Long March 1D

Long March 1D^[1]^[2]^[3]^[4]
Function	Orbital launch vehicle
Manufacturer	CALT
Country of origin	China
Size
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
Mass	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
Success(es)	2
Failure(s)	1
First flight	1 June 1995
Last flight	3 January 2002
Type of passengers/cargo	reentry vehicle tests
First stage
Height	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)
Powered by	1 YF-2B (4 x YF-1B)
Maximum thrust	SL: 1,101.2 kN (247,600 lbf); Vac: 1,214.4 kN (273,000 lbf)
Specific impulse	SL: 242.5 seconds (2.378 km/s); Vac: 267.4 seconds (2.622 km/s)
Burn time	131.5 seconds
Propellant	UDMH/N2O4
Second stage
Height	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)
Powered by	2 YF-40
Maximum thrust	98.1 kN (22,100 lbf)
Specific impulse	295.2 seconds (2.895 km/s)
Burn time	365 seconds
Propellant	UDMH/N2O4
Third stage
Height	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)
Powered by	Main: FG-36 SRM; RCS: DaFY2-1 monopropellant thrusters
Maximum thrust	44 kN (9,900 lbf)
Specific impulse	289 seconds (2.83 km/s)
Burn time	43 seconds
Propellant	Main: HTPB/AP; RCS: hydrazine
	[edit on Wikidata]

The Long March 1D was a member of China's Long March rocket family. 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 modifications 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 replacement of the DF-4 second stage motor YF-3A. The proposed replacement was the Long March 4 third stage engine, the YF-40.
A new inline inter-stage would replace the existing tapered connector between the second and third stages, which allowed for an additional 70 cm diameter to be added to the third stage skirt. This would allow for the addition of RCS to the third stage.
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 stabilised for added precision.^[1]^[3]

The new design did not have 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 in November 1997. The final and failed launch was on January 3, 2002.^[9]^[10]^[11]

References

Data from Aerospace China magazine

^ ^a ^b Norbert Bgügge. "Chang Zheng CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
^ "CZ-1D". Encyclopedia Astronautica. Archived from the original on 2013-12-30. Retrieved 2015-07-25.
^ ^a ^b "Chang Zheng-1". SinoDefence. Archived from the original on 2015-07-16. Retrieved 2015-07-25.
^ Norbert Bgügge. "DF-4 & CZ-1 Design". B14643.DE. Retrieved 2015-07-25.
^ ^a ^b ^c Norbert Bgügge. "Propulsion CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
^ Norbert Bgügge. "The Chinese DF-3 missile". B14643.DE. Archived from the original on 2015-10-17. Retrieved 2015-07-25.
^ "Dong Feng-3 (CSS-2)". SinoDefence. Archived from the original on 2015-11-23. Retrieved 2015-07-25.
^ "Dong Feng-4 (CSS-3)". SinoDefence. Archived from the original on 2015-11-23. Retrieved 2015-07-25.
^ "CZ-1". Encyclopedia Astronautica. Archived from the original on May 1, 2002. Retrieved 2015-07-25.
^ "CZ-1". Encyclopedia Astronautica. Archived from the original on 2013-12-03. 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

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[b14643-cz1desc-1] Norbert Bgügge. "Chang Zheng CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.

[ea-cz1d-2] "CZ-1D". Encyclopedia Astronautica. Archived from the original on 2013-12-30. Retrieved 2015-07-25.

[sd-cz1-3] "Chang Zheng-1". SinoDefence. Archived from the original on 2015-07-16. Retrieved 2015-07-25.

[b14643-cz1design-4] Norbert Bgügge. "DF-4 & CZ-1 Design". B14643.DE. Retrieved 2015-07-25.

[b14643-cz1prop-5] Norbert Bgügge. "Propulsion CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.

[b14643-df3-6] Norbert Bgügge. "The Chinese DF-3 missile". B14643.DE. Archived from the original on 2015-10-17. Retrieved 2015-07-25.

[sd-df3-7] "Dong Feng-3 (CSS-2)". SinoDefence. Archived from the original on 2015-11-23. Retrieved 2015-07-25.

[sd-df4-8] "Dong Feng-4 (CSS-3)". SinoDefence. Archived from the original on 2015-11-23. Retrieved 2015-07-25.

[ea-cz1-9] "CZ-1". Encyclopedia Astronautica. Archived from the original on May 1, 2002. Retrieved 2015-07-25.

[ea-cz1fam-10] "CZ-1". Encyclopedia Astronautica. Archived from the original on 2013-12-03. Retrieved 2015-07-25.

[gunter-cz1-11] Gunter Dirk Krebs. "CZ-1 (Chang Zheng-1)". Gunter's Space Page. Retrieved 2015-07-25.

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v t e Long March (rocket family)
Rockets	Feng Bao 1 Long March 1 1D Long March 2 2A 2C 2D 2E 2F Long March 3 3A 3B 3B/E 3C Long March 4 4A 4B 4C Long March 5 5B Long March 6 6A 6C Long March 7 7A Long March 8 8A Long March 9 Long March 10 Long March 11 Long March 12
Launch sites	Jiuquan Taiyuan Wenchang Commercial Xichang
Manufacturers	China Academy of Launch Vehicle Technology Shanghai Academy of Spaceflight Technology
Designers	Wang Xiji
List of Long March launches

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Ariane 6 Atlas V Ceres 1 1S Chollima-1 Electron Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H-IIA H3 Hyperbola-1 Jielong 1 3 KAIROS^† Kaituozhe 2 Kinetica 1 Kuaizhou 1 1A 11 Long March 2C 2D 2F 3A 3B/E 3C 4B 4C 5 5B 6 6A 7 7A 8 11 11H LVM3 Minotaur I IV V C Nuri OS-M1^† Pegasus XL Proton-M PSLV Qaem 100 Qased RS1^† Shavit 2 Simorgh SLS Block 1 Soyuz-2 2.1a / STA 2.1b / STB 2-1v SSLV Starship Tianlong-2 Unha Vega C Vulcan Centaur Zhuque 2
In development	Antares 330 Bloostar Cyclone-4M Deca Epsilon S Eris Gravity-2 Hyperbola-2 Irtysh Kuaizhou 21 31 Long March 9 10 12 Miura 5 MLV Neutron New Glenn New Line 1 NGLV Nova OS-M 2 4 Orbex Prime Pallas-1 Red Dwarf SLS Block 1B Block 2 Soyuz-7 Terran R Tianlong-3 VLM Vega E Zero Zhuque 3 Zuljanah
Retired	Antares 110 120 130^† 230 230+ Ariane 1 2 3 4 5 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 II III IV IV Heavy Diamant Dnepr Energia Epsilon Europa I^† II^† Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" Feng Bao 1 GSLV Mk I H-I H-II H-IIB Juno I Juno II Kaituozhe-1 Kosmos original 1 2/2I 3 3M Lambda 4S LauncherOne Long March 1 1D^† 2A 2E 3 3B 4A Mu 4S 3C 3H 3S 3SII V N1^† N-I N-II Naro-1 Paektusan^† Pilot-2^† R-7 Luna Molniya M L Polyot Soyuz original FG L M U U2 Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna^† Rocket 3 Safir 1 1A 1B Saturn I IB V Scout X-1 Blue Scout II^† X-2^† X-2M X-3 X-3M X-4 X-2B^† B A B-1 D-1 A-1 E-1 F-1 G-1 Shavit original 1 SLV Space Shuttle SPARK^† Sparta SS-520 Start-1 Terran 1^† Thor Able Ablestar 1 2 Agena A B D Burner 1 2 Delta DSV-2U Thorad-Agena SLV-2G SLV-2H Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon R-36-O original 2 3 Universal Rocket UR-500 Proton Proton-K Rokot Strela Vanguard Vega original VLS-1^† Zenit 2 2M 2FG 3SL 3SLB 3F Zhuque 1^†
Classes	Sounding rocket Small-lift launch vehicle Medium-lift launch vehicle Heavy-lift launch vehicle Super heavy-lift launch vehicle
This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future Symbol ^† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)