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Aviation History
1911
1911 - 0604.PDF
[/LIGHT] JULY 15, 1911. THE NEW ARMY BIPLANE. FOLLOWING up the details which we have already published regarding the experimental biplane, built in the Army aircraft factory at Farnborough, we are now able to give some photographs of it, as well as scale drawings, which give a very good idea of the ailerons, the connecting wires to which, on their way from the rocking lever, pass through the radiator. The ailerons have both the inside edges fixed to the main plane as on the Paulhan machine. It will be noticed that springs are fitted at the connection of the THE NEW ARMY BIPLANE.—View frcm in front. machine in its present state. It is of course inevitable that, being an experimental machine, this latest production of the Farnborough factory should undergo a good deal of modification as the result of the tests which are being carried out with it, but we think our readers will appreciate these further details which we have been able to obtain. Although in several parts it is reminiscent of various successful types, the machine embodies many original features, and the actual performance of it will be watched with close attention by all engaged in the study of aviation. It is unnecessary to give the dimensions in detail here as they are all clearly shown on the drawings, but it may be pointed out that the lower plane is 2 ft. less span than the upper one, while it also has a slight dihedral angle, as can be seen from the view from in front of the machine. Another point to which attention might be drawn is the substantial nature of the main struts. They are all of stream line section, and at the thickest part the dimensions are 5 ins. by ij ins. All the sockets on the machine are of welded Steel. The details of the control mechanism are given in a separate sketch. By a backwards and forwards motion the control lever operates the elevator, while a sideways movement warps the •CONTPOL \y LEVE.R. THE NEW ARMY BIPLANE.—Section through body of machine, showing arrangement of control. THE NEW ARMY BIPLANE.—Side view. 606 elevator rod with the control- lever in order to damp out any sudden shocks on the elevator. The rudders are operated by means of a pedal. As we mentioned in our last issue, the rudders have been carried in nearer the main planes, in fact, their original position was nearly twice their present distance from the trailing edge. The propeller- shaft is carried in bearings mounted on the upper frame work of the fuselage and is geared down so that it normally runs at about 800 revolutions. Since the initial appearance of the machine the under carriage has been considerably altered, and in addition to placing the flexible skid at the forward end of the fusel age, four additional struts arranged " V " fashion have been fitted at the rear end of the main skids.
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