Short K.F.1

In 1929 he visited rochesterskou factory of the company Short Brothers chief engineer of the japanese company Kawanishi Jošio Hašiguči. The japanese navy at that time was looking for new fast patrol flying-boat with long-range as a replacement for the outgoing F.5. Hašigučimu were in Rochester shown flying boats Singapore And and Calcutta, and especially Calcutta he fell into the eye. Its major drawback, however, was in the engines of the Bristol Jupiter, the production of which was owned by the license competitor to Kawanishi, the company Nakajima. The japanese have had but experience with engines Rolls-Royce Eagle, which were used on their Felixstowech, and the company Rolls-Royce therefore has offered its new Buzzardy, which Hašiguči found appropriate.

The result was a machine marked as a To.F.1, which generally looked like the Rangoon, but was considerably larger, with a wingspan of 30,73 m and a total mass of 17690 kg compared to 28,35 m and 10886 kg Rangoon. The wings were all-metal, with aluminum beams, the engines were mounted in nacelles limit of wings with a vertical heatsink between each of the gondola and the upper wing. On the upper and the lower wing was a wings type of Frise, and the middle part of the wings occupied the protruding fuel tank on the content sufficient for požadoaný a range of 2000 miles. The tail surfaces consisted of a simple vertical surfaces with a balanced rudder and from the middle of the fixed horizontal surfaces with a variable angle of attack, which was also two small auxiliary rudder designed for the suppression of the racking to the side in case of engine failure. As with Singapore it was the lower part of the torso formed by a shell of stainless steel sheet. Spaces for the crew consisted of the two open cockpits next to each other in the bow, the workplace mechanics and radio operators, dining rooms, kitchens and other space needed for the eight-member crew during long-haul flight. The defense provided the guns on the bow, at the stern for the rudder and two on the back, each equipped with a machine gun Lewis on the associated circle Scarff.

To.F.1 first flew in Rochester 10. October 1930, no longer with the company designation of M-2 on the sides and with the japanese Hinomaru, piloted by John Parker. After company tests still passed the tests at the station the navy in Felixstowe, where also in December for the Kawanishi received a Certificate of letuschopnosti and then was the boat transported to Japan. A group of employees of a company Short, led by C. P. T. Lipscombem machine accompanied by Narua, where she helped with his znovusestavením and also zalétáním - F.To.1 in Japan for the first time took off 8. may 1931, once again with Parker behind the wheel. Shortly afterwards was F.To.1 accepted Kawanishi to the license production, which has led to the construction of only four specimens under the name H3K1, meant but for Kawanishi gain important experience, which amply used in the design and construction of the flying boats used in world war ii, as were H6K Mavis, H8K Emily and after all, even to this day built machine series the Shin Meiwa PS-1/US-2. To.F.1 probably lived alongside their license brothers in the service at the Takejama Kokutai..

http://www.airwar.ru/enc/flyboat/h3k.html
www.secretprojects.co.uk

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