Encyclopedia Astronautica
LK-4


Hydrazine propellant rocket stage. Loaded/empty mass 237/71 kg. Thrust 0.40 kN. Vacuum specific impulse 200 seconds. Upper stage for orbital insertion of Shavit or Leolink payloads.

Status: Development ended 2001.
Gross mass: 237 kg (522 lb).
Unfuelled mass: 71 kg (156 lb).
Height: 1.30 m (4.20 ft).
Diameter: 1.56 m (5.11 ft).
Span: 1.56 m (5.11 ft).
Thrust: 402 N (90 lbf).
Specific impulse: 200 s.
Burn time: 800 s.

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Associated Countries
Associated Launch Vehicles
  • LeoLink LK-1 Satellite launcher derived from planned Israeli Shavit-2 launch vehicle, but with rocket motors and major components built in USA to qualify for US contracts. More...

Associated Propellants
  • Hydrazine Hydrazine (N2H4) found early use as a fuel, but it was quickly replaced by UDMH. It is still used as a monopropellant for satellite station-keeping motors. Hydrazine (N2H4) found early use as a fuel, but it was quickly replaced by UDMH. It is still used as a monopropellant for satellite station-keeping motors. More...

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