| 词条 | Gloster Goral | |||||||||||||||
| 释义 |
The Gloster Goral was a single-engined two-seat biplane built to an Air Ministry contract for a general-purpose military aircraft in the late 1920s. It did not win the contest and only one was built. DevelopmentIn 1927, driven by conflicting pressures of an ageing, World War I aircraft stock and the continual need for economy the Air Ministry was attracted by the idea of a general-purpose, multi-tasking machine which used many components from the large stocks of Airco DH.9A accumulated ten years before. The result was Air Ministry specification 26/27, which also encouraged the use of a metal airframe for use overseas and of the abundant Napier Lion engine. At least eight manufacturers responded and the Goral was Gloster's submission.[1] The Goral was an all-metal framed, fabric-covered biplane using DH9A wings of two-bay construction and of slight stagger, with parallel interplane struts. There were ailerons on all wings. The fuselage was oval in cross section and quite slim. The wire-braced, round-tipped tailplane carried unbalanced elevators but the small fin carried a square-topped horn-balanced rudder. The pilot sat under the wing trailing edge cutout, with the gunner behind him, his gun on a ring, mounted on the raised rear decking. The undercarriage had a single axle strutted to the fuselage near the front spar and forward to the engine firewall.[1][2] The Goral was powered by an uncowled 425 hp (315 kW) Bristol Jupiter VIA radial engine rather than the suggested Lion, driving a 12 ft (3.65 m) two-bladed fixed-pitch propeller. The engine exhausts ran along both sides of the lower fuselage from the Goral's long nose to below the gunner's cockpit.[1] The Goral was designed to allow the wings to be replaced with those from existing DH.9A stocks and the fuselage was constructed so that metal components could be replaced by wooden ones to optimise the possibility of overseas sales. Nevertheless, these did not materialise, despite Argentinian interest as late as 1931. At home, the Goral had been in competition for the Air Ministry contract almost immediately after its first flight in February 1927. The competition winner was the Westland Wapiti.[1] The nameGoral is the local name for a goat-antelope, native to the mountains of Northern India, Nemorhaedus goral. Specifications{{aerospecs|ref={{harvnb|James|1971|pp=139}} |met or eng?=eng |crew=two |capacity= |length m=9.4 |length ft=31 |length in=6 |span m=14.19 |span ft=46 |span in=7 |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=3.3 |height ft=11 |height in=4 |wing area sqm=45.89 |wing area sqft=494 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |wing profile= |empty weight kg=1,268 |empty weight lb=2,796 |gross weight kg=2,014 |gross weight lb=4,441 |lift kg= |lift lb= |eng1 number=1 |eng1 type=Bristol Jupiter VIA 9-cylinder radial |eng1 kw=315 |eng1 hp=425 |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=218 |max speed mph=at 5,000 ft (1,524 m) 136 |max speed mach= |cruise speed kmh= |cruise speed mph= |stall speed kmh= |stall speed mph= |range km=1,207 |range miles=750 |endurance h=at 10,000 ft (3,050 m) 6 |endurance min= |ceiling m=6,552 |ceiling ft=21,500 |g limits= |roll rate= |glide ratio= |climb rate ms=4.7 |climb rate ftmin=to 15,000 ft (4,570 m) 923 |sink rate ms= |sink rate ftmin= |armament1=1× synchronised forward firing 0.303 in (7.7 mm) Vickers machine gun |armament2=1× 0.303 in (7.7 mm) Lewis gun mounted on ring in gunner's cockpit |armament3=provision for bomb racks carrying 2×230 lb (104 kg), 4×112 lb (50 kg) or 16×20 lb (9 kg) bombs |armament4= |armament5= |armament6= }}{{aircontent |see also= |related= |similar aircraft= |lists= }} References{{commons category|Gloster Goral}}1. ^1 2 3 {{harvnb|James|1971|pp=136–9}} {{Refbegin}}2. ^Flight, 28 July 1927
2 : British aircraft 1920–1929|Gloster aircraft |
|||||||||||||||
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。