Accession Number:

AD0871088

Title:

Altitude Developmental Testing of the J-2S Rocket Engine in Rocket Development Test Cell (J-4) (Tests J4-1001-08 through -10 and J4-1001-12 through -14)

Descriptive Note:

Interim rept. 2 Sep-15 Oct 1969

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

• Kunz, C. H.
• Saunders, J. F.

Report Date:

1970-06-01

Pagination or Media Count:

121.0

Abstract:

Ten idle-mode firings of the J-2S rocket engine SN J-112 were conducted during test periods J4-1001-08 through J4-1001-10, and J4-1001-12 through J4-1001-14 between September 2 and October 15, 1969, in Rocket Development Test Cell J-4 of the Engine Test Facility. The primary objectives of these firings were to determine engine idle-mode operating characteristics at various engine mixture ratios utilizing a new noncompartmented injector. Engine performance, as indicated by characteristic velocity, was 120 percent higher than experienced with previous compartmented injector designs at nominal pump inlet conditions. Total accumulated engine idle-mode operation was 1408.2 sec.

Descriptors:

• *LIQUID PROPELLANT ROCKET ENGINES
• ALTITUDE CHAMBERS
• CAPTIVE TESTS
• CONTROLLABLE THRUST ROCKET ENGINES
• CRYOGENIC PROPELLANTS
• FUEL INJECTION
• FUEL INJECTORS
• HIGH ALTITUDE
• HYDROGEN
• INTERIOR BALLISTICS
• LAUNCH VEHICLES
• MIXTURES
• OXYGEN
• PERFORMANCE(ENGINEERING)
• PRESSURE
• PROPELLANT CONTROL
• SIMULATION
• TEMPERATURE
• TURBOPUMPS
• VELOCITY

Subject Categories:

• Liquid Propellant Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE