| 词条 | Comte AC-3 | |||||||||||||||
| 释义 |
The Comte AC-3 was a 1920s Swiss bomber/transport aircraft produced by Flugzeugbau A. Comte. Design and developmentIn November 1928, as a response to increasing tensions and clashes between troops in the Gran Chaco border region between Bolivia and Paraguay, Bolivia placed an order with Alfred Comte, the owner of a small Swiss aircraft manufacturer for three long-range bomber-transport aircraft, using funds collected by popular subscription.[1] The AC-3 was a high-wing semicantilever monoplane of mixed construction. It was fabric covered with a conventional tail unit. It had three open cockpits, one in the nose for a gunner or observer, one forward of the wing for a pilot, and one on the upper rear fuselage for a rear gunner. An unconventional engine layout had two 447 kW (600 hp) Hispano-Suiza inline piston engines in tandem supported on eight struts above the fuselage. The installation had to be high enough to allow clearance for the two (one pusher, one tractor) propellers above the fuselage. A hatch in the port side allowed cargo or troops to be carried in the main cabin. The new aircraft was too large to be built in Comte's existing factory, (the AC-3 was the largest aircraft ever to be developed and built in Switzerland) and forced Comte to build a new hangar just for the AC-3. It made its maiden flight from Dübendorf airfield on 22 February 1930. The aircraft failed to meet its expected top speed, and as a result it was refitted with four-bladed propellers instead of the original two-bladed items. A collapse in the price of tin resulted in severe financial problems in Bolivia, and the military junta ruling Bolivia cancelled the order for the three Comte bombers, with only the first example being built, which was dismantled in 1935.[2] Operators
Specifications{{aerospecs|ref= |met or eng?=met |crew=3 |capacity= |length m=18 |length ft=59 |length in=0¾ |span m=26 |span ft=85 |span in=3 |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=6 |height ft=19 |height in=8¼ |wing area sqm=95 |wing area sqft=1,022 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |empty weight kg=4000 |empty weight lb=8,818 |gross weight kg=6500 |gross weight lb=14,330 |lift kg= |lift lb= |eng1 number=2 |eng1 type=Hispano-Suiza inline piston |eng1 kw=447 |eng1 hp=600 |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=210 |max speed mph=130 |max speed mach= |cruise speed kmh= |cruise speed mph= |range km=1500 |range miles=932 |endurance h= |endurance min= |ceiling m=5300 |ceiling ft=17,390 |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }} References{{commons category|Comte aircraft}}1. ^Stapfer 2005, p. 26. 2. ^Stapfer 2005, pp. 27–28.
See also{{aircontent|related= |similar aircraft= |lists= |see also= }}{{Comte aircraft}} 5 : Swiss military aircraft 1920–1929|Twin-engined push-pull aircraft|Comte aircraft|High-wing aircraft|Aircraft first flown in 1930 |
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