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Aviation History
1954
1954 - 2155.PDF
144 FLIGHT DOUGLAS DC-7 . . . ^ T HIS cut-away drawing of the DC-7 illustrates the basic layout and construction of the machine. The fuselage is divided into three P/(nc'f" compartments: beneath the floor of the central main cabin is the Freon refrigeration plant; while at the rear of the fuselage is a semicircM lounge. The power plants are Wright R-3350-30WA Turbo-Compounds (basically R-33SO radials with "power-recovery" section added) "n are fitted with the Douglas-designed carburettor air-scoop detailed on page 147. Hamilton-Standard Dura! airscrews of 13ft 6in diameter o fitted. Control surfaces are similar to those of the DC-6; a mechanically controlled trim-tab has been added, however, to the port oilero •
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