| 词条 | Avia B.35 | |||||||||||||||
| 释义 |
The Avia B.35 (RLM designation Av-35) was a fighter aircraft built in Czechoslovakia shortly before World War II. It was designed to meet a 1935 requirement by the Czechoslovakian Air Force for a replacement for their B-534 fighter biplanes. The B.35 was an elegant, low-wing monoplane with an elliptical wing. The fuselage was constructed from welded steel tube, covered in metal ahead of and including the cockpit and fabric aft of the cockpit, while the wing was of entirely wooden construction. Rather anachronistically, the Air Force specified a fixed tailwheel undercarriage for the aircraft, in the hope that this would speed development, as the mechanism for retracting the undercarriage was not yet available.[1] DevelopmentThe first prototype, the B-35/1, displayed excellent flying characteristics and high speed and was originally powered by a Hispano-Suiza 12Ydrs piston engine. The powerplant was later changed to a 12Ycrs with an identical power output, but with provision for an autocannon to be fitted between the cylinder banks to fire through the propeller hub. Testing continued until 22 November 1938, when the aircraft was destroyed in a crash that killed of the Military Technical and Aeronautical Institute test pilot Arnošt Kavalec.[2] Nevertheless, a second prototype, B-35/2, was already reaching completion, and was fitted with redesigned ailerons and flaps. It first flew on 30 December with testing beginning in earnest in February 1939. A preproduction series of ten aircraft was ordered, but before these could be built, Czechoslovakia was occupied by Germany in March 1939. Development however was resumed under German control, with the substantially revised B.35/3 flying in August 1939. The elliptical leading edges of the wings had been replaced with straight ones, and an outward-retracting main undercarriage was fitted. This prototype was the first to actually carry its intended armament. With German markings and the registration D-IBPP, it was displayed at the Salon de l'Aéronautique{{clarify|date=August 2017}} in Brussels, where enough interest was generated to spur development of an improved version of the aircraft as the B.135.[3] Variants
Specifications (B.35/1){{aerospecs|plane or copter?= plane |jet or prop?= prop |met or eng?= met |ref= |crew= one pilot |capacity= |length m= 8.50 |length ft= 27 |length in= 11 |span m= 10.85 |span ft= 35 |span in= 7 |height m= 2.60 |height ft= 8 |height in= 6 |wing area sqm= 17.00 |wing area sqft= 183 ft |empty weight kg= 1,690 |empty weight lb= 3,726 |gross weight kg= 2,200 |gross weight lb= 4,850 |eng1 number= 1 |eng1 type= Hispano-Suiza 12Ycrs Twelve-cylinder supercharged liquid-cooled 60° V12 engine |eng1 kw= 640 |eng1 hp= 860 |max speed kmh= 495 |max speed mph= 308 |cruise speed kmh= |cruise speed mph= |range km= 500 |range miles= 311 |endurance h= |endurance min= |ceiling m= |ceiling ft= |climb rate ms= 13.0 |climb rate ftmin= 2,560 |wing loading kg/m2= 129.41 |wing loading lb/sqft= 26.50 |power/mass kW/kg= 0.290 |power/mass hp/lb= 0.177 |armament1= }} See also{{Portal|Aviation}}{{aircontent|related=
|similar aircraft=
|sequence= |lists= |see also= }} References
1. ^{{Harvnb|Bílý|2003|p=11.}} 2. ^{{Harvnb|Bílý|2003|p=20.}} 3. ^{{Harvnb|Bílý|2003|pp=36–45.}}
External links{{commons category|Avia B-35}}
5 : Low-wing aircraft|Single-engined tractor aircraft|Czechoslovakian fighter aircraft 1930–1939|Avia aircraft|Aircraft first flown in 1938 |
|||||||||||||||
| 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。