KNOWPIA
WELCOME TO KNOWPIA
Marquardt MA-74 
Summary
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 edit
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 edit
- MA-74-ZAB
- North American MQM-42[1]
Specifications (XPJ40-MD-2) edit
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
- Maximum thrust: 1,790 lbf (8,000 N)
- Thrust-to-weight ratio: 16.3
References edit
Citations edit
Bibliography edit
- 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.