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Long March 7
Maquette Longue Marche 7 DSC 0004.jpg
FunctionMedium to heavy orbital launch vehicle
ManufacturerCALT
Country of originChina
Size
Height53.10 m (174.2 ft)
Diameter3.35 m (11.0 ft)
Mass594,000 kg (1,310,000 lb)
Stages2
Capacity
Payload to LEO (200km x 400km x 42°)13,500 kg (29,800 lb)
Payload to GTO5,500 kg (12,100 lb)
Associated rockets
FamilyLong March
ComparableDelta IV, Atlas V, Falcon 9 v1.1, GSLV Mk.III, H-IIA
Launch history
StatusActive
Launch sitesWenchang LC-2
Total launches2
Successes2
First flightJune 25, 2016

Boosters – K2 booster
No. boosters4
Length27 m (89 ft)
Diameter2.25 m (7.4 ft)
Engines1 YF-100
ThrustSL: 1,200 kN (270,000 lbf)
Vac: 1,340 kN (300,000 lbf)
Total thrustSL: 4,800 kN (1,100,000 lbf)
Vac: 5,360 kN (1,200,000 lbf)
Specific impulseSL: 300 seconds (2.9 km/s)
Vac: 335 seconds (3.29 km/s)
FuelRP-1/LOX
First stage – K3 core module
Diameter3.35 m (11.0 ft)
Engines2 YF-100
ThrustSL: 2,400 kN (540,000 lbf)
Vac: 2,680 kN (600,000 lbf)
Specific impulseSL: 300 seconds (2.9 km/s)
Vac: 335 seconds (3.29 km/s)
FuelRP-1/LOX
Second stage
Diameter3.35 m (11.0 ft)
Engines4 YF-115
Thrust706 kN (159,000 lbf)
Specific impulse342 seconds (3.35 km/s)
FuelRP-1/LOX
Third stage – Yuanzheng-1A(Optional)
Engines1 YF-50D
Thrust6.5 kN (1,500 lbf)
Specific impulse315.5 seconds (3.094 km/s)
FuelUDMH/N2O4

The Long March 7 (Chinese: 长征七号运载火箭), or Chang Zheng 7 as in pinyin, abbreviated LM-7 for export or CZ-7 within China, originally Long March 2F/H or Chang Zheng 2F/H, nicknamed "Ice Arrow"(Chinese: 冰箭), is a Chinese liquid-fuelled carrier rocket of the Long March family, developed by the China Aerospace Science and Technology Corporation. It made its inaugural flight on June 25, 2016.

Designed as a replacement of the Long March 2F, Long March 7 and its variants are expected to be the workhorse of the fleet, eventually accounting for around 70% of all Chinese launches. Long March 7 will also play a critical role in the Chinese Space Station. It was used to launch the Tianzhou robotic cargo spacecraft, and will eventually replace the Long March 2F as China's crew-rated launch vehicle.

History