Engine Model: RD-0750. Manufacturer Name: RD-0750. Other Designations: RD-0650TF. Designer: Kosberg. Developed in: 1997-. Application: Alternative for Angara central stage, MAKS. Propellants: Lox/Kerosene/LH2. Thrust(vac): 1,412.000 kN (317,430 lbf). Throttled thrust(vac): 794.600 kN (178,633 lbf). Isp: 455 sec. Isp (sea level): 415 sec. Chambers: 1. Chamber Pressure: 190.00 bar. Oxidizer to Fuel Ratio: 4.00. Country: Russia. Status: Developed 1997-. Tripropellant derivative of RD-0120. Some components tested in RD-0120TD technology demonstration in cooperation with Aerojet. Two modes: LOX/LH2-Kerosene and LOX/LH2. Chamber pressure 190 / 85 bar. O:F ratio 4.0 / 6.0. The original source gave different thrust and specific impulse items. Those shown here are from the 2007 KBKhA web site (original values thrust 1720 kN / 780 kN, specific impulse 418 sec / 451sec.
Bibliography:- Russian Arms Catalogue, Vol 5 and 6, Military Parade, Moscow via Dietrich Haeseler.
- Novosti kosmonavtiki, Issues. 21-22, 1998 via Dietrich Haeseler.
- KBKhA Web Site, Web Address when accessed: http://www.kbkha.ru/.