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McCulloch YH-30 MC-4C, Harold A. Skaarup, Alabama
Warbird Survivors 2003: A Handbook on Where to Find Them, Writers Club Press, 2002,
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purchased HERC they improved the design for prospective military use and it became the
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was a two-seat tandem helicopter originally designed by
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28:(HERC). The helicopter first flew in 1948.
26:Helicopter Engineering Research Corporation
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215:Single-engined piston helicopters
210:1940s United States helicopters
33:McCulloch Aircraft Corporation
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80:, March 1948, Popular Science
220:Aircraft first flown in 1948
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205:Tandem rotor helicopters
78:"Cutting 'Copter Costs"
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177:Military
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163:Sedan 4A
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