Long March 5

Long March 5

Long March 5 first flight waiting at launchpad
Function	heavy orbital launch vehicle
Manufacturer	CALT
Country of origin	China
Size
Height	57 m (187 ft)
Diameter	5 m (16 ft)
Mass	879,000 kg (1,938,000 lb)
Stages	2
Capacity
Payload to LEO (200km x 400km x 42°)	25,000 kg (55,000 lb)
Payload to GTO	14,000 kg (31,000 lb)
Payload to TLI	8,000 kg (18,000 lb)
Associated rockets
Family	Long March
Comparable	Delta IV Heavy, Ariane 5, Proton-M
Launch history
Status	Active
Launch sites	Wenchang LC-1
Total launches	1
Successes	1
First flight	November 3, 2016
Boosters - CZ-5-300
No. boosters	4
Length	27.6 m (91 ft)
Diameter	3.35 m (11.0 ft)
Gross mass	155,700 kg (343,300 lb)
Propellant mass	144,000 kg (317,000 lb)
Engines	2 x YF-100
Thrust	SL: 2,400 kN (540,000 lbf) Vac: 2,680 kN (600,000 lbf)
Total thrust	9,600 kN (2,200,000 lbf)
Specific impulse	SL: 300 seconds (2.9 km/s) Vac: 335 seconds (3.29 km/s)
Burn time	180 seconds
Fuel	RP-1/LOX
First stage - CZ-5-500
Length	31.7 m (104 ft)
Diameter	5 m (16 ft)
Gross mass	175,600 kg (387,100 lb)
Propellant mass	158,300 kg (349,000 lb)
Engines	2 x YF-77
Thrust	SL: 1,020 kN (230,000 lbf) Vac: 1,400 kN (310,000 lbf)
Specific impulse	SL: 310.2 seconds (3.042 km/s) Vac: 430 seconds (4.2 km/s)
Burn time	480 seconds
Fuel	LH2/LOX
Second stage - CZ-5-HO
Length	10.6 m (35 ft)
Diameter	5 m (16 ft)
Gross mass	22,200 kg (48,900 lb)
Propellant mass	17,100 kg (37,700 lb)
Engines	2 x YF-75D
Thrust	176.52 kN (39,680 lbf)88.26
Specific impulse	442 seconds (4.33 km/s)
Burn time	700 seconds
Fuel	LH2/LOX
Upper stage - YZ-2
Diameter	3.8 m (12 ft)
Engines	2 x YF-50D
Thrust	6.5 kN (1,500 lbf)
Specific impulse	316 seconds (3.10 km/s)
Burn time	1105 seconds
Fuel	N2O4/UDMH

Long March 5 (LM-5, CZ-5, or Changzheng 5) is a Chinese heavy lift launch system developed by China Academy of Launch Vehicle Technology (CALT). CZ-5 is the first Chinese vehicle with new design focusing on liquid rocket propellants from the ground up. Currently, two CZ-5 vehicle configurations are planned for different missions, with a maximum payload capacity of ~25,000 kilograms (55,000 lb) to LEO and ~14,000 kilograms (31,000 lb) to GTO.

The Long March 5 is planned to roughly match the capabilities of American EELV heavy-class vehicles such as the Delta IV Heavy.

The CZ-5's maiden launch occurred on November 3, 2016 at 12:43 UTC, from the Wenchang Spacecraft Launch Center on Hainan island. The launch was successful.

"The Chinese government approved the development of the rocket in 2007 following two decades of feasibility study. It will be manufactured at a facility in Tianjin, a coastal city near Beijing."

As of 2008^[update], the first launch of the Long March 5 was projected to "most likely" happen in Wenchang of the southernmost island province of Hainan, "where a new satellite launch center is under construction."

The first CZ-5 rocket to be launched completed production and testing in Tianjin manufacturing facility around August 16, 2016. It is to be shipped to launch centre on Hainan island within weeks.

The Chief Designer for the CZ-5 rocket was Long Lehao. The main objective for the CZ-5 rocket was to fulfill China's requirement for large payload to LEO and GTO missions for the next 20–30 years. The CZ-5 project was initially announced in February 2001, with initial development slated to begin in 2002 and the first versions of the vehicle to go into service by 2008. However, funding was only finally granted in 2007 as revealed by the developers during the Northeast China exhibition.