Fourteen firings of the Rocketdyne J-2 rocket engine performed in Test Cell J-4 of the Large Rocket Facility, using modified augmented spark igniter propellant supply lines, are reported herein. These firings were accomplished during test periods J4-1801-39 through J4-1801-41 at pressure altitudes ranging from 88,000 to 109,000 ft at engine start. These were the initial firings at simulated altitude conditions, all related to Saturn V/S-IVB conditions, incorporating engine modifications that were performed as a result of malfunctions that occurred during the flight of vehicle AS-502 on April 4, 1968. Engine start transient evaluations, augmented spark igniter propellant line strain data, engine steady-state and transitory vibration data, and calculated engine steady-state performance data are included. Satisfactory engine operation and augmented spark igniter operation were obtained. The accumulated firing duration was 181.7 sec. (Author)
Altitude Developmental Testing of the J-2 Rocket Engine in Propulsion Engine Test Cell (J-4) (Tests J4-1801-39 through J4-1801-41)
1969
265 pages
Report
No indication
English
Rocket Engines & Motors , Liquid propellant rocket engines , Altitude chambers , Spark ignition , Vibration , Strain(Mechanics) , Captive tests , Liquefied gases , Oxygen , Hydrogen , Liquid rocket oxidizers , Combustion chambers , Turbopumps , Fuel injectors , Gas generating systems , Liquid rocket propellants , Propellant tanks , J-2 engines , Saturn launch vehicles