Název: Name: | Kaibo Gikai KB - Experimentální létající člun | Kaibo Gikai KB Experimental Flying-boat |
Originální název: Original Name: | 海防義会KB飛行艇 | |
Kategorie: Category: | experimentální letoun | experimental aeroplane |
Výrobce: Producer: | DD.MM.1924-DD.12.1924 Yokosuka Naval Arsenal, Yokosuka | |
Období výroby: Production Period: | DD.09.1922-DD.12.1924 | |
Vyrobeno kusů: Number of Produced: | 1 | |
První vzlet: Maiden Flight: | DD.MM.1925 | |
Osádka: Crew: | 4 | |
Základní charakteristika: Basic Characteristics: | ||
Vzlet a přistání: Take-off and Landing: | CTOL - konvenční vzlet a přistání | CTOL - conventional take-off and landing |
Uspořádání křídla: Arrangement of Wing: | jednoplošník | monoplane |
Uspořádání letounu: Aircraft Concept: | klasické | conventional |
Podvozek: Undercarriage: | pevný | fixed |
Přistávací zařízení: Landing Gear: | člunový trup | flying boat |
Technické údaje: Technical Data: | ||
Hmotnost prázdného letounu: Empty Weight: | 2012 kg | 4436 lb |
Vzletová hmotnost: Take-off Weight: | 3086 kg | 6803 lb |
Maximální vzletová hmotnost: Maximum Take-off Weight: | ? kg | ? lb |
Rozpětí: Wingspan: | 21,780 m | 71ft 5,5in |
Délka: Length: | 13,950 m | 45ft 9,2in |
Výška: Height: | 4,000 m | 13ft 1,47in |
Plocha křídla: Wing Area: | ? m2 | ? ft2 |
Plošné zatížení: Wing Loading: | ? kg/m2 | ? lb/ft2 |
Pohon: Propulsion: | ||
Kategorie: Category: | pístový | piston |
Počet motorů: Number of Engines: | 2 | |
Typ: Type: | BMW IIIa, vodou chlazený řadový šestiválec o vzletovém výkonu 136 kW (185 k) a 169 kW (230 k) v h= 2 000 m. Vrtule dvoulisté kovové, později vyměněny za dvoulisté dřevěné. | BMW IIIa six-cylinder water-cooled inline engine rated at 182 hp for take-off and maximum power output 227 hp at 6,562 ft, driving two-blade metal (later wooden) propeller. |
Objem palivových nádrží: Fuel Tank Capacity: | ? | ? |
Výkony: Performance: | ||
Maximální rychlost: Maximum Speed: | 201.2 km/h v 0 m | 125 mph in 0 ft |
Cestovní rychlost: Cruise Speed: | ? km/h v ? m | ? mph in ? ft |
Rychlost stoupání: Climb Rate: | ? m/s | ? ft/min |
Čas výstupu na výšku: Time to Climb to: | 15,0 min do 3000 m | 15,0 min to 9843 ft |
Operační dostup: Service Ceiling: | 6500 m | 21325 ft |
Dolet: Range: | ? km | ? mi |
Maximální dolet: Maximum Range: | ? km | ? mi |
Výzbroj: Armament: | žádná | None |
Uživatelské státy: User States: | | |
Poznámka: Note: | Viz příspěvek historie letounu. | In September 1922, a patriotic organisation known as the Teikoku Kaibo Gikai (Imperial Maritime Defence Volunteer Association) recognised that an all-metal aircraft of the quality being demonstrated by other countries, had not been manufactured in Japan, and therefore undertook such a project. For the design they organised the All Metal Aeroplane Committee which consisted of leading authorities of the Aeronautical Research Institute of Tokyo Imperial University, the Army, and the Navy. Although this was a joint effort, the design was identified with the PMBRA since the main component the hull, was built by the Army Arsenal. The airframe was nearly completed by March 1924, with the exception of the engine installation and other systems. In July of that year, the airframe was transported to the Department of Ordnance, Yokosuka Naval Arsenal, where the engines and other systems were installed. Because of development delays with the Japanese engines which were to deliver 200 hp at 3,000 m (9,843 ft), it was decided to use two 185 hp BMW IIIa engines instead. With these installed, the KB Flying-boat (KB for Kai Bo) as it was now called, was completed in December 1924. The Kaibo Gikai KB was a twin-engined parasol-wing monoplane flying boat with a two-step hull and sponsons. It was of all-metal construction with metal stressed skin covering apart from some fabric covering on the wings and control surfaces. After the aircraft was donated to the Navy by the Kaibo Gikai, flying trials began, with Navy test pilot Lieut-Cdr Hisakichi Akaishi, at the controls. As a result of minor modifications, the aircraft showed excellent take-off and alighting performance under light load conditions. However, on 22 March, 1926, during its seventh test flight, the aircraft was seen in a glide with both engines stopped, its gliding angle continued to steepen and it crashed into the water nearly vertical, killing all four crew members on board. The cause of the crash was attributed to a malfunction of the flight control system. With this loss, further development of the design was ended. Considerable experience was gained the design of this aircraft and it greatly influenced design the Giyu No.3 flying-boat sponsored by the Kaibo Gikai and built by Kawasaki. |
Zdroje: Sources: | Robert C. Mikesh and Shorzoe Abe, Japanese Aircraft 1910-1941, Naval Institute Press, London, 1990, ISBN: 1-155750-563-2. Illustrated Warplane History, The XPlanes of Imperial Japanese Army & Navy 1924 - 45, p.163 ISBN 4-7663-3292-X http://forum.axishistory.com/viewtopic.php?t=33697 archiv autora |
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