Marquardt MA-74

The Marquardt MA-74 was a ramjet engine built by the Marquardt Corporation for use in supersonic target drones in the 1960s.

Marquardt MA-74
Type Ramjet
National origin United States
Manufacturer Marquardt Corporation
Major applications North American MQM-42

History

The MA-74 was developed by Marquardt for use as a powerplant for high-speed target drones;[1] its primary use was in the North American Redhead and Roadrunner.[2] A nacelle-type ramjet, it used a normal shock inlet, and was designed to be mounted on top of the aircraft; fuel was ordinary JP-4.[1]

Variants and applications
MA-74-ZAB
North American MQM-42[1]

Specifications (XPJ40-MD-2)

Data from Haggerty 1966[1]

General characteristics
  • Type: Ramjet
  • Length: 90.7 inches (2,300 mm)
  • Diameter: 16.5 inches (420 mm)
  • Dry weight: 110 pounds (50 kg)

Components
  • Compressor: None
  • Fuel type: JP-4

Performance

References

Citations
  1. Haggerty 1966, p. 480.
  2. Parsch 2007

Bibliography
  • Haggerty, James J. (1966). he 1966 Aerospace Year Book (44th ed.). Arlington, VA: Aerospace Industries Association of America. ASIN B000CBCHOY.
  • Parsch, Andreas (1 July 2007). "North American MQM-42 Redhead/Roadrunner". Directory of U.S. Military Rockets and Missiles. Designation-Systems. Retrieved 2017-12-19.
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