| 词条 | Beriev Be-4 | |||||||||||||||
| 释义 |
The Beriev Be-4 (originally designated KOR-2) was a reconnaissance flying boat built to operate from Soviet warships during World War II. Design and developmentIn 1939, Beriev was ordered to develop a successor to the KOR-1 design, which would overcome the numerous problems encountered in operational experience with that design. The new aircraft, with the in-house designation KOR-2, first flew on 21 October 1940 at the Beriev factory in Taganrog. The Be-4 was an elegant, parasol-winged monoplane with a slight inverse-gull wing. The large radial engine was mounted in a nacelle above the fuselage. Testing continued through January 1941, when series production was ordered under the designation Be-4, at a factory near Moscow. However, due to the start of World War II, only two aircraft were completed. The factory was dismantled, and evacuated to Omsk, then to Krasnoyarsk, where production resumed in May 1943 to the end of 1945. A total of 47 aircraft were eventually completed. Operational historyThe Be-4 was placed into operational service with the Russian Black Sea Fleet from 1942, where it was used for coastal reconnaissance, anti submarine and transport duties. It was also used on the cruisers Maxim Gorki and Kirov. Operators
Specifications{{aerospecs|met or eng?=met |crew=three |capacity= |length m=10.50 |length ft=34 |length in=5 |span m=12.00 |span ft=39 |span in=4 |dia m= |dia ft= |dia in= |height m=4.05 |height ft=13 |height in=3 |wing area sqm=25.5 |wing area sqft=274 |rot area sqm= |rot area sqft= |aspect ratio= |empty weight kg=2,082 |empty weight lb=4,590 |gross weight kg=2,760 |gross weight lb=6,085 |eng1 number=1 |eng1 type=Shvetsov M-62 radial |eng1 kw=746 |eng1 hp=1,000 |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=356 |max speed mph=221 |max speed mach= |cruise speed kmh= |cruise speed mph= |range km=1,150 |range miles=716 |endurance h= |endurance min= |ceiling m=8,100 |ceiling ft=26,575 |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= |armament1=1 × fixed, forward-firing 7.62 mm ShKAS machine gun |armament2=1 × trainable 7.62 mm ShKAS machine gun for observer |armament3=up to 400 kg (880 lb) of bombs or depth charges |armament4= |armament5= |armament6= }} See also{{aircontent|related= |similar aircraft= |sequence= |lists=
}} References
External links{{Commons category|Beriev Be-4}}
7 : Beriev aircraft|Soviet military reconnaissance aircraft 1940–1949|Flying boats|Single-engined tractor aircraft|Parasol-wing aircraft|Aircraft first flown in 1940|Inverted gull-wing aircraft |
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