S5.92 burns a hypergolic mixture of UDMH and nitrogen tetroxide in the gas-generator cycle. It has two throttle settings. The highest produces 19.61 kilonewtons (4,410 lbf) of thrust, a specific impulse of 327 seconds, and a 3-second ignition transient. The lower throttle level produces 13.73 kilonewtons (3,090 lbf) of thrust, specific impulse of 316 seconds, and a 2.5 second ignition transient. It is rated for 50 ignitions, and 300 days between ignitions.[1]
russian, rocket, engine, currently, used, fregat, upper, stage, country, originussrfirst, flight1988, 07designerkb, khimmashapplicationupper, stageassociated, lvsoyuz, zenitstatusin, productionliquid, fuel, enginepropellantn2o4, udmhmixture, ratio2, 0cyclegas,. The S5 92 is a Russian rocket engine currently used on the Fregat upper stage S5 92Country of originUSSRFirst flight1988 07 07DesignerKB KhIMMASHApplicationUpper StageAssociated LVSoyuz ZenitStatusIn ProductionLiquid fuel enginePropellantN2O4 UDMHMixture ratio2 0CycleGas GeneratorConfigurationChamber1PerformanceThrust vacuum19 61 kilonewtons 4 410 lbf Chamber pressure9 61 megapascals 1 394 psi Specific impulse vacuum327 secondsBurn time2 000 secondsDimensionsLength1 028 millimetres 40 5 in Diameter838 millimetres 33 0 in max Dry weight75 kilograms 165 lb Used inFregat and Phobos programReferencesReferences 1 2 3 4 Contents 1 Design 2 History 3 See also 4 References 5 External linksDesign editS5 92 burns a hypergolic mixture of UDMH and nitrogen tetroxide in the gas generator cycle It has two throttle settings The highest produces 19 61 kilonewtons 4 410 lbf of thrust a specific impulse of 327 seconds and a 3 second ignition transient The lower throttle level produces 13 73 kilonewtons 3 090 lbf of thrust specific impulse of 316 seconds and a 2 5 second ignition transient It is rated for 50 ignitions and 300 days between ignitions 1 History editIt was originally designed by the famous A M Isayev Chemical Engineering Design Bureau for the two spacecraft of the Phobos program While the Mars missions were unsuccessful the spacecraft manufacturer NPO Lavochkin found a market niche for the technology Thus the engine was adapted for use on the optional Fregat upper stage of the Soyuz and Zenit launch vehicles 1 4 See also editFregat The upper stage that is powered by the S5 92 Soyuz A medium lift rocket that uses the Fregat stage Zenit 3F A heavy lift rocket that uses the Fregat stage References edit a b c Engines S5 221 and S5 92 The upper stage Fregat in Russian KB Khimmash Archived from the original on 23 April 2013 KVD 1 amp S5 92 Brochure PDF KB KhIMMASH 1998 10 13 Retrieved 2015 08 03 Brugge Norbert Spacecraft propulsion blocks KDU from Isayev s design bureau now Khimmash B14643 de Archived from the original on 2015 06 02 Retrieved 2015 06 02 a b Zak Anatoly Fregat space tug RussianSpaceWeb Retrieved 2015 06 02 External links editKB KhIMMASH Official Page in Russian Archived 2016 03 20 at the Wayback Machine NPO Lavochkin Fregat Page in Russian nbsp This rocketry article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title S5 92 amp oldid 1178609042, wikipedia, wiki, book, books, library,
