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Aviation History
1914
1914 - 0408.PDF
l/ycsi] seat are the oil and petrol service tanks. Petrol is forced to this service tank from the main tank carried behind the pilot's seat by means of a hand operated petrol pump. The pilot's and passenger's seats are arranged tandem APRIL 18, 1914. usual for cross-country work, such as altimeter, compass, clock, revolution indicator and air-speed indicator. A starting handle in front of the pilot makes it possible to Chassis and engine housing of the E.A.C. biplane. The E.A.C. tail skid. fashion, the pilot occupying the front seat. From the passenger's or observer's seat an excellent view is obtained, this being further enhanced by leaving the inner portion of the lower main planes uncovered where they join the fuselage. In order to reduce head resistance on the thus uncovered spars, these have been enclosed start the engine without the necessity of any preliminary swinging of the-' propeller, a point which should be especially valuable for cross-country flying, as it enables the pilot to make a start without any outside assistance, which is not always available when making forced land ings during a prolonged cross-country flight. As will be seen from the accompanying scale drawings, the trailing edge of the planes is slightly longer than the leading edge, and the upper main plane has a slight Method of mounting upper main plane on E.A.C. cabane. View from underneath of E.A.C. tail planes. in streamlined casings, as shown in one of the ac companying sketches, which also shows the method of attaching the spars of the lower plane to the fuselage. Ailerons and elevator are operated by a single central column in front of the pilot, whilst the rudder is actuated by a pivoted foot-bar. The instruments carried are the overhang. The wings are built up over two ash spars of approximately rectangular section, to which are secured the ribs. These are built up of poplar flanges on three- ply webs. The leading and trailing edges of the wings are formed by spruce stringers. It will be noticed that in the outer portion of the wing the leading edge slopes 408 »
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