NK-9

Subtopics

• NK-9V Kuznetsov LOx/Kerosene rocket engine. N-1 stage 2 / N-1 stage 3 / R-9 Stage 2. Developed for 2nd stage of the R-9 ICBM (alternative to RD-111 engine by OKB-456). NK-9 with increased expansion ratio. First flight 1965.
• NK-19 Kuznetsov LOx/Kerosene rocket engine. N-1 stage 4 (Block G). Development ended 1964. Based on NK-9 engine. Originally developed for the modernized second stage of the R-9 (abandoned). Also to have been used on GR-1 / 8K713 Stage 2. First flight 1969.
• NK-21 Kuznetsov LOx/Kerosene rocket engine. N-1 stage 3 (block V). Out of production. Based on NK-9 engine. Propellants kerosene T-1 / LOX. 4 engines used in N-1 stage 3 (block V). Used on N1 launch vehicle. First flight 1969.
• 11D53F Kuznetsov LOx/Kerosene rocket engine. N1F 1965 - V. Study 1965. As per N1 improvement study, 1965. Engine thrust increased and stretched propellant tanks resulting in 20% longer burn time.
• 11D53M Kuznetsov LOx/Kerosene rocket engine. N1M 1965 - V. Study 1965. As per N1 improvement study, 1965. Further increase in thrust of Block V engines. Used on N-IM 1965 launch vehicle.
• NK-31 Kuznetsov LOx/Kerosene rocket engine. Upgraded version of engines for N-1 stage 4, with multiple ignition capability and increased operational lifetime. Mothballed in 1974. Proposed for Black Colt launch vehicle in 1993.
• NK-39 Kuznetsov LOx/Kerosene rocket engine. N-1F stage 3 (Block V). Development ended 1971. Modified version of original engine with multiple ignition capability. Never flown and mothballed after the cancellation of the N1.
• NK-33 LH2 Mod + 4 x LACE Kuznetsov air augmented rocket engine. N1-MOK. Study 1974. 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.
• NK-9V-11D53 Kuznetsov LOx/Kerosene rocket engine. N-1 stage 3 (block V). Out of Production. Modification of NK-9 engine for the N-1 lunar rocket. May be identical to NK-21 (stage 3).
• NK-9V-11D54 Kuznetsov LOx/Kerosene rocket engine. N-1 stage 4 (block G). Out of Production. Modification of NK-9 engine for the N-1 lunar rocket. May be identical to NK-19 (stage 4).