Howard Hughes built the H-4 Hercules.
Howard Hughes . He spent the rest of the 1930s setting multiple world air speed records and building the Hughes H-1 Racer and H-4 Hercules ( the `` Spruce Goose '' ) . Hughes Aircraft Company . The company was known for producing , among other products , the Hughes H-4 Hercules `` Spruce Goose '' aircraft , the atmospheric entry probe carried by the Galileo spacecraft , and the AIM-4 Falcon guided missile .