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This invention relates to aircraft and particularly the heavier than air type. One of the objects of this invention is to provide an aircraft of this type which is simple and practical in construction and which is capable of efficient operation in the stratosphere as well as in the troposphere. Other objects are to enable the aircraft to be driven at very high speeds, to permit the means of propulsion to be changed in flight; to provide low air resistance particularly when flying at high speeds; to permit change of the form of the aircraft during light; to protect the occupants of the aircraft against variation in atmospheric pressure and temperature; to permit the propellers and/or driving engines to be retracted into the fuselage or wings during flight; to provide improved driving means for the propellers; and to facilitate the operation and control of the aircraft.
aircraft, high speed aircraft, improvents on aircraft, aircraft propellers
Aviation | Engineering
Goddard, Robert, "Aircraft" (1936). WPI Patents Collection. 48.