Hughes H-4 Hercules

  • $25.00
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Embedded Object Blanks
ORIGINAL Cloth and Wood
from the Spruce Goose!

Sierra 27/64" blanks are $25 each
JR 12.5mm with 2-1/4"x 3/4" wood blank are $55 each

5" x 3/4" short blanks are $95 each
2-1/2" x 3/4" short blanks are $50 each
Extra COAs are $2 each

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with foil COA seal.


The Hughes H-4 Hercules (also 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 transatlantic flight transport for use during World War II, it was not completed in time to be used in the war. The aircraft made only one brief flight on November 2, 1947, and the project never advanced beyond the single example produced.

Built from wood because of wartime restrictions on the use of aluminum and concerns about weight, the aircraft was nicknamed the Spruce Goose by critics, although it was made almost entirely of birch. The Hercules is the largest flying boat ever built, and it had the largest wingspan of any aircraft that had ever flown until the Scaled Composites Stratolaunch first flew on April 13, 2019. The aircraft remains in good condition. After having been displayed to the public in Long Beach, California, from 1980 to 1991, it is now on display at the Evergreen Aviation & Space Museum in McMinnville, Oregon, United States.

General characteristics

  • Crew: three

  • Length: 218 ft 8 in (66.65 m)

  • Wingspan: 320 ft 11 in (97.54 m)

  • Height: 79 ft 4 in (24.18 m)

  • Fuselage height: 30 ft (9.1 m)

  • Empty weight: 250,000 lb (113,399 kg)

  • Loaded weight: 400,000 lb (180,000 kg)

  • Powerplant: 8 × Pratt & Whitney R-4360 Wasp Major radial engines, 3,000 hp (2,640 kW) each

  • Propellers: four-bladed Hamilton Standard, prop, one per engine

  • Propeller diameter: 17 ft 2 in (5.23 m)


  • Cruise speed: 250 mph (407.98 km/h)

  • Range: 3,000 mi (4,800 km)

  • Service ceiling: 20,900 ft (6,370 m)


  • Role: Heavy transport flying boat

  • National origin: United States

  • Manufacturer: Hughes Aircraft

  • First flight: November 2, 1947

  • Status: On display

  • Produced: 1947

  • Number built: 1

  • Unit cost: $2.5 million

  • Other name: Spruce Goose

  • Registration: NX37602

  • Flights: 1

  • Preserved at Evergreen Aviation & Space Museum

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