Warplanes of the USA: Hughes HK-1/H-4 Hercules “Spruce Goose”

Hughes HK-1/H-4 Hercules “Spruce Goose”, Evergreen Aviation & Space Museum, McMinnville, Oregon (Hughes Photo) Hughes HK-1/H-4 Hercules (Serial No. 1), “Spruce Goose”, Reg. No. N37602. The Hughes H-4 Hercules (commonly known as the Spruce Goose; registration NX37602) is a prototype strategic airlift flying boat designed and built by the Hughes Aircraft Company. Intended as a … Read more