FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1952
1952 - 1379.PDF
16 May 1952 599 I A Model 749A Lock/teed Constellation of Air India, one of the 15 companies which operate this famous transport. Larger and more powerful than its predecessors, the new Douglas DC-7 will be powered by four 3,250 Wright Turbo-Cyclones. A similarly powered version of the Model 1049 Super-Constellation (left) is expected to be in service by the end of this year. hingeing doors are provided fore and aft of the wings, and the aircraft has a self-powered loading elevator capable of lifting 4,ooolb from loading trucks to cabin floor. Span, 117ft 6in; length, 105ft 7inj wing area, 1,457 sq ft; weight empty, 49,7671b; gross weight, 106,000 lb; cruising speed, 311 m.p.h. at 20,600ft; normal range, 3,860 miles. Douglas DC-6B. At present the "pinnacle" of Douglas develop ment, the DC-6B shows up well in comparison with its con temporaries, both from performance and cost per ton-mile view points. Very large orders are in hand for some six basic versions of the type, probably the largest single order being for a military derivative—the R6D for the U.S. Navy. Powered by CB-17 series Double Wasps aggregating 10,000 h.p.—driving Hamilton three-blade square-tipped airscrews—this latest "Six" can seat up to 92 in its 105ft pressurized fuselage. Present price amounts to some $1,200,000 per unit: Span, 117ft 6in; length, 105ft 7m; wing area, 1,463 sqft; weight empty, 54-56,000 lb; gross weight, up to 107,000 lb; typical perform ance: 4,000-mile range at 285 m.p.h. (45 per cent power) at 22,500ft. Douglas DC-7. Yet another development of the original DC-4, the DC-7 is to be powered by compounded engines—four Wright Turbo-Cyclone 18s, each rated at 3,250 at take-off. With these economical engines and 6,600 U.S. gallons fuel capacity, the international version of the DC-7 will be capable of nights from New York to London, non-stop in either direction. Its fuselage is some three feet longer than that of the DC-6B and it will accommodate from 60-95 passengers according to seatmg arrange ments. The first of 25 DC-7S ordered by American Airlines is scheduled to begin coast-to-coast operations in America on January 1st, 1954- Span, 117ft 6ia> length, 108ft nin; wing area, 1,457sqft; gross weight, 122,200 lb; estimated max. cruising speed, 358 m.p.h. at 24,200ft. Estimated range at 20,000ft (international version), 5,175 miles. Lockheed Constellation. Over 200 Constellations are in service with 15 airlines and many more are on order. Originally designed as a civil airliner in 1939-40, the aircraft first flew in January 1943 as a rnilitary prototype. Twenty had been completed for the U.S.AA.F. by the end of the war and subsequent production machines were all completed as civil transports. The current Model 749A Constellation is basically similar to the first civil Constellation but has more powerful Wright GR3350-BD1 engines (each rated at 2,500 h.p. for take-off), increased fuel capacity and a more luxurious interior. Various interior arrangements allow for total accommodation of from 44 to 68 passengers (as in the latest B.O.A.C. high-density versions). Beneath the floor of the main cabin are two freight compartments with a total capacity of 434 cu ft. Additional loads can be carried in the "Speedpak" metal pannier, which provides 400 cu ft of stowage space for a penalty of about 12 m.p.h. The fuselage is pressurized to an equivalent of 10,000ft at 23,800ft. Span, 123ft; length, 95ft iin; wing area, 1,650 sq ft; weight empty, 56,590-57,160 lb; gross weight, 107,000 lb; cruising speed at 23,000ft, 327 m.p.h.; normal range, 4,160 miles. Lockheed Super Constellation. Ten airlines have already ordered the Super Constellation, which is designed for eventual conversion to turboprop power and has a new fuselage 18.4ft longer than that of the Model 749A. Three versions will be built; the 1049, with 2,500 h.p. R.3350-C 18-CAis; and the 1049B and 1049C, both of which will be fitted with four 3,250 h.p. Wright Turbo-Cyclone compound engines (the "B" model is a cargo transport with total capacity of 5,568 cu ft). The first prototype of the model 1049 made its first flight on October 13th, 1950; by comparison with the 749A, from which it was converted, it has an increased all-up weight of 120,000 lb and greater interior capacity—for 92 passengers. Its cruising speed is 350 m.p.h. The compound-engined 1049C will have a take-off
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
