| 词条 | Gloster Gorcock | |||||||||||||||
| 释义 |
The Gloster Gorcock was a single-engined single-seat biplane fighter aircraft produced to a United Kingdom Air Ministry contract completed in 1927. Only three were built. DevelopmentIn May 1924 Glosters received[1] an Air Ministry contract for three experimental biplane single-seat fighters. They were intended to develop metal-framed aircraft, with the first two to have steel fuselages and wooden wings (all fabric covered) and the third to have an all-steel airframe. They were to be powered by a Napier Lion engine which had been used in the racing Gloster III and was a water-cooled motor with three banks of four cylinders in an upright broad arrow arrangement. Another intention was to compare aircraft performance with direct-drive and down-geared propellers.[1] The Gorcock was a single-bay biplane with strong stagger and unequal span wings, having a strong resemblance to the Gamecock. The inline engine allowed a smoother, longer and more pointed nose and increased the length by about 6 ft 5 in (1.95 m); the span was slightly less than the Gamecock's. The first Gorcock had a Lion IV engine, geared and producing 450 hp (335 kW) and the second an ungeared Lion VIII of 525 hp (390 kW). The radiator was mounted on the fuselage underside, between the undercarriage legs. Both engines drove fixed-pitch wooden two-blade, 9 ft (2.74 m) diameter propellers. Initially both these machines had Grebe style rudders, squared off with no balance; these were later replaced with Gamecock rudders, vertically extended to include a horn balance.[1][2] The final, all-metal Gorcock had the geared Lion IV; this was Gloster's first all-metal aircraft. It had a top speed of 174 mph (280 km/h) at 5,000 ft (1,525 m), some 30 mph (48 km/h) faster than contemporary fighters. All three aircraft were delivered by June 1927.[1] Both Glosters and RAE Farnborough used the Gorcocks for research for several years. The second machine, for example was used for airscrew experiments, flying in 1929 with a variety of duralumin propellers. The Gorcocks were also fitted with a variety of ventral radiators of different cross-sections and intake configurations. Despite their research role, the Gorcocks flew armed with two Vickers machine guns in the nose.[1] The nameAccording to the Oxford English Dictionary, gorcock is a Scottish and Northern English name for the male of the Red Grouse. Some sources (but not the OED) suggest a connection between gore and red, but originally gore meant dung, filth or slime. Specifications (first Gorcock){{aerospecs|ref={{harvnb|James|1971|pp=132–3}} |met or eng?=eng |crew=1 |capacity= |length m=7.94 |length ft=26 |length in=1 |span m=8.68 |span ft=28 |span in=6 |swept m= |swept ft= |swept in= |rot number= |rot dia m= |rot dia ft= |rot dia in= |dia m= |dia ft= |dia in= |width m= |width ft= |width in= |height m=3.11 |height ft=10 |height in=3 |wing area sqm=23.22 |wing area sqft=250 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |wing profile= |empty weight kg=1,098 |empty weight lb=2,364 |gross weight kg=1,442 |gross weight lb=3,179 |lift kg= |lift lb= |eng1 number=1 |eng1 type=Napier Lion IV 12-cylinder broad arrow water-cooled |eng1 kw=335 |eng1 hp=450 |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab= |max speed kmh=263 |max speed mph=at 5,000 ft (1,524 m) 164 |max speed mach= |cruise speed kmh= |cruise speed mph= |stall speed kmh= |stall speed mph= |range km= |range miles= |endurance h=1.8 |endurance min= |ceiling m=7,315 |ceiling ft= 24,000 |g limits= |roll rate= |glide ratio= |climb rate ms= to 15,000 ft (4,570 m) 6.93 |climb rate ftmin=1,364 |sink rate ms= |sink rate ftmin= |armament1=2 × 0.303 in (7.7 mm) Vickers machine guns in troughs either side of nose |armament2= |armament3= |armament4= |armament5= |armament6= }}{{aircontent |see also= |related= |similar aircraft= |lists= }} Notes1. ^1 2 3 4 {{harvnb|James|1971|pp=129–133}} 2. ^Flight 24 November 1927 References{{commons category|Gloster aircraft}}{{refbegin}}
2 : British fighter aircraft 1920–1929|Gloster aircraft |
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