McCulloch Aircraft Corporation

The McCulloch Aircraft Corporation was the aircraft division of the McCulloch Motors Corporation. McCulloch acquired Helicopter Engineering Research Corp in 1951. It manufactured two innovative helicopter designs – the tandem-rotor MC-4 and the J-2 autogyro. Rights to the twin-rotor MC-4 was sold back to the original designer, Drago Jovanovich, in 1957. Rights to the J-2 autogyro were sold to Aero Resources (Gardena, California) in 1974. References 
 
 https://web.archive.org/web/20090108062245/http://www.shanaberger.com/mcculloch.htm

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Defunct aircraft manufacturers of the United States
Defunct helicopter manufacturers of the United States