Garrett (HRE) (ARJ-1) Hypersonic Scramjet Research Engine
Object Details
- Manufacturer
- Garrett Corporation
- Physical Description
- Type: Scramjet
- Performance: 4,000 to 2,000 sec internal specific impulse (min.); 3,200 to 8,640 km/hr (2,000 to 5,400 mph)
- Summary
- Computerized analysis of supersonic combustion phenomena and ramjet cooling led to Garrett being awarded a 1965 contract by NASA for preliminary design of a Mach 3 to 8 research ramjet for flight-testing on the North American X-15. In that same year, a full-scale hydrogen fueled boiler-plate engine successfully demonstrated both subsonic and supersonic combustion.
- In 1967, Garrett was awarded a follow-on contract to manufacture flightweight hypersonic research engines (HRE). This supersonic combustion ramjet (scramjet) was constructed during that program as a Mach 3 to 8 demonstrator. Utilizing hydrogen as both a fuel and a coolant was required because inlet temperatures exceeded 2,316 C (4,200 F) and exhaust temperatures exceeded 2,927 C (5,300 F).
- After the 1968 retirement of the X-15 aircraft, the program was reoriented toward ground tests. Delivered in 1970, the engine ran in NASA Langley's Scramjet Test Facility at speeds up to Mach 7, 7,560 km/hr (4,725 mph), completing a major step toward hydrogen-fuel hypersonic propulsion systems.
- Credit Line
- Transferred from the NASA Langley Research Center, Hampton, Virginia
- Circa 1970
- Inventory Number
- A19760013000
- Restrictions & Rights
- Usage conditions apply
- Type
- PROPULSION-Turbines (Jet)
- Materials
- Primary structure was fabricated from Hastelloy X sheet 0.015 in. thick and brazed with gold-palladium-nickel alloy; Steel, Stainless Steel, White metal alloy, Aluminum, Plastic
- Dimensions
- Length 229 cm (90 in.), Diameter 71 cm (28 in.) (dimensions are approximate)
- Country of Origin
- United States of America
- See more items in
- National Air and Space Museum Collection
- National Air and Space Museum
- Record ID
- nasm_A19760013000
- Metadata Usage (text)
- Not determined
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/nv9f68d0c84-4411-47d6-9306-a39a88058c79