| 词条 | Flanders F.4 | |||||||||||||||
| 释义 |
The Flanders F.4 was a 1910s British experimental military two-seat monoplane aircraft designed and built by Howard Flanders as a development of the Flanders F.3. DevelopmentFollowing success with his F.3 experimental monoplane in the spring of 1912, the British War Office ordered four Flanders monoplanes for use by the newly formed Royal Flying Corps.[1] The aircraft had the same configuration as the F.3 but was improved with larger cockpits, accommodating a crew of two in tandem, was powered by a 70 hp (52 kW) Renault engine driving a four-bladed propeller[2] and had other modifications to improve reliability and maintainability. The fixed landing gear of the F.3 was improved with the addition of coil-spring suspension. The first aircraft was flying at Brooklands by 6 July 1912, with all four flown and delivered to the RFC by 2 January 1913. Testing showed the monoplanes flew well,[3] but following the fatal crashes of a Deperdussin and a Bristol-Coanda Monoplane on 6 and 10 September 1912, the Royal Flying Corps had banned the use of monoplanes and the aircraft were not used, with their engines being removed to power Royal Aircraft Factory BE.2s.[4][5] Operators
Specifications (F.4){{aerospecs|ref=The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985), 1985, Orbis Publishing |met or eng?=eng |crew=Two |capacity= |length m9.6 |length ft=31 |length in=6 |span m=12.34 |span ft=40 |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= |height ft= |height in= |wing area sqm=22.30 |wing area sqft=240 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |empty weight kg=612 |empty weight lb=1350 |gross weight kg=839 |gross weight lb=1850 |lift kg= |lift lb= |eng1 number=One |eng1 type=Renault 70 hp 8-cylinder Vee piston engine |eng1 kw=52 |eng1 hp=70 |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=108 |max speed mph=67 |max speed mach= |cruise speed kmh= |cruise speed mph= |range km= |range miles= |endurance h= |endurance min= |ceiling m= |ceiling ft= |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }} See also{{aircontent|related= |similar aircraft= |lists=
|see also= }} References
1. ^Bruce 1982, p.249. 2. ^Bruce 1982, pp. 249–250. 3. ^Bruce 1982, pp. 250–251. 4. ^Bruce 1982, p. xv. 5. ^Bruce 1982, p. 251.
4 : British experimental aircraft 1910–1919|Flanders aircraft|Single-engined tractor aircraft|Shoulder-wing aircraft |
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