Long March 1D[1][2][3][4]
FunctionOrbital launch vehicle
ManufacturerCALT
Country of originChina
Size
Height28.22 m (92.6 ft)
Diameter2.25 m (7.4 ft)
Mass81,650 kg (180,010 lb)
Stages3
Capacity
Payload to LEO
Mass930 kg (2,050 lb)
Associated rockets
FamilyLong March 1
ComparableMu 1-3-4
Launch history
StatusRetired
Launch sitesTaiyuan LC-1
Total launches3
Success(es)2
Failure(s)1
First flight1995-06-01
Last flight2002-01-03
Type of passengers/cargoreentry vehicle tests
First stage
Height18.20 m (59.7 ft)
Diameter2.25 m (7.4 ft)
Empty mass4,100 kg (9,000 lb)
Gross mass65,000 kg (143,000 lb)
Propellant mass61,100 kg (134,700 lb)
Powered by1 YF-2B (4 x YF-1B)[5]
Maximum thrustSL: 1,101.2 kN (247,600 lbf)
Vac: 1,214.4 kN (273,000 lbf)
Specific impulseSL: 242.5 seconds (2.378 km/s)
Vac: 267.4 seconds (2.622 km/s)
Burn time131.5 seconds
PropellantUDMH/N2O4
Second stage
Height6.04 m (19.8 ft)
Diameter2.25 m (7.4 ft)
Empty mass1,620 kg (3,570 lb)
Gross mass14,000 kg (31,000 lb)
Propellant mass12,380 kg (27,290 lb)
Powered by2 YF-40[5]
Maximum thrust98.1 kN (22,100 lbf)
Specific impulse295.2 seconds (2.895 km/s)
Burn time365 seconds
PropellantUDMH/N2O4
Third stage
Height1.7 m (5.6 ft)
Diameter2.05 m (6.7 ft)
Empty mass665 kg (1,466 lb)
Gross mass1,315 kg (2,899 lb)
Propellant massMain: 650 kg (1,430 lb)
RCS: 147 kg (324 lb)
Powered byMain: FG-36 SRM
RCS: DaFY2-1 monopropellant thrusters[5]
Maximum thrust44 kN (9,900 lbf)
Specific impulse289 seconds (2.83 km/s)
Burn time43 seconds
PropellantMain: 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:

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

  1. ^ a b Norbert Bgügge. "Chang Zheng CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
  2. ^ "CZ-1D". Encyclopedia Astronautica. Archived from the original on 2013-12-30. Retrieved 2015-07-25. ((cite web)): Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  3. ^ a b "Chang Zheng-1". SinoDefence. Archived from the original on 2015-07-16. Retrieved 2015-07-25. ((cite web)): Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  4. ^ Norbert Bgügge. "DF-4 & CZ-1 Design". B14643.DE. Retrieved 2015-07-25.
  5. ^ a b c Norbert Bgügge. "Propulsion CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
  6. ^ Norbert Bgügge. "The Chinese DF-3 missile". B14643.DE. Archived from the original on 2015-10-17. Retrieved 2015-07-25. ((cite web)): Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  7. ^ "Dong Feng-3 (CSS-2)". SinoDefence. Archived from the original on 2015-11-23. Retrieved 2015-07-25. ((cite web)): Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  8. ^ "Dong Feng-4 (CSS-3)". SinoDefence. Archived from the original on 2015-11-23. Retrieved 2015-07-25. ((cite web)): Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  9. ^ "CZ-1". Encyclopedia Astronautica. Retrieved 2015-07-25.
  10. ^ "CZ-1". Encyclopedia Astronautica. Archived from the original on 2018-01-05. Retrieved 2015-07-25. ((cite web)): |archive-date= / |archive-url= timestamp mismatch; 2013-22-11 suggested (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  11. ^ Gunter Dirk Krebs. "CZ-1 (Chang Zheng-1)". Gunter's Space Page. Retrieved 2015-07-25.