Hughes H - 4 Hercules - wikipedia Hughes H - 4 Hercules H - 4 Hercules Role Heavy transport flying boat National origin United States Manufacturer Hughes Aircraft First flight November 2, 1947 Status On display Produced 1947 Number built Unit cost $2,500,000 Career Other name ( s ) Spruce Goose Registration NX37602 Flights Preserved at Evergreen Aviation Museum 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, it was nicknamed by critics the Spruce Goose, although it was made almost entirely of birch. The Hercules is the largest flying boat ever built, and it has the largest wingspan of any aircraft that has ever flown. The aircraft remains in good condition. After being displayed to the public for almost 11 years in Long Beach, California from 1980 to 1991, it is now displayed at the Evergreen Aviation & Space Museum in McMinnville, Oregon, United States. Contents 1 Design and development 2 Operational history 3 Display 4 Specifications ( H - 4 ) 5 Notable appearances in media 6 See also 7 References 7.1 Notes 7.2 Citations 7.3 Bibliography 7.4 Further reading 8 External links Design and development Size comparison between the H - 4 and a Douglas DC - 3 In 1942, the U.S. War Department needed to transport war materiel and personnel to Britain. Allied shipping in the Atlantic Ocean was suffering heavy losses to German U-boats, so a requirement was issued for an aircraft that could cross the Atlantic with a large payload. Wartime priorities meant the aircraft could not be made of strategic materials ( e.g., aluminum ). The aircraft was the brainchild of Henry J. Kaiser, a leading Liberty ship builder and manufacturer. Kaiser teamed with aircraft designer Howard Hughes to create what would become the largest aircraft ever built at that time. The aircraft was designed to carry 150,000 pounds, 750 fully equipped troops or two 30 - ton M4 Sherman tanks. The original designation `` HK - 1 '' reflected the Hughes and Kaiser collaboration. The HK - 1 aircraft contract was issued in 1942 as a development contract and called for three aircraft to be constructed in two years for the war effort. Seven configurations were considered, including twin - hull and single - hull designs with combinations of four, six, and eight wing - mounted engines. The final design chosen was a behemoth, eclipsing any large transport then built. It would be built mostly of wood to conserve metal ( its elevators and rudder were fabric - covered ), and was nicknamed the Spruce Goose ( a name Hughes disliked ) or the Flying Lumberyard. Underside of port wing of the Spruce Goose. While Kaiser had originated the `` flying cargo ship '' concept, he did not have an aeronautical background and deferred to Hughes and his designer, Glenn Odekirk. Development dragged on, which frustrated Kaiser, who blamed delays partly on restrictions placed for the acquisition of strategic materials such as aluminum, and partly on Hughes ' insistence on `` perfection ''. Construction of the first HK - 1 took place 16 months after the receipt of the development contract. Kaiser then withdrew from the project. Rearward view of the Hercules H - 4 's fuselage Hughes continued the program on his own under the designation H - 4 Hercules, signing a new government contract that now limited production to one example. Work proceeded slowly, and the H - 4 was not completed until well after the war was over. The plane was built by the Hughes Aircraft Company at Hughes Airport, location of present - day Playa Vista, Los Angeles, California, employing the plywood - and - resin `` Duramold '' process -- a form of composite technology -- for the laminated wood construction, which was considered a technological tour de force. The specialized wood veneer was made by Roddis Manufacturing in Marshfield, Wisconsin. Hamilton Roddis had teams of young women ironing the ( unusually thin ) strong birch wood veneer before shipping to California. A house moving company transported the airplane on streets to Pier E in Long Beach, California. They moved it in three large sections : the fuselage, each wing -- and a fourth, smaller shipment with tail assembly parts and other smaller assemblies. After Hughes Aircraft completed final assembly, they erected a hangar around the flying boat, with a ramp to launch the H - 4 into the harbor. Howard Hughes was called to testify before the Senate War Investigating Committee in 1947 over the use of government funds for the aircraft. During a Senate hearing on August 6, 1947 ( the first of a series of appearances ), Hughes said : The Hercules was a monumental undertaking. It is the largest aircraft ever built. It is over five stories tall with a wingspan longer than a football field. That 's more than a city block. Now, I put the sweat of my life into this thing. I have my reputation all rolled up in it and I have stated several times that if it 's a failure, I 'll probably leave this country and never come back. And I mean it. In all, development cost for the plane reached $23 million ( equivalent to more than $283 million in 2016 ). Operational history The flight deck of the H - 4, 2010 Hughes returned to California during a break in the Senate hearings to run taxi tests on the H - 4. On November 2, 1947, the taxi tests began with Hughes at the controls. His crew included Dave Grant as copilot, two flight engineers, Don Smith and Joe Petrali, 16 mechanics, and two other flight crew. The H - 4 also carried seven invited guests from the press corps and an additional seven industry representatives. Thirty - six were on board. Four reporters left to file stories after the first two taxi runs while the remaining press stayed for the final test run of the day. After picking up speed on the channel facing Cabrillo Beach the Hercules lifted off, remaining airborne for 26 seconds at 70 ft ( 21 m ) off the water at a speed of 135 miles per hour ( 217 km / h ) for about one mile ( 1.6 km ). At this altitude the aircraft still experienced ground effect. The brief flight proved to detractors that Hughes ' ( now unneeded ) masterpiece was flight - worthy -- thus vindicating the use of government funds. The Spruce Goose, however, never flew again. Its lifting capacity and ceiling were never tested. A full - time crew of 300 workers, all sworn to secrecy, maintained the aircraft in flying condition in a climate - controlled hangar. The company reduced the crew to 50 workers in 1962 and then disbanded it after Hughes ' death in 1976. Display Hercules at Evergreen Aviation Museum. A Douglas DC - 3 has been parked beneath the H - 4 's wing, to show the scale of the H - 4. Hughes H - 4 Hercules at Evergreen Aviation & Space Museum Ownership of the H - 4 was disputed by the U.S. government, which had contracted for its construction. In the mid-1970s, an agreement was reached whereby the Smithsonian Institution 's National Air and Space Museum would receive the Hughes H - 1 Racer and section of the H - 4 's wing, the Summa Corporation would pay $700,000 and receive ownership of the H - 4, the U.S. government would cede any rights, and the aircraft would be protected `` from commercial exploitation. '' In 1980, the Hercules aircraft was acquired by the Aero Club of Southern California, which later put the aircraft on display in a very large geodesic dome next to the Queen Mary ship exhibit in Long Beach, California. The large dome facility became known as the Spruce Goose Dome. The very large enclosed indoor dome area around the Spruce Goose consisted of meeting and special event space, elaborate audio visual displays about Howard Hughes and the Spruce Goose aircraft, and dining areas for tourists. Many convention groups held large dinners, sales meetings, and even concerts under the wings of the aircraft at night when the Spruce Goose Dome was closed to tourists. In 1988, The Walt Disney Company acquired both Long Beach attractions and the associated Long Beach real estate by Pier J. In 1991, Disney informed the Aero Club of Southern California that it no longer wished to display the Hercules aircraft after its highly ambitious Port Disney plan was scrapped. After a long search for a suitable host, the Aero Club of Southern California arranged for the Hughes Hercules flying boat to be given to Evergreen Aviation Museum in exchange for payments and a percentage of the museum 's profits. The aircraft was transported by barge, train, and truck to its current home in McMinnville, Oregon ( about 40 miles ( 60 km ) southwest of Portland ), where it was reassembled by Contractors Cargo Company and is currently on display. The aircraft arrived in McMinnville on February 27, 1993, after a 138 - day, 1,055 - mile ( 1,698 km ) trip from Long Beach. The Spruce Goose geodesic dome is now used by Carnival Cruise Lines as its Long Beach terminal. By the mid-1990s, the former Hughes Aircraft hangars at Hughes Airport, including the one that held the Hercules, were converted into sound stages. Scenes from movies such as Titanic, What Women Want and End of Days have been filmed in the 315,000 - square - foot ( 29,000 m ) aircraft hangar where Howard Hughes created the flying boat. The hangar will be preserved as a structure eligible for listing in the National Register of Historic Buildings in what is today the large light industry and housing development in the Playa Vista neighborhood of Los Angeles. The Western Museum of Flight in Torrance, California has a large collection of construction photographs and blueprints of the Hercules. Specifications ( H - 4 ) This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. ( October 2017 ) Performance specifications are projected. Pratt & Whitney R - 4360 Wasp Major engine 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 ) Performance Cruise speed : 250 mph ( 407.98 km / h ) Range : 3,000 mi ( 4,800 km ) Service ceiling : 20,900 ft ( 6,370 m ) A size comparison between four of the largest aircraft : Hughes H - 4 Hercules ( 1947 ) Antonov An - 225 ( first flight 1988 ) Airbus A380 - 800 ( first flight 2005 ) Boeing 747 - 8 ( first flight 2010 ) Notable appearances in media Main article : Aircraft in fiction § Hughes H - 4 Hercules ( `` Spruce Goose '' ) See also Charles M. Olmsted Ground effect vehicle Koolhoven -- concept 100 ton ( 224,000 lb ) flying boat Aircraft of comparable role, configuration and era Blohm & Voss BV 238 Latécoère 631 Martin JRM Mars Saunders - Roe Princess Related lists List of large aircraft References Notes Jump up ^ The Scaled Composites Stratolaunch has a longer wingspan, but is currently in ground testing ; it has not yet flown. Jump up ^ Quote : `` Kaiser announces the most monumental program in the history of aviation. '' Jump up ^ The Hughes design was initially identified as the HFB - 1 to signify `` Hughes Flying Boat, First Design ''. Jump up ^ The Hughes Corporation had used the duramold process, which laminated plywood and resin into a lightweight but strong building material that could be shaped. Jump up ^ Hughes ' Senate Hearings testimony is now in the public domain. Citations Jump up ^ `` World 's Biggest Plane Makes First Fright ''. Popular Science. Bonnier Corporation. 151 ( 6 ) : 92 -- 93. December 1947. ISSN 0161 - 7370. ^ Jump up to : Parker, Dana T. Building Victory : Aircraft Manufacturing in the Los Angeles Area in World War II, pp. 49 -- 58, Cypress, CA, 2013. ISBN 978 - 0 - 9897906 - 0 - 4. Jump up ^ `` Hughes HK - 1 ( H - 4 ) ' Spruce Goose '. '' The Aviation Zone. Retrieved October 6, 2010. Jump up ^ Spruce Goose. Evergreen Aviation Museum. Retrieved December 14, 2011. Jump up ^ Parker, Dana T. Building Victory : Aircraft Manufacturing in the Los Angeles Area in World War II, p. 55, Cypress, CA, 2013. ISBN 978 - 0 - 9897906 - 0 - 4. Jump up ^ Parker, Dana T. Building Victory : Aircraft Manufacturing in the Los Angeles Area in World War II, pp. 49, 51, Cypress, CA, 2013. ISBN 978 - 0 - 9897906 - 0 - 4. Jump up ^ `` H - 4 Hercules Flying Boat ''. Boeing. 1947 - 11 - 02. Retrieved 2014 - 06 - 24. ^ Jump up to : Odekirk 1982, p. II. ^ Jump up to : McDonald 1981, p. 45. Jump up ^ Odekirk 1982, p. 1V. Jump up ^ McDonald 1981, pp. 41 -- 44. ^ Jump up to : McDonald 1981, p. 40. ^ Jump up to : Winchester 2005, p. 113. ^ Jump up to : McDonald 1981, pp. 58 -- 59. Jump up ^ McDonald 1981, p. 56. Jump up ^ Herman, Arthur. Freedom 's Forge : How American Business Produced Victory in World War II, pp. 277 -- 81, Random House, New York, NY. ISBN 978 - 1 - 4000 - 6964 - 4. Jump up ^ Marshfield women recall building engineering marvels of the skies Archived 2014 - 12 - 17 at the Wayback Machine., Marshfield News Herald Jump up ^ The Great Aviator : Howard Hughes, His Life, Loves & Films -- A Documentary. Los Angeles : Delta Entertainment Corporation, 2004. Jump up ^ `` This Day in History : November 2 ''. HISTORY.com. A&E Television Networks, LLC. Retrieved 14 February 2017. Jump up ^ `` CPI Inflation Calculator ''. Bureau of Labor Statistics, United States Government. Retrieved 14 February 2017. Jump up ^ McDonald 1981, pp. 78 -- 79. Jump up ^ McDonald 1981, pp. 85 -- 87. Jump up ^ Francillon 1990, pp. 100, 102. Jump up ^ `` Wing In Ground effect aerodynamics. '' Archived 2007 - 09 - 27 at the Wayback Machine. se-technology.com. Retrieved : October 6, 2010. Jump up ^ `` Howard Hughes & The Spruce Goose. '' Life, October 27, 2009. Retrieved : August 28, 2011. Jump up ^ Dean, Paul. `` The Man Who Keeps The Spruce Goose. '' Los Angeles Times, April 21, 1983, p. J1. Jump up ^ PROCEEDINGS OF THE ANNUAL MEETING OF THE BOARD OF REGENTS, SMITHSONIAN INSTITUTION, Smithsonian Institution, January 24, 1975, p. 91, For over two years the General Services Administration has been negotiating with Summa Corporation ( formerly the Hughes Tool Co. ) concerning the disposition of the experimental wooden cargo plane known as the `` HK - 1 '' that was constructed by Howard Hughes ' company in the 1940 's under a Government contract. The `` HK - 1 '' is of historic interest, but it is an enormous aircraft presenting major housing and maintenance problems. Within the last few months the Smithsonian has been drawn into these negotiations because of the National Air and Space Museum 's interest in the `` HK - 1 '' and in another aircraft owned by Summa called the `` Hughes Racer. '' GSA, Summa, and SI are now exploring the feasibility of an arrangement whereby GSA will transfer its rights to the `` HK - 1 '' to the Smithsonian, and the Smithsonian will exchange the `` HK - 1 '' with Summa in return for a model of the `` HK - 1 '' suitable for museum display, the `` Hughes Racer, '' and $600,000. Such an arrangement will also settle any dispute between GSA and Summa regarding existing ownership rights in the `` HK - 1 '' and will protect the `` HK - 1 '' from commercial exploitation. Jump up ^ `` Spruce Goose Acquired by NASM ''. Smithsonian Institution Archives. Smithsonian Institution. 1975. Retrieved May 12, 2017. Summary : The National Air and Space Museum acquires the Hughes Flying Boat, HK - 1, `` Spruce Goose, '' from the U.S. General Services Administration. The museum decided to retain a 51 - foot wing section and return the rest of the craft to the builder, the Hughes Tool Company ( now the Summa Corporation ). The Summa Corporation donated $700,000 and the historic Hughes Racer ( in which Howard Hughes established world records in 1935 and 1937 ), and made portions of the aircraft available to eight public museums selected from a list compiled by the Smithsonian. Jump up ^ `` Evergreen Aviation & Space Museum 's future in doubt as creditors claim Spruce Goose, other planes ''. OregonLive.com. Retrieved 2014 - 06 - 24. Jump up ^ Freeman, Paul. `` Hughes Airport. '' Abandoned & Little - Known Airfields : California, Western Los Angeles area, October 10, 2012. Jump up ^ Den Ouden, Alex. `` The aircraft designer Frederik ( Frits ) Koolhoven A gifted and prolific designer ''. Historical engineering and technology, industrial archaeology and history. ALEX DEN OUDEN EINDHOVEN - NEDERLAND. Retrieved 7 September 2015. Bibliography Francillon, René J. McDonnell Douglas Aircraft since 1920 : Volume II. Annapolis, Maryland : Naval Institute Press, 1990. ISBN 1 - 55750 - 550 - 0. McDonald, John J. Howard Hughes and the Spruce Goose. Blue Ridge Summit, Pennsylvania : Tab Books Inc., 1981. ISBN 0 - 8306 - 2320 - 5. Odekirk, Glenn E. Spruce Goose ( Title inside cover : HK - 1 Hercules : A Pictorial History of the Fantastic Hughes Flying Boat ). Long Beach, California : Glenn E. Odekirk and Frank Alcantr, Inc., 1982. No ISBN. Parker, Dana T. Building Victory : Aircraft Manufacturing in the Los Angeles Area in World War II, Cypress, CA, 2013. ISBN 978 - 0 - 9897906 - 0 - 4. Winchester, Jim. `` Hughes H - 4 ' Spruce Goose '. '' Concept Aircraft : Prototypes, X-Planes and Experimental Aircraft. Kent, UK : Grange Books plc., 2005. ISBN 978 - 1 - 59223 - 480 - 6. Further reading David, Peter. The Rocketeer : The Official Movie Adaptation. Burbank, California : WD Publications Inc., 1991. ISBN 1 - 56115 - 190 - 4. Schwartz, Milton L. The Spruce Goose Commemorative Pictorial. Oakland, California : The Wrather Corporation by Mike Roberts Color Productions, 1983. Yenne, Bill. Seaplanes & Flying Boats : A Timeless Collection from Aviation 's Golden Age. New York : BCL Press, 2003. ISBN 1 - 932302 - 03 - 4. `` Look Inside The World 's Largest Plane '' - Popular Science, September 1945 `` World 's Largest Airplane Takes To The Road '' - Popular Science, August 1946 `` 200 tons and it flies ! '' - Popular Mechanics, January 1948 External links Wikimedia Commons has media related to Hughes H - 4 Hercules. Evergreen Aviation Museum, home of the Spruce Goose Vintage photos of Spruce Goose 's construction Hughes Aircraft / Hughes Helicopters Fixed - wing aircraft H - 1 D - 2 / XP - 73 / XA - 37 H - 4 Hercules XF - 11 Experimental helicopters XH - 17 XV - 9 Civil helicopters 269 300 500 530F Military helicopters TH - 55 OH - 6 MH - 6 Defender AH - 64 Communications satellites Intelsat I Syncom TDRS GOES Spacecraft Surveyor 1 Pioneer Venus Avionics / Fire control Hughes MA - 1 AWG - 9 APG - 63 APG - 65 Missiles AIM - 54 AIM - 120 BGM - 71 Howard Hughes Aviation Hughes Aircraft Company Spruce Goose H - 1 Racer Hughes Airwest Trans World Airlines Hughes Helicopters Films directed Hell 's Angels ( 1930 ) The Outlaw ( 1943 ) Films produced Two Arabian Knights ( 1927 ) The Racket ( 1928 ) The Mating Call ( 1928 ) The Front Page ( 1931 ) Cock of the Air ( 1932 ) Sky Devils ( 1932 ) Scarface ( 1932 ) Behind the Rising Sun ( 1943 ) The Sin of Harold Diddlebock ( 1947 ) The Tattooed Stranger ( 1950 ) Vendetta ( 1950 ) His Kind of Woman ( 1951 ) The Whip Hand ( 1951 ) Two Tickets to Broadway ( 1951 ) Macao ( 1952 ) The Las Vegas Story ( 1952 ) Second Chance ( 1953 ) The French Line ( 1954 ) Son of Sinbad ( 1955 ) The Conqueror ( 1956 ) Jet Pilot ( 1957 ) Popular culture Melvin and Howard ( 1980 ) The Aviator ( 2004 ) Rules Do n't Apply ( 2016 ) Related Jean Peters ( wife ) Howard R. Hughes Sr. ( father ) Hughes Tool Company Howard Hughes Medical Institute Desert Inn Melvin Dummar Summa Corporation Howard Hughes Corporation Coordinates : 45 ° 12 ′ 14 '' N 123 ° 08 ′ 42 '' W ﻿ / ﻿ 45.204 ° N 123.145 ° W ﻿ / 45.204 ; - 123.145 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Hughes_H-4_Hercules&oldid=865455961 '' Categories : Flying boats Howard Hughes Hughes aircraft United States military transport aircraft 1940 -- 1949 Eight - engined tractor aircraft High - wing aircraft Hughes Aircraft Company Aircraft first flown in 1947 Individual aircraft Hidden categories : Webarchive template wayback links All articles with unsourced statements Articles with unsourced statements from October 2014 Articles needing additional references from October 2017 All articles needing additional references Coordinates on Wikidata Talk Contents About Wikipedia Afrikaans Asturianu Català Čeština Deutsch Ελληνικά Español Euskara Français Frysk 한국어 Hrvatski Italiano עברית Lietuvių Magyar Nederlands 日本 語 Norsk Norsk nynorsk ਪੰਜਾਬੀ Polski Português Română Русский Slovenščina Suomi Svenska Тоҷикӣ Türkçe Tiếng Việt 中文 24 more Edit links This page was last edited on 24 October 2018, at 02 : 21 ( UTC ). Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what was the spruce goose made out of
Answer: almost entirely of birch