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Gasuden Koken
https://en.wikipedia.org/wiki/Gasuden_Koken
The Gasuden Koken (also known as the Koken-ki (???)) was a Japanese long-range research aircraft of the 1930s. It was built by the Tokyo Gas and Electric Industry (also known as Gasuden), to break the world record for longest flight, setting a closed circuit world record of 11,651 km (7,240 mi) in March 1938. In 1931, the Aeronautical Research Institute of the Tokyo Imperial University commenced studies to design an aircraft to break the world closed-circuit distance record, gaining a grant from the Japanese Diet or parliament to finance the project. Initial design was completed in August 1934, and the Tokyo Gas and Electric Company (also known as Gasuden) was selected to build the aircraft, despite the fact that it had only limited resources, and had previously only built small numbers of wooden light aircraft. The design produced by the Aeronautical Research Institute and Gasuden was a single-engined low-wing cantilever monoplane with retractable undercarriage. It was of all-metal construction, with fabric-covered outer wings and control surfaces. While it was originally intended to be powered by a diesel engine, this proved impracticable, and in the end a modified version of the German BMW VIII gasoline-fuelled engine, license-built by Kawasaki, was chosen. Construction was slow, and the aircraft was not completed until March 1937. It was first flown on 25 May 1937, piloted by Major Yuzo Fujita of the Imperial Japanese Army. Role Long range research aircraft National origin Japan Manufacturer Gasuden First flight 25 May 1937 Number built 1 Specifications General characteristics Crew: three Length: 15.06 m (49 ft 5 in) Wingspan: 27.93 m (91 ft 7¾ in) Height: 3.60 m (11 ft 9¾ in) Wing area: 87.3 m² (939.7 sq ft) Empty weight: 4,225 kg (9,314 lb) Loaded weight: 9,216 kg (20,317 lb) Powerplant: 1 × Kawasaki built BMW VIII water-cooled V12 engine, 715 hp (533 kW) Performance Maximum speed: 250 km/h (135 knots, 155 mph) at sea level Cruise speed: 211 km/h (114 knots, 131 kmg) at 2,000 m (6,600 ft) Range: 11,651.011 km (6,295.29 nmi, 7,239.58 mi) Service ceiling: 3,410 m (11,200 ft) * |
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