Wright XRJ47-W-5 ramjet
Wright XRJ47-W-5 is a flight-weight historical ramjet evaluated by NASA Lewis in a free-jet altitude chamber at inlet Mach 2.75. NASA's 1950s Propulsion Systems Laboratory image captions and technical-history sources identify the XRJ47-W-5 as a Wright Aeronautical engine; a current NASA narrative uses Pratt & Whitney wording for the Navaho ramjets, so the sources are not uniform on the manufacturer attribution. The documented test programme covered performance, burner-shell cooling, liner durability, and ignition characteristics.
Identity
- Aliases
- XRJ47-W-5XRJ47Wright XRJ47-W-5
- Domains
- aviation
- Identity Level
- model
- Kind
- ramjet
- Name
- Wright XRJ47-W-5 ramjet
- Status
- historical
Details
- Description
- Wright XRJ47-W-5 is a flight-weight historical ramjet evaluated by NASA Lewis in a free-jet altitude chamber at inlet Mach 2.75. NASA's 1950s Propulsion Systems Laboratory image captions and technical-history sources identify the XRJ47-W-5 as a Wright Aeronautical engine; a current NASA narrative uses Pratt & Whitney wording for the Navaho ramjets, so the sources are not uniform on the manufacturer attribution. The documented test programme covered performance, burner-shell cooling, liner durability, and ignition characteristics.
- Family
Links
- Official Url
- https://ntrs.nasa.gov/citations/19660027126
Assets & Meta
- Creation Time
- September 7, 2026 at 21:05:11 UTC
- Updated Time
- September 7, 2026 at 21:27:29 UTC
Other
- Search Name
- Wright XRJ47-W-5 ramjet XRJ47-W-5 XRJ47 Wright XRJ47-W-5
- Sources
- Accessed Date
- 2026-09-07
- Note
- NASA NACA research memorandum documenting the flight-weight XRJ47-W-5 free-jet evaluation, performance, cooling, durability, and ignition work.
- Publisher
- NASA Technical Reports Server
- Title
- Preliminary evaluation of flight-weight XRJ47-W-5 ram-jet engine at a Mach number of 2.75
- Accessed Date
- 2026-09-07
- Note
- NASA image caption identifies a Wright Aeronautical XRJ47-W-5 ramjet installed in the NACA Propulsion Systems Laboratory.
- Publisher
- NASA
- Title
- NASA Glenn: 1952–1957 Images
- Accessed Date
- 2026-09-07
- Note
- NASA timeline captions identify the Wright XRJ47-W5 in the Propulsion Systems Laboratory.
- Publisher
- NASA
- Title
- Propulsion Systems Laboratory - Timelines
- Accessed Date
- 2026-09-07
- Note
- NASA technical history identifies Wright specifications and XRJ47-W5 installation in the Navaho propulsion context.
- Publisher
- NASA
- Title
- Pursuit of Power
- Accessed Date
- 2026-09-07
- Note
- Air Force history identifies two Wright Aeronautical XRJ47-W-5 ramjets powering the Navaho II XSM-64 and distinguishes the later XRJ47-W-9 configuration.
- Publisher
- U.S. Air Force - Robins Air Force Base
- Title
- Flashback: The Navaho Missile: Part 2
- Accessed Date
- 2026-09-07
- Note
- The current NASA narrative uses Pratt & Whitney wording for Navaho ramjets while adjacent image captions identify Wright XRJ47-W-5; this is retained as an explicit source conflict.
- Publisher
- NASA
- Title
- Propulsion Systems Laboratory - Missiles and Turbojets