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Based on the Boeing B-29 Superfortress (examples of which had made emergency landings in Russia during 1944 in the course of operations against Japan), the Tupolev Tu-4 differed in its armament and powerplant. It was a heavier aircraft and did not possess either the pressurised tunnel linking the forward to midships crew locations or the integral fuel tankage of the B-29. The first of a 20-aircraft pre-production batch flew on 3 July 1947. Series production terminated after over 400 aircraft had been delivered in 1952, by which time the Tu-4 was in large scale service with the Soviet DA (Long-Range Aviation), being accorded the NATO reporting name 'Bull'. Some were used as wingtip-to-wingtip inflight-refuelling tankers, others as conventional HDU-equipped tankers. The type was exported to China where some were re-engined with Ivchenko AI-20 turboprops and were sporadically used into the 1990s as AEW and drone launching platforms.
| CREW | 11 |
| ENGINE | 4 x ASh-90, 1705kW |
| WEIGHTS |
| Take-off weight | 61300 kg | 135144 lb |
| Empty weight | 35000 kg | 77162 lb |
| DIMENSIONS |
| Wingspan | 43.1 m | 141 ft 5 in |
| Length | 30.2 m | 99 ft 1 in |
| Height | 8.5 m | 28 ft 11 in |
| Wing area | 161.5 m2 | 1738.37 sq ft |
| PERFORMANCE |
| Max. speed | 570 km/h | 354 mph |
| Ceiling | 11000 m | 36100 ft |
| Range w/max.payload | 5000 km | 3107 miles |
| ARMAMENT | 5 x 23mm cannons, 5000kg of bombs |
| gonzalo, gonzalo3001(@)yahoo.es, 30.07.2009 Un problema fue que los soviéticos usaban sistema metrico y todas ls dimensiones del B-29 estaban en sistema imperial (pies, pulgadas) por lo que la URSS debio cambiar en varias fabricas a este ultimo sistema.
Otros cambios eran tanques de combustible e goma flexible en lugar de los integrales del B-29 y la supresion de las zonas presurizadas atras de la cabina de vuelo, incluso creo que sacaron el tunel presurizado. | | sergio, utyuty, 24.05.2008 gracias... | | Jason Moore, learstang(@)aol.com, 24.05.2008 Sergio, parecian muy semejantes en los exteriores, y la estructura era lo mismo, mas o menos, pero existian muchas diferencias pequenas entre los aviones (y no pequenas, por ejemplo, el armamento defensivo en el B-29 consistia de 12.7 mm ametralladoras, pero en los ejemplos definitivos del Tu-4, el armamento era 23 mm canones). Tambien el piel era diferente - era mas grueso en el Tu-4. | | Roger, bldg7(@)hotmail.com, 16.05.2008 http://www.tejavia.com SELL ONE? | | sergio, dsdsds(@)hotmail.com, 10.05.2008 cual es la diferencia de este tupolev al b-29 | | sergio, ghfgh(@)hotmail.com, 10.05.2008 cual es la siferencia de este tupolev al b-29 | | sergio, yyy(@)hotmail.com, 10.05.2008 wow.. cual es la diferencia de este tupolev al b-29? |
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