Douglas DC-7C Seven Seas Wallpapers

Douglas DC-7C Seven Seas Aircraft - photo wallpapers; Megawallpapers.org  : The Douglas DC-7 is anaircraft built by the Douglas Aircraft Company from 1953 to 1958. It was the last major piston transport made by Douglas, coming just a few years before the advent of jet aircraft such as the Boeing 707 and Douglas DC-8. 338 were produced: about 40 are still in service. Pan American World Airways originally requested the "DC-7" in 1945, as a civilian version of the C-74 Globemaster military transport. It cancelled its order shortly afterward. American Airlines revived the designation when it requested an extended-range DC-6 for its transcontinental services. At the time, the Lockheed Constellation [br]was the only aircraft capable of making a nonstop coast-to-coast flight [br]in both directions. Douglas was reluctant to build the aircraft until [br]AA president C. R. Smith placed a firm order for twenty-five at a price of $40 million, covering Douglas's development costs. The prototype flew in May of 1953, and American received its first [br]DC-7 in November, inaugurating the first nonstop coast-to-coast service [br]in the country (taking 8 hours) and forcing rival TWA [br]to offer a similar service with its Super Constellations. Both [br]aircraft, however, suffered from unreliable engines, and many [br]transcontinental flights had to be diverted because of in-flight engine [br]failures. The early DC-7s were only sold to U.S. carriers. European carriers [br]could not take advantage of the small range increase in the early DC-7, [br]so Douglas released an extended-range variant, the DC-7C (Seven Seas) [br]in 1956. A 10 ft (3.05 m) wing-root insert added fuel capacity, reduced [br]induced drag, and made the cabin quieter by moving the engines further [br]outboard. The fuselage, which had been extended over the DC-6B's by a [br]40in (1.02 m) plug behind the wing for the DC-7 and -7B, was lengthened [br]by a similar plug ahead of the wing to give the DC-7C a total length of [br]112 ft 3 in (34.21 m). Pan Am used DC-7C aircraft to inaugurate the first nonstop New York-London service, forcing BOAC to buy the aircraft rather than wait on the delivery of the Bristol Britannia. The DC-7C found its way into several other overseas airlines' fleets, including SAS, [br]which used them for cross-polar service to North America and Asia. [br]However, the 7C's sales were cut short by the arrival of the 707 and [br]DC-8 a few years later. Starting in 1959, Douglas began converting DC-7A and DC-7C aircraft into DC-7F freighters, which extended the life of the aircraft past its viability as a passenger transport. Country of origin: USA [br]_________________________________________________________________________________________________ [br]Engines: four 3400hp Wright R-3350-DA3 Turbo Compound 18-cylinder radials [br]_________________________________________________________________________________________________ [br]Wingspan: 38.86 m (127ft 6in) [br]_________________________________________________________________________________________________ [br]Lenght: 34.21 m (112ft 3in) [br]_________________________________________________________________________________________________ [br]Height: 9.7 m (31ft 10in) [br]_________________________________________________________________________________________________ [br]Weight loaded: 64,864 kg (143,000lb) [br]_________________________________________________________________________________________________ [br]Cruising speed: 571 km/h (355mph) [br]_________________________________________________________________________________________________ [br]Service celling: 6615 m (21,700ft) [br]_________________________________________________________________________________________________ [br]Range: 7410 km (4605 miles) [br]_________________________________________________________________________________________________ [br]Passengers + crew: 60-105 + 4 [br]_________________________________________________________________________________________________

Douglas DC-7C Seven Seas Gallery:

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Douglas DC-7C Seven Seas Wallpapers @ Mega Wallpapers (08 Edition)