Howard Hughes’ “Spruce Goose” . 29 October 1980, Long Beach, California. The official name for this plane was the H-4 Hercules. It was made of birch, not spruce. Originally meant to supply the military with a transport plane that did not use metal needed for the war efforts during WW II. It made its first and only flight on November 2, 1947.The Hercules is the largest flying boat ever built and has the largest wingspan of any aircraft in history.
The Hughes H-4 Hercules (also known as the "Spruce Goose"; registration NX37602) is a prototype heavy transport aircraft designed and built by the Hughes Aircraft company. The aircraft made its only flight on November 2, 1947, and the project never advanced beyond the single example produced.