Encyclopedia Astronautica
NK-33 LH2 Mod + 4 x LACE


Kuznetsov air augmented rocket engine. 980.7 kN. N1-MOK. Study 1974. Isp=430s. Ultimate derivative of NK-9. Propellants changed to LH2/LOX, 16 x modified NK-33 engines + 4 Liquid Air Cycle Engine Liquid Air/LH2 boosters.

All figures estimated based on tank volume of Block A and delivery of 90,000 kg payload to 400 kg MKBS orbit.

Application: N1-MOK.

Status: Study 1974.
Thrust: 980.70 kN (220,470 lbf).
Specific impulse: 430 s.
Burn time: 410 s.
First Launch: 1974.

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Associated Countries
See also
Associated Launch Vehicles
  • N1-MOK Russian heavy-lift orbital launch vehicle. Ultimate derivative of N1. Single-stage-to-orbit vehicle based on N1 Block A. Propellants changed to LH2/LOX, 16 x modified NK-33 engines + 4 Liquid Air Cycle Engine Liquid Air/LH2 boosters. All figures estimated based on tank volume of Block A and delivery of 90,000 kg payload to 450 km / 97.5 degree MKBS orbit. Briefly described in RKK Energia official history and in some detail in Peter James'
      1974
    book Soviet Conquest from Space! More...

Associated Manufacturers and Agencies
  • Kuznetsov Russian manufacturer of rocket engines. Kuznetsov Design Bureau, Russia. More...

Associated Propellants
  • Air/Lox/LH2 Ambient air (78 % nitrogen, 21% oxygen, etc.) is scooped up by air intakes and used in turbojet, turbofan, ramjet, scramjet, or other airbreathing engines as an oxidiser. In this variant the motor converts to pure rocket propulsion, using on-board liquid oxygen for the final push to orbit. More...

Associated Stages
  • N1-MOK Air/Lox/LH2 propellant rocket stage. Loaded/empty mass 1,200,000/300,000 kg. Thrust 15,600.00 kN. Specific impulse 430 seconds. Ultimate derivative of N1 Block A: Propellants changed to LH2/LOX, 16 x modified NK-33 engines + 4 Liquid Air Cycle Engine Liquid Air/LH2 boosters. All figures estimated based on tank volume of Block A and delivery of 90,000 kg payload to 400 kg MKBS orb More...

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