| 词条 | White and Thompson No. 3 | |||||||||||||||||||
| 释义 |
The White and Thompson No. 3 was a British flying boat of the First World War. While the prototype was originally designed to compete in an air-race around the UK, eight more similar aircraft were built for the Royal Naval Air Service. Development and designIn 1914, the White and Thompson Company Limited of Bognor Regis, England, who had become exclusive licence holders for Curtiss flying boats for Great Britain the previous year, decided to build two different flying boats: a single-engine and a larger twin-engine machine. They were set to compete in the Daily Mail £5,000 Circuit of Britain race for seaplanes, scheduled to start on 10 August that year.[1][2] The first to be completed was the single-engine machine, designated the White and Thompson No. 2 Flying Boat.[3] This was a two-bay, uneven-span pusher biplane powered by a 120 hp (90 kW) Beardmore-built Austro Daimler engine mounted between the upper and lower wings. Its hull, the construction of which was subcontracted to S.E.Saunders, was of copper sewn mahogany (or Consuta) over a wooden frame and carried a crew of two in a side-by-side cockpit.[2][4][5] It first flew on 1 August 1914, but was impressed by the Royal Naval Air Service owing to the situation in Europe,[2] with Britain declaring war with Germany on 4 August. An order for eight similar flying boats followed, designated White and Thompson No.3. These had rounded wingtips and a larger tail fin, and had the central fin surface that was mounted above the upper wing centre-section on the prototype replaced by two smaller surfaces above the wings. The production aircraft were powered by a 120 hp Beardmore engine, although one aircraft was fitted with a 150 hp (112 kW) Hispano-Suiza.[6] Operational historyThe prototype, fitted with bomb-racks, proved reliable and popular, and was operated by the RNAS until being wrecked in June 1915.[2][7] The first production aircraft was delivered to No. 1 Squadron RNAS on 7 February 1915. The No. 3 flying boats, which could be fitted with a Lewis gun on the port side of the cockpit were used for anti-submarine patrols from various bases both in the United Kingdom and France (with one force landing in the Netherlands and being interned) and latterly for training.[11][8] Operators
Specifications of prototype{{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=Bognor's Boats [9] |crew=Two |capacity= |length main=27 ft 6 in |length alt=8.38 m |span main=45 ft 0 in |span alt=13.72 m |height main=10 ft 5 in |height alt=3.18 m |area main=400 ft² |area alt=37.2 m² |airfoil=RAF 6 [10] |empty weight main=1,600 lb |empty weight alt=727 kg |loaded weight main= 2,400 lb |loaded weight alt= 1,091 kg |useful load main= |useful load alt= |max takeoff weight main= |max takeoff weight alt= |more general= |engine (prop)=Austro-Daimler |type of prop= |number of props=1 |power main=120 hp |power alt=90 kW |power original= |max speed main=61 knots |max speed alt=70 mph, 113 km/h [11] |max speed more= |cruise speed main= |cruise speed alt= |never exceed speed main= |never exceed speed alt= |stall speed main= |stall speed alt= |range main= |range alt= |ceiling main= |ceiling alt= |climb rate main= |climb rate alt= |loading main=6.00 lb/ft² |loading alt=19.5 kg/m² |thrust/weight= |power/mass main=0.05 hp/lb |power/mass alt=0.08 kW/kg |more performance=
|guns=1x .303 in (7.7 mm) Lewis gun |bombs=Provision for underwing bomb racks |avionics= }} See also{{aircontent|related=
|similar aircraft= |lists=*List of seaplanes and amphibious aircraft
|see also= }} Footnotes1. ^Flight 17 July 1914, p.731. 2. ^1 2 3 London 1996, p.71. 3. ^Goodall 1995, p. 28. 4. ^Flight 11 September 1914, pp. 933-935. 5. ^London 1994, p.73. 6. ^Bruce 1957, pp.650-651. 7. ^Goodall 1995, pp.28—29. 8. ^Thetford 1978, p.433. 9. ^1 London 1996, p.72. 10. ^Goodall 1995, p.29. 11. ^Production aircraft 74 knots (85 mph, 137 km/h) References{{refbegin}}
External links{{Norman Thompson aircraft}}{{wwi-air}} 6 : British sport aircraft 1910–1919|Flying boats|Single-engined pusher aircraft|Norman Thompson aircraft|Biplanes|Aircraft first flown in 1914 |
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