|In service||1961 - mid-1970s|
|Used by||United States Army|
|Manufacturer||North American Aviation|
|Weight||400 kilograms (880 lb)|
|Length||7.57 metres (24.8 ft)|
|Diameter||30 centimetres (12 in)|
|Wingspan||1.90 metres (6 ft 3 in)|
Marquardt MA-74 ramjet sustainer
|400 kilometres (250 mi)|
|Flight ceiling||18,000 metres (59,000 ft)|
|Speed||Between Mach .09 and Mach 2+|
The MQM-42 Redhead was an American high altitude supersonic drone manufactured by North American Aviation (as model NA-273 Redhead/Roadrunner) used by the U.S. Army for testing and training as a high-performance target for the MIM-23 Hawk air-defense missile system. The Redhead variant was used for high-altitude testing and the Roadrunner for low altitude. The MQM-42 was launched by a Rocketdyne solid-propellant RATO booster, derived from the solid fuel motor for the U.S. Army's Little John battlefield rocket, and was recovered by parachute. NAA manufactured the NA-273 in Columbus, Ohio. The sustainer engine was a Marquardt MA-74 ramjet.
In June 1963, it was designated as MQM-42A.
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