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Aviation History
1913
1913 - 1346.PDF
" Flight " Copyright The landing chassis and engine housing of the sew 80-h.p, Sopwith biplane. DECEMBER 20, 1913. aluminium cowl, but is nevertheless efficiently cooled by the stream of air passing through a narrow slit formed in the cowl by the front engine bearer ; the lower extremity of the engine also projects slightly below the cowl. The latter is easily detachable, and hinges forward, giving easy access to the valves. The carburettor, to which the petrol is fed by gravity, projects within the cockpit, and can easily be got at by the pilot or passenger. The landing chassis has been considerably modified, and consists of two short skids, each connected to the fuselage by a pair of struts. At the rear the skids are connected by a streamlined cross strut, in the centre of which is hinged the divided axle, carrying at its outer extremities the covered-in running wheels. In its normal position, the axles lie in a groove formed in the cross strut, thus maintaining the streamline effect of the latter. The axle is sprung by means of rubber shock absorbers attached to the skids, and is held in position by two very short radius rods, hinged to the rear extremities of the skids. In order to prevent the cross strut from bending downwards in the middle, it is braced at this point to the fuselage by a wire. The whole of this arrangement is struts; there are only two other pairs of struts separating the main planes near the extremities. The attachment of the rear spar of the lower plane to the fuselage is shown in one of the accompanying sketches. It should be noticed that the struts, including those of the chassis, are well streamlined. In plan form the planes have a greater length in the trailing edge, as on the Morane mono plane. The fuselage follows usual Sopwith practice, being rectangular in section, taper ing to a vertical knife-edge at the rear. The pilot is seated in a small cockpit between the planes, whilst another seat for a passenger is provided on the pilot's right. The forward ends of the top and botiom longerons con verge, forming an attachment for the front engine bearer. The 80 h.p. Gnome engine is mounted in the nose of the fuselage, and is almost completely covered by a neat "Flight" Copyright. View of the cockpit of the new 80 h.p. Sopwith biplane. THE 80 H.P. SOPWITH BIPLANE.—View from the front. 1372 " Flight " Copyright.
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