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Aviation History
1923
1923 - 0242.PDF
MAY 3, 1923 FLIGHT GLIDER DESIGNING COMPETITION "TURKEY BUZZARD" WING FITTINGS GENERALLY speaking the wing design calls for practically nometal fittings. The few fittings required for the internal drag bracing are of the simplest form, i.e., plain strips of sheetsteel of light gauge, passed through slots in the spar webs and having their ends splayed out at the required angle. Onesuch fitting is shown in one of the drawings published this week, dealing with the fitting for the " A " struts whichsecures the centre section of the wing to the fuselage. This drawing shows fairly clearly the "A" strut fitting,which is composed of two separate pieces 01 sheet steel, cut to shape from the flat and with flanges bent over as shown.A little more detail would not have been out of the way, but it should be possible to manage. The flange's securing thefittings to front and back of the spar are of such width that the ' can be formed by making a saw-cut down the fittingparallel with the centre line of the spai, and then bending the flange at right angles to the sheet from which the fitting ismade. The long projection marked " Attachment for interplaue drag wire " is, of course, for the wires correspondingto the incidence bracing of the centre-section of a biplane— that is to say, from it wires run to the top longerons of thefuselage, from front spar to foot of rear " A " strut, and from rear spar to foot of front " A " strut. Reference to thegeneral arrangement drawings published in our issue of April 12 should make the arrangement clear On another sheet of drawings is shown one of the verysimple fittings by means of which the hit struts are attached to the wing spars. Two strips of sheet steel form a fork whichpasses over the spar, a J-inch bolt securing the ends of the fork to the spar web, which is reinforced by spruce fillerblocks of the shape shown. We cannot say we particularly like this fitting, and we should have preferred it to be in theform of a stirrup passing over the top of the spar without • The general arrangement drawings of "Turkey Buzzard " were publishedin our issue of April 12, 1923. Performance calculations, fuselage con- struction details/etc., on April 19 and details of the wing construction, onApril 26. £ND FITJING ON STRUTS. rd fiord ttood Ofotk jc tewed m plate vr*d d'tlted on W/A/G BEAM FITTING foD A 5T/IUT TURKEY BUZZARD " : Wing spar fitting for " A struts, and end fitting for tubular lift struts. i( SO BASSKOCO /PC ,-s 3'lr HAmC ,| so. gAssnvw PART A I RfOKD TURKEY BUZZARD ELEVATOR CONSTRUCTION REAR BEAM & 3PIY MAHOCAMf WCB SPLIT FLANCCS - [ACH HALF ^v'i FASTCNINGS TO dl MAM IH/tTM MVIS AND GLVC ,V FRONT BEAM' me . ••'• SniT flAVSCS SPRVCt FACH HALT TC Bt i'-f^r TMe Ml DULL AND TAPCKO TO £ AT THl IMOS TURKEY BUZZARD Details of elevator construction.242
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