Wright XRJ47 ramjet family
Wright XRJ47 is a historical family of large ramjets developed for the North American Navaho program. NASA records the flight-weight XRJ47-W-5's free-jet altitude testing, while NACA data cover the heavy-duty XRJ47-W-9 and the U.S. Air Force records the W-9 as the intended engine for the later XSM-64A. NASA sources are not uniform on manufacturer wording; this family entry preserves the Wright Aeronautical attribution supported by the technical and archival sources.
Identity
- Aliases
- XRJ47 familyWright XRJ47 family
- Domains
- aviation
- Identity Level
- family
- Kind
- ramjet
- Name
- Wright XRJ47 ramjet family
- Status
- historical
Details
- Description
- Wright XRJ47 is a historical family of large ramjets developed for the North American Navaho program. NASA records the flight-weight XRJ47-W-5's free-jet altitude testing, while NACA data cover the heavy-duty XRJ47-W-9 and the U.S. Air Force records the W-9 as the intended engine for the later XSM-64A. NASA sources are not uniform on manufacturer wording; this family entry preserves the Wright Aeronautical attribution supported by the technical and archival sources.
Links
- Official Url
- https://ntrs.nasa.gov/citations/19660027126
Assets & Meta
- Creation Time
- September 7, 2026 at 21:25:28 UTC
- Updated Time
- September 7, 2026 at 21:25:28 UTC
Other
- Search Name
- Wright XRJ47 ramjet family XRJ47 family Wright XRJ47 family
- Sources
- Accessed Date
- 2026-09-07
- Note
- NASA NACA research memorandum documents the flight-weight XRJ47-W-5 free-jet evaluation at inlet Mach 2.75, including 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 NACA research memorandum documents heavy-duty XRJ47-W-9 combustion, fuel, ignition, and operating-limit tests in a Mach 2.75 free-jet facility.
- Publisher
- NASA Technical Reports Server
- Title
- Comparison of the Combustion Performance of Shell UMF, Grade C, MIL-F-5624C, Grade JP-5, Fuels in a Heavy-Duty XRJ47-W-9 Ram-Jet Engine
- Accessed Date
- 2026-09-07
- Note
- NASA technical history describes the XRJ47 test programme and the Wright Aeronautical 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 for XSM-64 and the more powerful XRJ47-W-9 planned for XSM-64A.
- Publisher
- U.S. Air Force - Robins Air Force Base
- Title
- Flashback: The Navaho Missile: Part 2
- Accessed Date
- 2026-09-07
- Note
- NASA image captions identify a Wright Aeronautical XRJ47-W-5 ramjet in the NACA Propulsion Systems Laboratory.
- Publisher
- NASA
- Title
- NASA Glenn: 1952–1957 Images
- Accessed Date
- 2026-09-07
- Note
- The current NASA narrative uses Pratt & Whitney wording for Navaho ramjets while the adjacent image captions identify Wright XRJ47-W-5; the attribution is retained as an explicit source conflict.
- Publisher
- NASA
- Title
- Propulsion Systems Laboratory - Missiles and Turbojets