Long March 1D

Long March 1D^[1]^[2]^[3]^[4]
Size
Function	Orbital launch vehicle
Manufacturer	CALT
Country of origin	China
Height	28.22 m (92.6 ft)
Diameter	2.25 m (7.4 ft)
Mass	81,650 kg (180,010 lb)
Stages	3
Capacity
Payload to LEO	930 kg (2,050 lb)
Associated rockets
Family	Long March 1
Comparable	Mu 1-3-4
Launch history
Status	Retired
Launch sites	Taiyuan LC-1
Total launches	3
Successes	2
Failures	1
First flight	1995-06-01
Last flight	2002-01-03
Notable payloads	reentry vehicle tests

First stage
Length	18.20 m (59.7 ft)
Diameter	2.25 m (7.4 ft)
Empty mass	4,100 kg (9,000 lb)
Gross mass	65,000 kg (143,000 lb)
Propellant mass	61,100 kg (134,700 lb)
Engines	1 YF-2B (4 x YF-1B)^[5]
Thrust	SL: 1,101.2 kN (247,600 lb_f) Vac: 1,214.4 kN (273,000 lb_f)
Specific impulse	SL: 242.5 seconds (2.378 km/s) Vac: 267.4 seconds (2.622 km/s)
Burn time	131.5 seconds
Fuel	UDMH/N₂O₄
Second stage
Length	6.04 m (19.8 ft)
Diameter	2.25 m (7.4 ft)
Empty mass	1,620 kg (3,570 lb)
Gross mass	14,000 kg (31,000 lb)
Propellant mass	12,380 kg (27,290 lb)
Engines	2 YF-40^[5]
Thrust	98.1 kN (22,100 lb_f)
Specific impulse	295.2 seconds (2.895 km/s)
Burn time	365 seconds
Fuel	UDMH/N₂O₄
Third stage
Length	1.7 m (5.6 ft)
Diameter	2.05 m (6.7 ft)
Empty mass	665 kg (1,466 lb)
Gross mass	1,315 kg (2,899 lb)
Propellant mass	Main: 650 kg (1,430 lb) RCS: 147 kg (324 lb)
Engines	Main: FG-36 SRM RCS: DaFY2-1 monopropellant thrusters^[5]
Thrust	44 kN (9,900 lb_f)
Specific impulse	289 seconds (2.83 km/s)
Burn time	43 seconds
Fuel	Main: HTPB RCS: hydrazine

During the 1990s CALT developed an improved version of the DF-4 to test the reentry vehicle warheads of the DF-31.^[6]^[7]^[8] They took advantage of this development and offered it as the Long March 1D for commercial application. The modification included:

An DF-4 improved first stage, which used the new version of the YF-2B, and switched propellants to UDMH/N₂O₄ for improved performance.
The use switch of the second stage YF-3A, for the Long March 4 third stage engine, the YF-40.
A new, cylinder interstage between the second and third stage, which enabled to add RCS to the third stage. The olde one was tapered.
A new third stage with a new motor, the FG-36 and an optional RCS.
A new computer inertial guidance system which enabled the third stage to be 3-axis stabilized for added precision.^[1]^[3]

The new design did not had a good reception and was only used for reentry vehicle tests. It flew three suborbital missions from Taiyuan LC-1 with two successes and a failure on the final mission. The first launch was on June 1, 1995 and the second one was on November 1997. The final and failed on was on January 3, 2002.^[9]^[10]^[11]

References

Data from Aerospace China magazine

1 2 Norbert Bgügge. "Chang Zheng CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
↑ "CZ-1D". Encyclopedia Astronautica. Retrieved 2015-07-25.
1 2 "Chang Zheng-1". SinoDefence. Retrieved 2015-07-25.
↑ Norbert Bgügge. "DF-4 & CZ-1 Design". B14643.DE. Retrieved 2015-07-25.
1 2 3 Norbert Bgügge. "Propulsion CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
↑ Norbert Bgügge. "The Chinese DF-3 missile". B14643.DE. Retrieved 2015-07-25.
↑ "Dong Feng-3 (CSS-2)". SinoDefence. Retrieved 2015-07-25.
↑ "Dong Feng-4 (CSS-3)". SinoDefence. Retrieved 2015-07-25.
↑ "CZ-1". Encyclopedia Astronautica. Retrieved 2015-07-25.
↑ "CZ-1". Encyclopedia Astronautica. Retrieved 2015-07-25.
↑ Gunter Dirk Krebs. "CZ-1 (Chang Zheng-1)". Gunter's Space Page. Retrieved 2015-07-25.

External links

China Academy of Launch Vehicle Technology

Long March rockets

LM 1 family	Long March 1 1D

LM 2 family	Feng Bao 1 Long March 2A 2C 2D 2E 2E(A) 2F

LM 3 family	Long March 3 3A 3B 3B/E 3B(A) 3C

LM 4 family	Long March 4A 4B 4C

LM 5 family	Long March 5

LM 6 family	Long March 6

LM 7 family	Long March 7

LM 8 family	Long March 8

LM 9 family	Long March 9

LM 11 family	Long March 11

List of Long March launches China Academy of Launch Vehicle Technology

Chinese space program

Space programs	Beidou Navigation Satellite System Chinese anti-satellite missile test Chinese space station CBERS CLEP (Chang'e) Dark Matter Particle Explorer Dong Fang Hong Double Star Fanhui Shi Weixing Fengyun Hard X-ray Modulation Telescope Kuafu Kuaizhou Long March Naga-L Project 921-3 Shenlong Shenzhou program Shuguang Space Solar Telescope Tiangong program Tianlian I Tianzhou Yaogan Yinghuo-1

Launch sites	Jiuquan Satellite Launch Center Taiyuan Satellite Launch Center Xichang Satellite Launch Center (include China Wenchang Spacecraft Launch Site)

Scientists	Chen Qiufa Du Qinghua Hu Haichang Ma Xingrui Ouyang Ziyuan Qi Faren Qian Xuesen Sun Laiyan Wan Hu Wang Yongzhi Xu Dazhe Ye Peijian Zhao Jiuzhang Zhu Miaolong

Astronauts	Chen Dong Fei Junlong Jing Haipeng Liu Boming Liu Yang Liu Wang Nie Haisheng Yang Liwei Zhai Zhigang Zhang Xiaoguang Wang Yaping

China National Space Administration (CNSA)

Orbital launch systems

See also: Comparison of orbital launch systems

Current	Angara 1.2 A5 Antares 200 Ariane 5 Atlas V Delta II IV Dnepr Epsilon Falcon 9 v1.2 "Full Thrust" GSLV H-IIA H-IIB Kuaizhou Long March 2C 2D 2F 3A 3B 3C 4B 4C 5 6 7 11 LVM3 Minotaur I IV V C Pegasus Proton-M PSLV Rokot Safir Shavit Simorgh Soyuz U FG Soyuz-2 2.1a / STA 2.1b / STB 2-1v Strela Unha Vega Zenit 3SL 3SLB 3F

In development	Angara A5P A5V Antares 300 Ariane 6 Electron Falcon 9 "Block 5" Falcon Heavy Firefly α H3 ITS KZ-11 KZ-21 Long March 8 9 LauncherOne Mayak Naga-L Naro-2 New Glenn Orel Proton Light Medium RPS SLS Soyuz-5 SPARK SS-520 Tronador II Tsyklon-4 ULV VLM Vulcan

Retired	Antares 100 Ariane 1 2 3 4 ASLV Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able Agena Centaur Black Arrow Conestoga Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 III Diamant Energia Europa Falcon 1 Falcon 9 v1.0 v1.1 Feng Bao 1 H-I H-II Juno I Juno II Kaituozhe-1 Kosmos 1 2I 3 3M Lambda 4S Long March 1 2A 2E 3 4A Mu 4S 3C 3H 3S 3SII V N1 N-I N-II Naro-1 Paektusan Pilot Proton UR-500 K R-7 Luna Molniya M L Polyot Soyuz original L M U2 Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna Saturn I IB V INT-21 Scout SLV Space Shuttle Sparta Start-1 Thor Able Ablestar Agena Burner Delta DSV-2U Thorad-Agena Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon 2 3 Vanguard Zenit 2 2M

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