- Hughes H4 Hercules 'Spruce Goose'
- United States (Long Beach Harbor)
The aircraft with the largest wingspan ever constructed is the Hughes H4 Hercules flying boat, more commonly known as the Spruce Goose. The eight-engined 193-tonne aircraft has a wing span of 97.51 m (319 ft 11 in) and a length of 66.65 m (218 ft 8 in). It was raised 21.3 m (70 ft) into the air in a test run of 914 m (3,000 ft) , piloted by Howard Hughes (1905-76), off Long Beach Harbor, California, USA on 2 November 1947, but never flew again.
The Hughes H4 Hercules flying boat largest wingspan of any aircraft.