Engine Model: R-56 Blok A. Developed in: 1961. Application: R-56 Blok A. Propellants: Nitric acid/Kerosene. Thrust(vac): 4,412.000 kN (991,857 lbf). Isp: 320 sec. Isp (sea level): 300 sec. Burn time: 142 sec. Chambers: 1. Country: Russia. Notional engines for polyblock R-56, immense booster/ICBM; planned range 16,000 km. payload 35,000 kg. Tsniimash has 1:10 structural simulation model.
R-56 Blok A used on Rocket Stages
Bibliography:- Placard, Orevo Museum of MAI,