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Aviation History
1917
1917 - 0809.PDF
AUGUST 9, 1917 as possible, secure the standardisation of as many parts as possible, and all components are put through rigid tests prior to assembly. As will be seen, the main planes are given a slight backward slope as well as a dihedral angle, in order to give the greatest possible inherent stability without sacrificing the general efficiency of the machine. The amount of sweep-back is 2 ft., and the dihedral angle is 1 degree. The top plane, having a span of 46 ft. 6 ins., is in two, sections, each section being attached to two pairs of inverted V struts mounted on the fuselage. The method of attachment forms the subject of one of our sketches, from . which it will be seen that quick assembly and vice versa is greatly facilitated. It may be noted here that this fitting, together with most of the other fittings on the L.W.F. biplane, is a substantial drop forging. The lower plane, which has a span of 38 ft. 8 ins., is also in two sections, and is attached direct to the fuselage. The method of attachment is shown in one of the accompanying sketches. This fitting consists of a plate following the Side view of the L.W.F. tractor biplane. the fuselage is a steel compression tube connecting opposite fittings. Provision is made for the attach- ment of the bracing cables on both the top and bottom plane fittings. The front spar is located 9 ins. from the leading edge The mounting of the top planesections to the cabane on the L.W.F. tractor biplane. The attachment of the lower planeto the fuselage of the L.W.F. tractor biplane. The L.W.F. Tractor Biplane—The tail-brace fitting. curvature of the fuselage, to which it is attached by four bolts. Formed on the plate is a dome- shaped projection on which is formed a lug which receives the fork on the end of the wing-spar. Inside and 3 ft. from the rear spar. The leading edge of the wing is covered with two-ply wood on the top, extending to the front spar, in order to maintain the correct curvature. The wings are covered with a The L.W.F. tractor bi- plane seen from the rear. mm m 809
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