| 词条 | Port Victoria P.V.1 | |||||||||||||||||||
| 释义 |
The Port Victoria P.V.1 was a British prototype floatplane fighter of the First World War, built at the Royal Naval Air Service's Port Victoria Marine Experimental Aircraft Depot on the Isle of Grain by fitting a Sopwith Baby with high-lift wings. Only a single aircraft was built, with the type not being chosen for production. Design and development[1]Squadron-Commander J.W.Seddon RN, officer commanding of the Marine Experimental Aircraft Depot, realised that high-lift wings, as described by the National Physical Laboratory in 1916, had the potential to improve the lifting capacity of the Sopwith Baby seaplane. He instructed the Depot's Experimental Construction Depot to make and fit such wings to a Sopwith Baby, the resulting aircraft being named the P.V.1. The new wings had the same area as the thinner aerofoils used on the Baby but were mounted with greater stagger; larger floats were also fitted. The thicker wings, heavier floats and additional 300 lb. (136 kg) ballast added a total of 600 lb. (272 kg) to the weight of the Baby, but the P.V.1 was still able to reach a height of 8,000 ft. (2,438 m) and achieve a speed of 67 kt (77 mph, 124 km/h). While it successfully demonstrated the performance of the new high-lift wings, the Fairey Hamble Baby was placed in production instead. The P.V.1 was retained by the Depot for test operation, including the investigation of the catapult launching of aircraft. Specifications (P.V.1){{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=Bruce J.M. in Flight, Bruce 29 November 1957[1] |crew=1 |capacity= |length main= 23 ft 0 in |length alt= 7.01 m |span main= |span alt= |height main= |height alt= |area main= 240 ft² |area alt= 22.30 m² |airfoil= |empty weight main= 1,811 lb |empty weight alt= 821 kg |loaded weight main= 2,302 lb |loaded weight alt= 1,044 kg |useful load main= |useful load alt= |max takeoff weight main= |max takeoff weight alt= |more general= |engine (prop)=Clerget |type of prop=rotary engine, driving a two blade wooden propeller |number of props=1 |power main= 110 hp |power alt= 82 kW |power original= |max speed main= 67 knots |max speed alt= 77 mph, 124 km/h |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= 8,000 ft |ceiling alt= 2,438 m |climb rate main= |climb rate alt= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |avionics= }} See also{{aircontent|related=
|similar aircraft=
|lists=
|see also= }} References1. ^1 Bruce in Flight, 29 November 1957, p.846.
6 : Floatplanes|British fighter aircraft 1910–1919|Port Victoria aircraft|Single-engined tractor aircraft|Rotary-engined aircraft|Biplanes |
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