Fourteen firings of the Rocketdyne J-2S rocket engine (S/N J-115) were conducted during test periods J4-1001-16 through -20 between March 10 and May 19, 1970. The major objectives of these tests were: (1) development of a throttling capability using a variable-position tapoff valve for thrust control; (2) demonstration of satisfactory idle-mode operation (both pre- and post-main stage) over a wide range of fuel and oxidizer pump inlet pressures; (3) determine the suitability of the S-IVB propellant recirculation system to prefire condition propellants and prechill engine propellant pumps; and (4) determine steady-state engine performance during main-stage operation. All major objectives were satisfactorily accomplished. (Author)
Altitude Developmental Testing of the J-2S Rocket Engine in Rocket Development Test Cell J-4 (Tests J4-1001-16 through -20)
1970
102 pages
Report
Keine Angabe
Englisch
Rocket Engines & Motors , Liquid propellant rocket engines , Captive tests , High altitude , Altitude chambers , Throttling , Thrust , Staging , Duct inlets , Liquid rocket fuels , Liquid rocket oxidizers , Turbopumps , Pressure , Propellant control , Combustion chamber gases , Launch vehicles , Controllable-thrust rocket motors , J-2s engines , J-2 engines , Saturn(Booster) , S-4b stages