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The CL-1201 design project studied a nuclear-powered aircraft of extreme size, with a wingspan of 1,120 feet (340 m). [4] Had it been built, it would have had the largest wingspan of any airplane to date, [5] and more than three times that of any aircraft of the 20th century.
An updated civilian version of the Lockheed Martin C-130J-30 Super Hercules was under development, but the program was placed on hold indefinitely in 2000 to focus on military development and production. [2] [3] On February 3, 2014, Lockheed Martin formally relaunched the LM-100J program, saying it expects to sell 75 aircraft. Lockheed sees the ...
The L-1011-250 was an upgrade developed for late-model L-1011-1 aircraft and all L-1011-100 and L-1011-200 aircraft. The more powerful engines, lengthened wing, active-load-control ailerons and other systems that had been developed for the L-1011-500 were adapted into the baseline model.
The L-1049 had some 550 improvements and modifications compared to the L-749, including greater fuel capacity, rectangular windows, larger cockpit windshields and improved heating and pressurization. An Air France L-1049C at London Heathrow Airport, 1955. In 1953, R-3350 Turbo-compounds were made available for civil use.
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Although these two planes went into service with the Navy, the Constitution design ultimately proved underpowered and too large for practical airline use at the time. Although the Martin JRM Mars flying boat had a slightly longer wingspan, the Constitution remains the largest fixed-wing aircraft type ever operated by the U.S. Navy.
Development of the Starliner began when Lockheed designed the L-1449 in response to the Douglas DC-7C Seven Seas. [1] Powered by four 5500 hp Pratt & Whitney PT2G-3 turboprop engines, the L-1449 would have cruised faster than the DC-7C with comparable range with 10,200 US gal (8,493 imp gal; 38,611 L) of fuel in a new 150 ft (46 m) wing.
The Freedom class is one of two classes of the littoral combat ship program, built for the United States Navy. [20]The Freedom class was proposed by a consortium formed by Lockheed Martin as "prime contractor" and by Fincantieri (project) through the subsidiary Marinette Marine (manufacturer) as a contender for a fleet of small, multipurpose warships to operate in the littoral zone.