| 词条 | Norman Thompson N.1B | |||||||||||||||
| 释义 |
The Norman Thompson N.1B was a prototype British flying boat fighter aircraft of the First World War. A two-seat single-engined pusher biplane, a single example was built in 1917, but no production followed. Development and designIn 1917, the British Admiralty issued Specification N.1B, for single-engined, single-seat aircraft which laid down a number of requirements of aircraft to equip the Royal Naval Air Service (RNAS), including a requirement for a single-engined floatplane or flying boat fighter aircraft intended to operate from the Royal Navy's seaplane carriers.[2] The specification required a maximum speed of {{convert|110|mph|kn km/h}} at {{convert|10000|ft|m|abbr=on}}, and a ceiling of {{convert|20000|ft|m|abbr=on}}.[3] Responses were received from a number of companies, including the Supermarine Baby and the Westland N.1B, as well as that from the Norman Thompson Flight Company. The Norman Thompson design, the Norman Thompson N.1B was a pusher biplane, with two-bay equal span wings that folded forwards for storage onboard ship, with ailerons on both upper and lower wings. A single Hispano-Suiza engine mounted between the wings drove a four-blade propeller. While the Specification required a single-seat aircraft, the Norman Thompson aircraft had a crew of two, seated in separate tandem cockpits ahead of the wings, giving rise to its alternative name of TNT (Tandem Norman Thompson).[4][5] Construction of a single prototype, N37 was ordered by the Admiralty in April 1917,[4] first flying in October that year.[6] Norman Thompson claimed that the aircraft had good performance, reaching a speed of 108 mph (174 km/h), but when the aircraft was officially tested at the Port Victoria Marine Experimental Aircraft Depot, performance was much less than that claimed by Norman Thompson, and did not meet the requirements of the specification.[7][9] No production of any of the aircraft designed against Specification N.1B followed, with the RNAS operating Sopwith Pup and Camel landplanes from flying off platforms aboard ships, which did not require the carrier to heave-to in order to lower a seaplane to the water. The Norman Thompson N.1B was struck off charge by October 1918. Specifications{{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=British Aeroplanes 1914-18 [8] |crew=2 |capacity= |payload main= |payload alt= |payload more= |length main=26 ft 3 in |length alt=8.00 m |span main=34 ft 3 in |span alt=10.44 m |height main=9 ft 7 in |height alt=2.92 m |area main= 357 sq ft |area alt= 33.2 m² |airfoil= |empty weight main= 1,895 lb |empty weight alt= 861 kg |loaded weight main= 2,273 lb |loaded weight alt= 1,215 kg |useful load main= |useful load alt= |max takeoff weight main= |max takeoff weight alt= |max takeoff weight more= |more general= |engine (prop)=Hispano-Suiza 8 |type of prop= water-cooled V-8 engine |number of props=1 |power main= 200 hp |power alt=149 kW |power original= |power more= |max speed main= 93 mph |max speed alt=81 knots, 149 km/h |max speed more= at 2,000 ft (610 m) |cruise speed main= |cruise speed alt= |cruise speed more |stall speed main= |stall speed alt= |stall speed more= |never exceed speed main= |never exceed speed alt= |range main= |range alt= |ferry range main= |ferry range alt= |ferry range more= |ceiling main= 12,600 ft |ceiling alt= 3,840 m |climb rate main= |climb rate alt= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance=*Endurance: 3½ hours
|guns= 1× .303 in Lewis gun |bombs= |rockets= |missiles= |hardpoints= |hardpoint capacity= |avionics= }} See also{{aircontent|see also= |related= |similar aircraft=
|lists=*List of seaplanes and amphibious aircraft }} Notes1. ^{{cite web|last1=Moss|first1=Roger|title=Francis Percy Hyde Beadle|url=http://britishaviation-ptp.com/fph_beadle.html|website=British Aviation - Projects to Production|accessdate=10 February 2017}} 2. ^Another requirement of specification N.1B was for a torpedo bomber to carry a heavy torpedo, which resulted in the Short Shirl and Blackburn Blackburd. These torpedo bombers were unsuitable for the requirement for shipborne fighter which the Norman Thompson N.1B was built and vice versa. 3. ^James 1991, p.69. 4. ^1 Goodall 1995, p.68. 5. ^London 2003, pp. 37–39. 6. ^London 2003, p.39. 7. ^Goodall 1995, p.69. 8. ^1 Bruce 1957, p. 659. References
External links{{Norman Thompson aircraft}}{{wwi-air}} 5 : Flying boats|British fighter aircraft 1910–1919|Norman Thompson aircraft|Biplanes|Single-engined pusher aircraft |
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