| 词条 | Bristol Type 143 | |||||||||||||||
| 释义 |
The Bristol Type 143 was a British twin-engine monoplane aircraft designed by Frank Barnwell of the Bristol Aeroplane Company. Developed alongside the more famous Bristol Type 142, which was developed into the Blenheim light bomber, it used the same wing design and employed the same advanced (for the day) design features such as stressed skin, flaps, and retractable undercarriage. The engine it was designed to use never entered production and only a single prototype was manufactured, Design and developmentLike the better-known Type 142 the Type 143 arose from the unbuilt Bristol Type 135 proposal for a civil twin-engine light transport aircraft. This was a low-wing twin-engined monoplane, seating six people and a crew of two, first sketched out by Frank Barnwell, with the intention of using the smaller of the two engines then being developed by Roy Fedden, the Aquila I. Although the manufacture of a second Aquila was authorised, nothing was done about the construction of an actual airframe.[1] Meanwhile in early 1934 Lord Rothermere announced his intention to have 'the fastest civil aircraft in Europe' built for him.[1] Barnwell proposed an aircraft based on the type 135 but using the more powerful Mercury engine in place of the Aquila, and this was accepted by Rothermere, the aircraft being ordered on 26 March 1934 and first flying on 12 April 1935.[2] The Type 143 was very similar to the Type 135 design, although the cabin was enlarged to seat eight and some detail changes were made to optimise the use of common components with the Type 142: over 70% of components were shared.[3] The prototype 143 was accordingly built alongside the Type 142, receiving the civil registration G-ADEK on 22 March 1935 but had to wait until the end of the year before the engines had completed trials. It was first flown on 20 Jan 1936 without registration but bearing the mark R 14.[4] Further flying continued at Filton, mainly as a testbed for the Aquila. It was put into storage when Aquila development was abandoned in 1938 and subsequently scrapped.[5] Specifications (Type 143){{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref= Bristol Aircraft since 1910 [6] |crew=two |capacity=eight passengers |payload main= |payload alt= |payload more= |length main=43 ft 2 in |length alt= 13.16 m |span main= 56 ft 4 in |span alt= 17.17 m |height main=12 ft 3 in |height alt= 3.73 m |area main= 469 ft² |area alt= 43.6 m² |airfoil= |empty weight main= 7,000 lb |empty weight alt= 3,200 kg |loaded weight main= |loaded weight alt= |useful load main= |useful load alt= |max takeoff weight main= 11,000 lb |max takeoff weight alt= 5,000 kg |more general= |engine (prop)=Bristol Aquila I |type of prop=9-cylinder single-row radial engine |number of props=2 |power main= 500 hp |power alt= 373 kW |power original= |max speed main= 250 mph |max speed alt= 217 kn, 403 km/h |max speed more= |cruise speed main= |cruise speed alt= |cruise speed more= |never exceed speed main= |never exceed speed alt= |stall speed main= |stall speed alt= |range main= 1,250 mi |range alt= 1,087 nmi, 2,013 km |range more= |ferry range main= |ferry range alt= |ferry range more= |ceiling main= |ceiling alt= |ceiling more= |climb rate main= |climb rate alt= |climb rate more= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |armament= |guns= |bombs= |rockets= |missiles= |hardpoints= |hardpoint capacity= |avionics= }} See also{{aircontent|related= |similar aircraft=
}} References1. ^1 Barnes 1964, p. 257. 2. ^Barnes 1964, pp. 257–258. 3. ^Barnes 1964, p. 258. 4. ^Barnes 1964, pp. 259–260. 5. ^Barnes 1964, pp. 260–261. 6. ^Barnes 1964, p.261.
External links{{commons category|Bristol aircraft}}
5 : Bristol Aeroplane Company aircraft|British civil utility aircraft 1930–1939|Twin-engined tractor aircraft|Low-wing aircraft|Aircraft first flown in 1936 |
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