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Engine Model: RDMT-400. Government Designation: 11D458. Designer: NII Mash. Application: Almaz, Kvant, Kristall, Spektr, Priroda. Propellants: N2O4/UDMH. Thrust(vac): 400 N (80 lbf). Isp: 255 sec. Mass Engine: 2.50 kg (5.50 lb). Chambers: 1. Chamber Pressure: 9.00 bar. Thrust to Weight Ratio: 16.40. Country: Russia. Status: In Production.

Low-thrust attitude control thruster. Used in Isayev 11D458 engine.

Engine Model: RDMT-400 X. Designer: NII Mash. Propellants: N2O4/UDMH. Thrust(vac): 400 N (80 lbf). Isp: 296 sec. Mass Engine: 0.13 kg (0.28 lb). Chambers: 1. Chamber Pressure: 30.00 bar. Thrust to Weight Ratio: 328.00. Country: Russia. Status: Developed 1980's.

Experimental low-thrust thruster. Carbon combustion chamber. Mass may be chamber only.

Engine Model: RDMT-400A. Designer: NII Mash. Propellants: N2O4/UDMH. Thrust(vac): 400 N (80 lbf). Isp: 290 sec. Mass Engine: 2.80 kg (6.10 lb). Chambers: 1. Thrust to Weight Ratio: 14.64. Country: Russia. Status: Developed 1980's.

Experimental low-thrust thruster. Niobium combustion chamber with coating.

Bibliography:

  • Haeseler, Dietrich, Datasheets from NII Mashinostroeniye, Nishnaya Salda, 1992 via Dietrich Haeseler.
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