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Engine Model: 11D121. Government Designation: 11D121. Designer: Korolev. Developed in: 1969-74. Application: N-1 stage 1 (block A) roll control engine. Propellants: GOX/Kerosene. Thrust(vac): 68.650 kN (15,433 lbf). Isp: 313 sec. Isp (sea level): 273 sec. Chambers: 1. Chamber Pressure: 71.60 bar. Country: Russia. Status: Developed 1969-74.

Gimbaling +/- 45 degree. Propellants are fed from main engine (NK-15, NK-33) turbopumps.

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