| 词条 | Parnall Peto | ||||||||||||||||||
| 释义 |
The Parnall Peto was a small seaplane designed to Air Ministry specification 16/24 in the early 1920s for use as a submarine-carried reconnaissance aircraft. Design and developmentTwo examples were designed and built by George Parnall and Company and were given serial numbers N181 and N182, the first prototype, N181 crashed at Gibraltar and was rebuilt as N255 before being lost with the submarine HMS M2 when her hangar flooded. The Peto was one of the most challenging design projects that the Parnall company undertook, because of the very small hangar in which the aircraft had to fit, mounted immediately in front of the submarine's conning tower. Of mixed wood, fabric, aluminium and steel construction, it had unequal span, Warren-braced folding rectangular wings. The first aircraft, N181, was powered by a 128 hp Bristol Lucifer engine and had mahogany plywood "Consuta" type floats. Performance was generally satisfactory but following crash damage, improvements were made and the machine was rebuilt with new wings, metal floats and a 169 hp Armstrong Siddeley Mongoose engine. Tests both on the sea and in the air showed that designer, Harold Bolas, had met the requirements and it was officially judged to be exceptionally good. The aircraft was launched using a compressed air catapult mounted on the forward casing of the submarine and recovered using a crane. With the loss of M2, the Royal Navy abandoned submarine-launched aircraft, although most other navies also experimented with the concept in the interwar years.[1] AircraftThe two aircraft built were:
Prototype which was wrecked at Gibraltar on 11 February 1930 and rebuilt as N255 with improved floats and lost with HMS M2.
Which crashed 29 June 1930 at Stokes Bay. It was acquired by F.C.H. Allen and prepared for civil use at Ford aerodrome in Sussex between 1933 and 1934.[2] Issued with civilian Registration G-ACOJ but the project was abandoned.[2] Specifications{{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=Wixey, pp.159–160[2] |crew=two (pilot and observer) |capacity= |payload main= |payload alt= |length main= 22 ft 6 in |length alt=6.86 m |span main=28 ft 5 in |span alt=8.66 m |height main=8 ft 11 in |height alt=2.72 |area main= 174 ft² |area alt= 16.17 m² |airfoil= |empty weight main= 1,300 lb |empty weight alt= 590 kg |loaded weight main= 1,950 lb |loaded weight alt= 885 kg |useful load main= |useful load alt= |max takeoff weight main= |max takeoff weight alt= |more general= |engine (prop)=Armstrong Siddeley Mongoose IIIC |type of prop=five-cylinder air-cooled radial engine with two bladed wooden propeller |number of props=1 |power main= 135 hp |power alt=101 kW |power original= |max speed main= 113 mph |max speed alt=182 km/h |max speed more= at sea level |cruise speed main= |cruise speed alt= |stall speed main= |stall speed alt= |never exceed speed main= |never exceed speed alt= |range main= |range alt= |ceiling main= 11,300 ft [3] |ceiling alt= 3,477 m |climb rate main= 600 ft/min |climb rate alt= 3.05 m/s |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |endurance=2 hours |armament= |avionics= }} See also{{aircontent|related= |similar aircraft=
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|see also= }} Notes1. ^Marriott pp.151–7 [4]2. ^Wixey pp.159–60 3. ^Crosby 2009, p. 123 4. ^1 2 Jackson 1974, p. 440 }} References
External links{{commons category|Parnall Peto}}
7 : Military reconnaissance aircraft 1920–1929|Floatplanes|Parnall aircraft|Submarine-borne aircraft|Single-engined tractor aircraft|Biplanes|Aircraft first flown in 1925 |
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