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D-1
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Designer: Kosberg. Developed in: 1955-56. Propellants: Isopropylnitrate. Thrust(vac): 39.000 kN (8,767 lbf). Isp (sea level): 210 sec. Chambers: 1. Chamber Pressure: 35.30 bar. Country: Russia. Status: Developed 1955-56. Second thrust level at 50%. Explosion of D-1 on test bench in 1956 forced stop of work with mono-propellant OT-152. Sea level thrust 39 kN.
Bibliography and Further Reading - Golubev, A A, KB KhimAvtomatiki - Straniy Istorii, Vol. 1, Voronezh 1995 via Dietrich Haeseler.
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