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Aviation History
1918
1918 - 0642.PDF
m W**£3Z*\ JUNE 13, 1918. THE A.E.G. BOMBER, G. 105. [Issued by the Technical Dept. Aircraft Production), Ministry of Munitions.'] (.Concluded from page 616.) Tail Planes. tail planesTHE fixed horizontal tail planes are notable for theirextremely bold curvature, both top and bottom. The frame- work consists entirely of welded steel tubing. The leading edge of the tail plane is mounted so as to be adjustable in case of necessity, a simple bracket being used for this purpose, as illustrated in Fig. 20. This is welded on to the fuselage upright at each side and strengthened with a transverse stay. It allows the tail plane leading edge to be fixed in one applied to the top plane only and have a chord which reachesits maximum at their extreme ends and its minimum in the centre of their length. For what purpose this peculiar shapeis adopted is not clear. The framework of these ailerons is welded steel tubing, and the control crank is fitted in sucha way as to lie partially hidden in a slot in the main plane. This crank is built up of welded sheet steel, and is arranged asshown in the sketch. Fig. 21, an elliptical hole being cut in the trailing edge of the main plane for the passage of theforward wire. Control. The main control consists of a wheel mounted on a pivoted lever, the wheel operating the ailerons by means of a drum Fig. 20. Fig. 21. of three positions. The trailing edge of the tail plane is sup-ported each side by a streamline section steel tubular strut. Fin. The fin, like the fixed tail plane, has also a very strongly marked streamline section at the base tapering ofi to flat at ths top, where it abuts against the balanced portion of the rudder. At this point its framework, which is of light steel tube, is made rigid by a couple of tubular stays bracing the rudder post to the sides of the fuselage. . Rudder and Elevators. These organs are built up of steel tubular framework, and present no points of special interest, except that in the case of the rudder that part which is above the fixed fin is made of grooved section. Ailerons. As may be se»n from the plan view of the complete machine, the shape of the ailerons is somewhat unusual. These are Fig. 22. and cables, which pass direct over pulleys and along tubes running parallel with the wing spars and then over inclined pulleys up to the aileron cranks. The wheel column is pivoted to a long crossbar extending the whole length of the fuselage and carrying at each end cranks for the elevator control wires which at intervals are carried through fibre guides socketted to the frame. The cranks of the elevators are concealed inside the rear end of the fuselage, whilst those of the rudder (which is fitted with duplicate cranks and wires) are external. A modified dual control is fitted, which allows the assistant pilot to work the elevator and rudder only. For this purpose a socket is mounted on the pivot bar into which can be inserted a plain steel tube which is normally carried in clips behind the pilot's back. A second rudder bar, the design of which is shown in Fig. 22, is carried under thf> dashboard, and can readily be dropped into position into a square socket par- tially sunk into the floor of the cockpit and connected to the pilot's rudder bar by cranks and a link. B. Underside of the nacelle show- ing bomb maga- zines and racks, also trap-door in rear cockpit. a s H H H H S E H H H H B H 640
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