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Tu-4

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

Even during World War II in September 1943 g. OKB A. N. Tupolev was asked to develop a preliminary design and build a scale model of heavy long-range bomber. Project, received index "64", represented with spaced fins nizkoplan. By the middle 1945 g. It was carried out basic calculations, purged model, OKB started to produce drawings. But it became clear, that modern equipment - navigation, small, radar - Industry in the required time will not be able to put.

Tu-4 – video

IV. Stalin understood, that all of these objective difficulties pose the problem of creating a bomber in jeopardy. Way out of this situation was found completely unexpected. During the bombing of Japan by US aircraft several B-29 after injury were forced to land on the territory of the USSR. Stalin took, probably, the only right decision - to establish copies of the American edition B-29.
The work of copying the B-29 was assigned to the OKB AN. Tupolev with simultaneous deployment series at the factory number 22 in Kazan. on "64" aircraft works were stopped. 6 June 1945 g. came the decision of T-bills on the organization of serial production of the B-4 (initial designation analogue B-29). Three flying machines B-29 were flown to Moscow. One machine arrived in LII staff training, the second was transferred to EDB for disassembly, studying and copying, third remained as a reference. A. N. Tupolev, machine Inspection, He assessed the scope and duration of future work in three years. justifying term, he explained to Stalin, that American technology is different and ahead of our, not only in aircraft, but also in other sectors. Stalin replied, that the industry will have to learn, since no other way.

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

Tupolev giving sweeping powers, a period limited to two years. And although the Tupolev almost became commander in chief of all included in the orbit of an ambitious project, The task before him was extremely difficult. It was to involve more 900 factories of various ministries. Preparation for the Tupolev began with the establishment of headquarters. It includes the heads of bureau leading teams, and leading on the car was the DS. Markov.
In the 29-above all undocked, each individual unit processed has its own team of designers and technologists. The unit weighed, obmeryali, photographed and described, fiksirovali geodetic. Every detail was subjected to spectral analysis to determine the material. Difficulties arose when translating inch sizes in metric, especially plating thickness. Similar difficulties were observed in a similar translation of wire sizes. If rounded plus, weight increased by 8-10%, if negative - did not fit the norms of the voltage drop. Instrument operators also had the opportunity to work hard over copying. It was easier to dvigatelisty. OKB A.D. Shvetsova before the war had a licensing agreement with the American company "Wright". Engine AL-73TK for analog was designed based on "Wright Cyclone 18" American engine, standing on the B-29. Without changes have been put into production turbochargers, carbs, heat-resistant bearings.

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

The development of Soviet aviation industry Tu-4 gave the country not only to modern aircraft, but also brought the Soviet Union to the world level. It took less than two years, to the first production aircraft B-4 went the stocks of the plant. 19 May 1947 g. plane with a crew of test pilot NS. Rybko flew. For great merits EDO AN. Tupolev Copy and serial development of the machine name of the B-4 was changed to the Tu-4. Serial production continued until 1952 g. at three factories, which was released 847 machines. With the TU-4A for the first time in our country 18 October 1951 g. bomb was dropped. Several modifications were made of TU-4, but they were mostly single or at best small series.

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

Performance characteristics of the Tu-4

– chief designer: A. n. Tupolev
– First flight: 19 May 1947 of the year
– Getting Started: 1949 year
– End of operation: mid-1960
– units produced: 1195 or 1296

The crew of the Tu-4

– 11 (commander, pilot, navigator, navigator-bombardier, flight engineer, bortradist, radar operator, 4 arrow)

The dimensions of the Tu-4

– Length: 30,179 m
– Wingspan: 43,047 m
– Height: 8,460 m
– wing area: 161,7 m²
– Ratio Wing elongation: 11,5
– Ratio Wing constriction: 2,36
– airfoil: RAF-34
– The base chassis: 10,44 m
– track chassis: 8,68 m

Weight Tu-4

– empty weight: 36850 kg
– Normal takeoff weight: 47850 kg
– Maximum takeoff weight: 63600 kg
– Volume of fuel tanks: 20180 l (+ 3 x 2420 l additional tank in front bombootseke)

Engine Tu-4

– 4 × radial 18 cylinder air cooled DB-73TK
– engine power: 4 × 2400 l. from. (4 × 1790 kW)
– Air propeller: of a four-B3-V3B or A3-A5
– The diameter of the screw: 5,06 m

The speed of the Tu-4

– Maximum speed at ground: 435 kmh
– Maximum speed at height: 558 km / h on 10250 m
– landing speed: 160 kmh
– Skoropodъёmnost: 4,6 m / s
– set the height: 5000 M 18,2 min
– The length of the run: 960 m
– path length: 920 m

Flight range Tu-4

– with a maximum take-off weight with 3000 kg bombs: 6200 km
– with a maximum take-off weight with 9000 kg bombs: 4100 km

Practical ceiling Tu-4

– 11200 m

Armament of the Tu-4

Small-pushechnoe:
– 4 – 2× 20 mm gun B-20E (two turrets on top, two bottom)
– 1 – 3 × 20 mm gun B-20E (One turret at the rear)
– Total ammunition: 3150 rounds

– combat load: 11930 kg (maximum)
– Guided missiles: 2 × KS-1 (Tu-4K)

bombs:
– nuclear: 1 × RDS-3 (Tu-4A)
– explosive: 2 × FAB-6000 or 4 × FAB-3000 or 8 X-FAB FAB 1500 or 1000, or 14 FAB-× 500 or 40 FAB-× 250 or 48 FAB-× 100 or FAB-50

Photo Tu-4

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

 Tu-4 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

 

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