This page no longer updated from 31 October 2001. Latest version can be found at KTDU-417-B

Manufacturer Name: KTDU-417-B. Government Designation: 11D417B. Designer: Isayev. Application: Luna 15-24 low thrust engine in system KTDU-417. Used on spacecraft: Luna Ye-8, Luna Ye-8-5, Luna Ye-8-5M, Luna Ye-8-LS. Propellants: N2O4/UDMH Thrust(vac): 350 kgf. Thrust(vac): 3.43 kN. Isp: 254 sec. Burn time: 30 sec. Chambers: 2. Chamber Pressure: 8.90 bar. Oxidizer to Fuel Ratio: 2.40. Country: Russia. Status: Out of Production. References: 321 , 329 , 342 . Comments: Pressure-fed engine. Used as low thrust engine in system KTDU-417 for soft-landing. Could be throttled to 2.06 kN/2440 m/s.See entry KTDU-417.
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Last update 12 March 2001.
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© Mark Wade, 2001 .