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Aviation History
1913
1913 - 1378.PDF
wMm " Flight" Copyrigni Observer's seat and wireless installation on the Breguet- supplanted by four thinner steel tubes forming a girder in the more orthodox way with struts and cross members and diagonal wire bracing. On this steel structure are mounted wooden distance pieces connected by longitudinal stringers, which gives the fuselage its streamlined form, the whole being afterwards covered with fabric. The two seats are arranged tandem fashion, the pilot occupying the front one. In front of him are the controls which con sist of a rotatable handwheel for steering and elevation and DECEMBER 27, 1913. descent. A foot-bar actuates the ailerons, with which one is pleased to note that this machine is fitted. Another improvement has been effected in the wing construction, as the flexible mounting of the ribs on the tubular spars has been discarded. One cannot help wondering, however, why M. Breguet does not go a step further and employ two rows of struts, which method of construction would increase the strength immensely and more than compensate for the extra weight and head resistance of a few extra struts. However, a diagram displayed on the stand shows a loading test, which appears to have proved that the new wing construction possesses ample strength for any practical purpose. The machine is supported on the water by a big central float and two smaller ones under the first pair of inter-plane struts. The centre float is attached to the fuselage by four steel tubes, of which the rear pair have coil springs introduced in them, while the iront pair forms a swivelling joint with the float, thus providing springing of the rear portion of the main float. A small tail float protects the tail planes against contact with the water. The engine—a 130 h.p. Salmson radial water-cooled motor—is mounted in the nose of the fuse/age on steel bearers, which are further strengthened by two tubes running up to the upper ends of the two inner plane struts. The radiator, which has been given a shape resem bling that of a wing section, is mounted in the place usually occupied by the centre part of the upper plane, a position which ought to combine the ad vantages of little head resistance and effective cooling. In order to facilitate alighting in the dark, a strong headlight has been fitted on a transverse tube between the two front chassis struts. The current for this headlight is furnished by a " Radios " dynamo. The tail planes are of the usual Breguet cruciform type, and are attached to the fuselage by means of a universal joint. A very large tail fin runs along the top of the fuselage from the passenger's seat back to the tail. The object of this fin, which is not fitted on The Breguet hydro-biplane. I4O4 ' Flight " Copyright.
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