Today marks 77 years since the Hughes H-4 Hercules, better known as the “Spruce Goose,” took its first and only flight in 1947! The world’s largest flying boat was built primarily with birch wood due to weight concerns and wartime aluminum restrictions. Visit the Evergreen Aviation & Space Museumin McMinnville, Oregon, to experience this historic aircraft in person! #Aviation #Avgeek #FirstFlight #AviationHistory | EAA - The Spirit of Aviation