to launch the first B330 module in 2020 using an Atlas V rocket.

In October 2017, Bigelow Aerospace and United Launch Alliance (ULA) announced they are working together to launch a B330 expandable module on ULA's Vulcan launch vehicle. The launch would place a B330 module in Earth orbit, and after outfitting it would be boosted to low lunar orbit by two further Vulcan ACES launches by the end of 2022 to serve as a lunar depot. As this announcement stated that only a Vulcan had the performance and fairing capacity needed to launch a B330, it appears that any Atlas V launches would be for crew rather than B330 modules. The timeline may be 'aspirational' as ULA have indicated that the Vulcan will transition to using the ACES upper stage around 2024.

Long-term proposals

In late 2010, Bigelow indicated that the company would like to construct ten or more space stations and that there is a substantial commercial market to support such growth.

Future space station concepts

Space Complex Bravo
Complex Bravo Model.jpg
Station statistics
CrewUp to 24
Pressurised volume1,320 m3 (47,000 cu ft)

In 2010, Bigelow said that second orbital station—Space Complex Bravo—was scheduled to begin launches in 2016 and go into commercial operation in 2017. This complex would consist of four B330 modules. 

Bigelow has publicly shown space station design configurations with up to nine B330 modules containing 2,800 m3 (100,000 cu ft) of habitable space. The conceptual configurations are listed below.
  • Advanced Medical Facility (3000 m3) - Nine B330 modules, three propulsion buses with docking node, three crew capsules.
  • Biological Containment Station Low Earth Orbit (2800 m3 habitable, 660 m3 remotely controlled)
  • Biological Research Station Low Earth Orbit (2000 m3)
  • Deep Space Complex (1320 m3) - Four B330 modules, nine propulsion buses with docking node and three docking ports.
  • Lunar Depot Ares (990 m3) - Three B330 modules, four propulsion buses with docking nodes. The entire station would land directly onto the moon. It is intended to hold 12 astronauts but is capable of holding 18. Near the lunar base there would be a solar array field. A model of this concept has been built.
  • Mars Exploration (1320 m3) - Four B330 modules, three propulsion buses with docking node.
  • Resupply Depot Hercules (8300 m3) - Announced Oct 2010 Six B330 modules, three BA 2100 modules, nine propulsion buses with docking node and three crew capsules.

Soyuz (spacecraft)

From Wikipedia, the free encyclopedia

Soyuz
Soyuz TMA-7 spacecraft2edit1.jpg
Soyuz spacecraft (TMA version)

ManufacturerRKK Energia
Country of originSoviet Union, Russian Federation
OperatorSoviet space program (1967–91)
Roscosmos (1991 onwards)
ApplicationsCarry cosmonauts to orbit and back; originally intended for Soviet Moonshot and Salyut space station transportation.

Specifications
Design lifeUp to six months docked to station
RegimeLow Earth orbit (circumlunar spaceflight during early program)

Production
StatusIn service
First launch(Unmanned) November 28, 1966 (Manned) Soyuz 1 April 23, 1967

Related spacecraft
DerivativesShenzhou, Progress

Soyuz (Russian: Сою́з, IPA: [sɐˈjus], lit. Union) is a series of spacecraft designed for the Soviet space program by the Korolev Design Bureau (now RKK Energia) in the 1960s that remains in service today. The Soyuz succeeded the Voskhod spacecraft and was originally built as part of the Soviet manned lunar programs. The Soyuz spacecraft is launched on a Soyuz rocket, the most reliable launch vehicle in the world to date. The Soyuz rocket design is based on the Vostok launcher, which in turn was based on the 8K74 or R-7A Semyorka, a Soviet intercontinental ballistic missile. All Soyuz spacecraft are launched from the Baikonur Cosmodrome in Kazakhstan. Soyuz is currently the only means for manned space flights in the world and is heavily used in the International Space Station program.

History

The first Soyuz flight was unmanned and started on November 28, 1966. The first Soyuz mission with a crew, Soyuz 1, launched on 23 April 1967 but ended with a crash due to a parachute failure, killing cosmonaut Vladimir Komarov. The following flight was unmanned. Soyuz 3, launched on October 26, 1968, became the program's first successful manned mission. The only other flight to suffer a fatal accident, Soyuz 11, killed its crew of three when the cabin depressurized prematurely just before reentry. These were the only humans to date to have died above the Kármán line. Despite these early incidents, Soyuz is widely considered the world's safest, most cost-effective human spaceflight vehicle, established by its unparalleled length of operational history. Soyuz spacecraft were used to carry cosmonauts to and from Salyut and later Mir Soviet space stations, and are now used for transport to and from the International Space Station (ISS). At least one Soyuz spacecraft is docked to ISS at all times for use as an escape craft in the event of an emergency. The spacecraft is intended to be replaced by the six-person Federation spacecraft.

Design

Diagram showing the three elements of the Soyuz TMA spacecraft.
 
A Soyuz spacecraft consists of three parts (from front to back):
  • A spheroid orbital module, which provides accommodation for the crew during their mission;
  • A small aerodynamic reentry module, which returns the crew to Earth;
  • A cylindrical service module with solar panels attached, which contains the instruments and engines.
The orbital and service modules are single-use and are destroyed upon reentry in the atmosphere. Though this might seem wasteful, it reduces the amount of heat shielding required for reentry, saving mass compared to designs containing all of the living space and life support in a single capsule. This allows smaller rockets to launch the spacecraft or can be used to increase the habitable space available to the crew (6.2 m3 in Apollo CM vs 7.5 m3 in Soyuz) in the mass budget. The orbital and reentry portions are habitable living space, with the service module containing the fuel, main engines and instrumentation.

Soyuz can carry up to three crew members and provide life support for about 30 person days. The life support system provides a nitrogen/oxygen atmosphere at sea level partial pressures. The atmosphere is regenerated through potassium superoxide (KO2) cylinders, which absorb most of the carbon dioxide (CO2) and water produced by the crew and regenerates the oxygen, and lithium hydroxide (LiOH) cylinders which absorb leftover CO2

The vehicle is protected during launch by a payload fairing, which is jettisoned along with the SAS at ​2 12 minutes into launch. It has an automatic docking system. The ship can be operated automatically, or by a pilot independently of ground control.

Launch escape system

The Vostok spacecraft utilized an ejector seat to bail out the cosmonaut in the event of a low-altitude launch failure, as well as during reentry, however it would probably have been ineffective in the first 20 seconds after liftoff when the altitude would be too low for the parachute to deploy. Inspired by the Mercury LES, Soviet designers began work on a similar system in 1962. This included developing a complex sensing system to monitor various launch vehicle parameters and trigger an abort if a booster malfunction occurred. Based on data from R-7 launches over the years, engineers developed a list of the most likely failure modes for the vehicle and could narrow down abort conditions to premature separation of a strap-on booster, low engine thrust, loss of combustion chamber pressure, or loss of booster guidance. The Spacecraft Abort System (SAS; Russian: Система Аварийного Спасения, translit. Sistema Avarijnogo Spaseniya) could also be manually activated from the ground, but unlike American spacecraft, there was no way for the cosmonauts to trigger it themselves.

Since it turned out to be almost impossible to separate the entire payload shroud from the Soyuz service module cleanly, the decision was made to have the shroud split between the service module and descent module during an abort. Four folding stabilizers were added to improve aerodynamic stability during ascent. Two test runs of the SAS were carried out in 1966-67.

The basic design of the SAS has remained almost unchanged in 50 years of use and all Soyuz launches carry it. The only modification was in 1972 when the aerodynamic fairing over the SAS motor nozzles was removed for weight-saving reasons as the redesigned Soyuz 7K-T spacecraft carried extra life support equipment. The unmanned Progress resupply ferry has a dummy escape tower and removes the stabilizer fins from the payload shroud. There have been three failed launches of a manned Soyuz vehicle, Soyuz 18-1 in 1975, Soyuz T-10-1 in 1983 and Soyuz MS-10 in October 2018. The 1975 failure was aborted after escape tower jettison. In 1983, Soyuz T-10-1's SAS successfully rescued the cosmonauts from an on-pad fire and explosion of the launch vehicle. Most recently in 2018, the SAS sub-system in the payload shroud of Soyuz MS-10 successfully rescued the cosmonauts from a rocket failure 2 minutes and 45 second after liftoff after the escape tower had already been jettisoned.

Orbital module

Soyuz spacecraft's Orbital Module
 
The forepart of the spacecraft is the Orbital Module (Russian: бытовой отсек, translit. bytovoi otsek), also known as habitation section. It houses all the equipment that will not be needed for reentry, such as experiments, cameras or cargo. The module also contains a toilet, docking avionics and communications gear. Internal volume is 6 m3 (212 cu ft), living space 5 m3 (177 cu ft). On the latest Soyuz versions (since Soyuz TM), a small window was introduced, providing the crew with a forward view. 

A hatch between it and the Descent Module can be closed so as to isolate it to act as an airlock if needed, crew members exiting through its side port (near the descent module). On the launch pad, the crew enter the spacecraft through this port. 

This separation also lets the Orbital Module be customized to the mission with less risk to the life-critical descent module. The convention of orientation in a micro-g environment differs from that of the Descent Module, as crew members stand or sit with their heads to the docking port. Also the rescue of the crew whilst on the launch pad or with the SAS system is complicated because of the orbital module. 

Separation of the Orbital Module is critical for a safe landing; without separation of the Orbital Module, it is not possible for the crew to survive landing in the Descent Module. This is because the Orbital Module would interfere with proper deployment of the Descent Module's parachutes, and the extra mass exceeds the capability of the main parachute and braking engines to provide a safe soft landing speed. In view of this, the Orbital Module was separated before the ignition of the return engine until the late 1980s. This guaranteed that the Descent Module and Orbital Module would be separated before the Descent Module was placed in a reentry trajectory. However, after the problematic landing of Soyuz TM-5 in September 1988 this procedure was changed and the Orbital Module is now separated after the return maneuver. This change was made as the TM-5 crew could not deorbit for 24 hours after they jettisoned their Orbital Module, which contained their sanitation facilities and the docking collar needed to attach to MIR. The risk of not being able to separate the Orbital Module is effectively judged to be less than the risk of needing the facilities in it, following a failed deorbit.

Descent module

Replica of the Soyuz spacecraft's Entry Module at the Euro Space Center In Belgium
 
Soyuz spacecraft's Descent Module
 
The Descent Module (Russian: Спуска́емый Аппара́т, tr. Spuskáyemy Apparát), also known as a reentry capsule, is used for launch and the journey back to Earth. Half of the Descent Module is covered by a heat-resistant covering to protect it during reentry; this half faces the Earth during reentry. It is slowed initially by the atmosphere, then by a braking parachute, followed by the main parachute which slows the craft for landing. At one meter above the ground, solid-fuel braking engines mounted behind the heat shield are fired to give a soft landing. One of the design requirements for the Descent Module was for it to have the highest possible volumetric efficiency (internal volume divided by hull area). The best shape for this is a sphere — as the pioneering Vostok spacecraft's Descent Module used — but such a shape can provide no lift, which results in a purely ballistic reentry. Ballistic reentries are hard on the occupants due to high deceleration and cannot be steered beyond their initial deorbit burn. That is why it was decided to go with the "headlight" shape that the Soyuz uses – a hemispherical forward area joined by a barely angled (seven degrees) conical section to a classic spherical section heat shield. This shape allows a small amount of lift to be generated due to the unequal weight distribution. The nickname was thought up at a time when nearly every headlight was circular. The small dimensions of the Descent Module led to it having only two-man crews after the death of the Soyuz 11 crew. The later Soyuz T spacecraft solved this issue. Internal volume of Soyuz SA is 4 m3 (141 cu ft); 2.5 m3 (88 cu ft) is usable for crew (living space).

Service module

Soyuz spacecraft's Instrumentation/Propulsion Module
 
At the back of the vehicle is the Service Module (Russian: прибо́рно-агрега́тный отсе́к, tr. pribórno-agregátny otsék). It has a pressurized container shaped like a bulging can (instrumentation compartment, priborniy otsek) that contains systems for temperature control, electric power supply, long-range radio communications, radio telemetry, and instruments for orientation and control. A non-pressurized part of the Service Module (propulsion compartment, agregatniy otsek) contains the main engine and a liquid-fuelled propulsion system for maneuvering in orbit and initiating the descent back to Earth. The ship also has a system of low-thrust engines for orientation, attached to the intermediate compartment (perekhodnoi otsek). Outside the Service Module are the sensors for the orientation system and the solar array, which is oriented towards the Sun by rotating the ship. An incomplete separation between the Service and Reentry Modules led to emergency situations during Soyuz 5, Soyuz TMA-10 and Soyuz TMA-11, which led to an incorrect reentry orientation (crew ingress hatch first). The failure of several explosive bolts did not cut the connection between the Service/Reentry Modules on the latter two flights.

Reentry procedure

The Soyuz uses a method similar to the US Apollo command and service module to deorbit itself. The spacecraft is turned engine-forward and the main engine is fired for deorbiting on the far side of Earth ahead of its planned landing site. This requires the least propellant for reentry; the spacecraft travels on an elliptical Hohmann transfer orbit to the entry interface point where atmospheric drag slows it enough to fall out of orbit. 

Early Soyuz spacecraft would then have the Service and Orbital Modules detach simultaneously from the Descent Module. As they are connected by tubing and electrical cables to the Descent Module, this would aid in their separation and avoid having the Descent Module alter its orientation.[citation needed] Later Soyuz spacecraft detached the Orbital Module before firing the main engine, which saved propellant. Since the Soyuz TM-5 landing issue, the Orbital Module is once again detached only after the reentry firing, which led to (but did not cause) emergency situations of Soyuz TMA-10 and TMA-11. The Orbital Module cannot remain in orbit as an addition to a space station, as the airlock hatch between the Orbital and Reentry Modules is a part of the Reentry Module, and the Orbital Module therefore depressurizes after separation.

Reentry firing is usually done on the "dawn" side of the Earth, so that the spacecraft can be seen by recovery helicopters as it descends in the evening twilight, illuminated by the Sun when it is above the shadow of the Earth. The Soyuz craft is designed to come down on land, usually somewhere in the deserts of Kazakhstan in central Asia. This is in contrast to early US manned spacecraft, which splashed down in the ocean.

Spacecraft systems

Soyuz diagram
 
Exploded plan of the Soyuz MS spacecraft.
Exploded plan of the Soyuz MS spacecraft.
  • Thermal control systemSistema Obespecheniya Teplovogo Rezhima, SOTR
  • Life support systemKompleks Sredstv Obespecheniya Zhiznideyatelnosti, KSOZh
  • Power supply systemSistema Elektropitaniya, SEP
  • Communication and tracking systems – Rassvet (Dawn) radio communications system, onboard measurement system (SBI), Kvant-V spacecraft control, Klyost-M television system, orbit radio tracking (RKO)
  • Onboard complex control systemSistema Upravleniya Bortovym Kompleksom, SUBK
  • Combined propulsion systemKompleksnaya Dvigatelnaya Ustanovka, KDU
  • Chaika-3 motion control system (SUD)
  • Optical/visual devices (OVP) – VSK-4 (Vizir Spetsialniy Kosmicheskiy-4), night vision device (VNUK-K, Visir Nochnogo Upravleniya po Kursu), docking light, pilot's sight (VP-1, Vizir Pilota-1), laser rangefinder (LPR-1, Lazerniy Dalnomer-1)
  • Kurs rendezvous system
  • Docking systemSistema Stykovki i Vnutrennego Perekhoda, SSVP
  • Teleoperator control modeTeleoperatorniy Rezhim Upravleniya, TORU
  • Entry actuators systemSistema Ispolnitelnikh Organov Spuska, SIO-S
  • Landing aids kitKompleks Sredstv Prizemleniya, KSP
  • Portable survival kitNosimiy Avariyniy Zapas, NAZ, containing a TP-82 Cosmonaut survival pistol or Makarov pistol
  • Soyuz launch escape systemSistema Avariynogo Spaseniya, SAS
Drawing-Soyuz-TMA-exp12.png
Orbital module (A)
1 docking mechanism
2, 4 Kurs rendezvous radar antenna
3 television transmission antenna
5 camera
6 hatch

Descent module (B)

7 parachute compartment
8 periscope
9 porthole
11 heat shield

Service module (C)

10, 18 attitude control engines
12 Earth sensors
13 Sun sensor
14 solar panel attachment point
15 thermal sensor
16 Kurs antenna
17 main propulsion
19 communication antenna
20 fuel tanks
21 oxygen tank

Variants

The Soyuz spacecraft has been the subject of continuous evolution since the early 1960s. Thus several different versions, proposals and projects exist.

Soyuz family tree

Specifications

Soyuz 7K (part of the 7K-9K-11K circumlunar complex) (1963)

Soyuz 7K manned spacecraft concept (1963).

Sergei Korolev initially promoted the Soyuz A-B-V circumlunar complex (7K-9K-11K) concept (also known as L1) in which a two-man craft Soyuz 7K would rendezvous with other components (9K and 11K) in Earth orbit to assemble a lunar excursion vehicle, the components being delivered by the proven R-7 rocket.

First generation

Soyuz 7K-OK(A) spacecraft with an active docking unit.
 
Soyuz 7K-OKS for Salyut space stations.
 
The manned Soyuz spacecraft can be classified into design generations. Soyuz 1 through Soyuz 11 (1967–1971) were first-generation vehicles, carrying a crew of up to three without spacesuits and distinguished from those following by their bent solar panels and their use of the Igla automatic docking navigation system, which required special radar antennas. This first generation encompassed the original Soyuz 7K-OK and the Soyuz 7K-OKS for docking with the Salyut 1 space station. The probe and drogue docking system permitted internal transfer of cosmonauts from the Soyuz to the station. 

The Soyuz 7K-L1 was designed to launch a crew from the Earth to circle the moon, and was the primary hope for a Soviet circumlunar flight. It had several test flights in the Zond program from 1967–1970 (Zond 4 to Zond 8), which produced multiple failures in the 7K-L1's reentry systems. The remaining 7K-L1s were scrapped. The Soyuz 7K-L3 was designed and developed in parallel to the Soyuz 7K-L1, but was also scrapped. Soyuz 1 was plagued with technical issues, and cosmonaut Vladimir Komarov was killed when the spacecraft crashed during its return to Earth. This was the first in-flight fatality in the history of spaceflight

The next manned version of the Soyuz was the Soyuz 7K-OKS. It was designed for space station flights and had a docking port that allowed internal transfer between spacecraft. The Soyuz 7K-OKS had two manned flights, both in 1971. Soyuz 11, the second flight, depressurized upon reentry, killing its three-man crew.

Second generation

Upgraded Soyuz 7K-T version.

The second generation, called Soyuz Ferry or Soyuz 7K-T, comprised Soyuz 12 through Soyuz 40 (1973–1981).

It was developed out of the military Soyuz concepts studied in previous years and was capable of carrying 2 cosmonauts with Sokol space suits (after the Soyuz 11 accident). Several models were planned, but none actually flew in space. These versions were named Soyuz P, Soyuz PPK, Soyuz R, Soyuz 7K-VI, and Soyuz OIS (Orbital Research Station). 

The Soyuz 7K-T/A9 version was used for the flights to the military Almaz space station.

Soyuz 7K-TM was the spacecraft used in the Apollo-Soyuz Test Project in 1975, which saw the first and only docking of a Soyuz spacecraft with an Apollo Command/Service Module. It was also flown in 1976 for the Earth-science mission, Soyuz 22. Soyuz 7K-TM served as a technological bridge to the third generation.

Third generation

Soyuz-T spacecraft.

The third generation Soyuz-T (T: Russian: транспортный, translit. transportnyi, lit. 'transport') spacecraft (1976–1986) featured solar panels allowing longer missions, a revised Igla rendezvous system and new translation/attitude thruster system on the Service module. It could carry a crew of three, now wearing spacesuits.

Fourth generation

Soyuz-TM (1986–2003)

Soyuz-TM spacecraft. Compare the antennas on the orbital module to those on Soyuz-T. Differences reflect the change from the Igla rendezvous system used on Soyuz-T to the Kurs rendezvous system used on Soyuz-TM.

The Soyuz-TM crew transports (M: Russian: модифицированный, translit. modifitsirovannyi, lit. 'modified') were fourth generation Soyuz spacecraft, and were used from 1986 to 2003 for ferry flights to Mir and the International Space Station.

Soyuz-TMA (2003–2012)


Soyuz TMA (A: Russian: антропометрический, translit. antropometricheskii, lit. 'anthropometric') features several changes to accommodate requirements requested by NASA in order to service the International Space Station, including more latitude in the height and weight of the crew and improved parachute systems. It is also the first expendable vehicle to feature "glass cockpit" technology. Soyuz-TMA looks identical to a Soyuz-TM spacecraft on the outside, but interior differences allow it to accommodate taller occupants with new adjustable crew couches.

Soyuz TMA-M (2010–2016)

The Soyuz TMA-M was an upgrade of the baseline Soyuz-TMA, using a new computer, digital interior displays, updated docking equipment, and the vehicle's total mass was reduced by 70 kilograms. The new version debuted on 7 October 2010 with the launch of TMA-01M, carrying the ISS Expedition 25 crew.

The Soyuz TMA-08M mission set a new record for the fastest manned docking with a space station. The mission used a new six-hour rendezvous, faster than the previous Soyuz launches, which had, since 1986, taken two days.

Soyuz MS (since 2016)

Soyuz MS-01 docked to the ISS

Soyuz MS is the final planned upgrade of the Soyuz spacecraft. Its maiden flight was in July 2016 with mission MS-01. Major changes include:
  • more efficient solar panels
  • modified docking and attitude control engine positions for redundancy during docking and de-orbit burns
  • new Kurs NA approach and docking system which weighs half as much and consumes a third of the power of previous system
  • new TsVM-101 computer, about one eighth the weight (8.3 kg vs. 70 kg) and much smaller than the previous Argon-16 computer
  • unified digital command/telemetry system (MBITS) to relay telemetry via satellite, and control spacecraft when out of sight of ground stations; also provides the crew with position data when out of ground tracking range
  • GLONASS/GPS and Cospas-Sarsat satellite systems for more accurate location during search/rescue operations after landing

Related craft

The unmanned Progress spacecraft were derived from Soyuz and are used for servicing space stations. 

While not being direct derivatives of Soyuz, the Chinese Shenzhou spacecraft uses Soyuz TM technology sold in 1984 and the Indian Orbital Vehicle follow the same general layout as that pioneered by Soyuz.

Romanization (cultural)

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