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Marquardt MA-74
From Wikipedia, the free encyclopedia
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The Marquardt MA-74 was a ramjet engine built by the Marquardt Corporation for use in supersonic target drones in the 1960s.
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
- Maximum thrust: 1,790 lbf (8,000 N)
- Thrust-to-weight ratio: 16.3
References
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