Long March 1D

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Long March 1D is the improved version of Long March 1 rocket stage for Chinese space agency craft, mainly for the thrustor of stage 1, from 1020 kilonewtons to 1101.2 kilonewtons, also improved the performance for stage 2 and stage 3. The improved Long March 1D can launch variant of LEO satellite; the orientation of the satellite can be rotating or non-rotating. The first flight in November 1997 was successful.[citation needed]

Technical specifications[edit]

The rocket Stage 1 Stage 2 Stage 3
*Stages: 3
  • Length 28.220 m
  • Wingspan 3.810 m
  • Liftoff mass 81,075 kg
  • Liftoff thrust 1101.2 kN
  • Thrust-to-mass 13.6 N/kg
  • Payload
    • 930 kg (rotating)
    • 750 kg(non-rotating)
      (300 km circular, inclination 57 deg)
  • Orbit insertion accuracy
    • diff of ecc 0.001 to 0.005
    • diff of inc < 0.3 degrees
      (300~1000 km circular orbit)
  • Length 19.735 m
  • Diameter 2.250 m
  • Mass of the stage 65,040 kg
    • Mass of the structure 4,080 kg
    • Mass of the fuel 60,860 kg
  • Booster YF-2A
  • Fuel HNO3-27S/UDMH
  • Liftoff thrust (sealevel) 1101.2 kN
  • Specific impulse: 2378 N·s/kg
  • Burn time ~132 s
  • Length 6.037 m
  • Diameter 2.250 m
  • Stage mass 13,490 kg
  • Structure mass 1,100 kg
  • Fuel mass 12,380 kg
  • Booster YF-40 (two boosters)
  • Fuel N2O4/UDMH
  • Thrust in vacuum 100.86 kN
  • Specific impulse 2981.2 N·s/kg
  • Burn time 360 s
  • Length: 1.696 m
  • Diameter: 2.054 m
  • Stage mass 1,315 kg
  • Structure mass 523 kg
  • Fuel mass 792 kg
  • liquid 147 kg
  • solid 645 kg
  • Solid rocket booster: FG-36

References[edit]

  • Data from Aerospace China magazine

External links[edit]