| 词条 | De Havilland T.K.4 | |||||||||||||||
| 释义 |
The de Havilland T.K.4 was a 1930s British single-seat racing monoplane designed and built by students of the de Havilland Technical School. Design and developmentThe T.K.4 was built by students at Stag Lane Aerodrome in 1937 with the aim of building the smallest possible aircraft around the 140 hp (104 kW) de Havilland Gipsy Major II.[1] It was a low-wing monoplane with a conventional retractable tailwheel landing gear and had a De Havilland PD30 variable-pitch propeller and was fitted with slots and flaps.[1] The only T.K.4, registered G-AETK, was first flown on 30 July 1937. It was 9th in the 1937 Kings Cup Race at a speed of 230.5 mph.[1][2] The aircraft crashed on 1 October 1937 killing the pilot R.J. Waight while he was attempting a 100 km class record.[1] Specifications{{aerospecs|ref=[1] |met or eng?=eng |crew=1 |capacity= |length m=4.73 |length ft=15 |length in=6 |span m=6 |span ft=19 |span in=8 |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= |height ft= |height in= |wing area sqm= |wing area sqft= |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |empty weight kg=421 |empty weight lb=928 |gross weight kg=616 |gross weight lb=1450 |lift kg= |lift lb= |eng1 number=1 |eng1 type=de Havilland Gipsy Major II |eng1 kw=104 |eng1 hp=140 |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=369 |max speed mph=230 |max speed mach= |cruise speed kmh= |cruise speed mph= |range km=311 |range miles=[2] 500 |endurance h= |endurance min= |ceiling m=6,400 |ceiling ft=[2] 21,000 |glide ratio= |climb rate ms=6.9 |climb rate ftmin=[2] 1,350 |sink rate ms= |sink rate ftmin= |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }}{{aircontent |see also= |related= |similar aircraft= |sequence= |lists= }} Notes{{commons category|De Havilland T.K.4}}1. ^1 2 3 4 Jackson 1974, page 323 2. ^1 2 3 Lewis 1972, p.191. References{{refbegin}}
6 : British sport aircraft 1930–1939|De Havilland aircraft|Racing aircraft|Low-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1937 |
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