FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1918
1918 - 1345.PDF
NOVEMBER 28, 1918 m m Fig. 61.— Main planes and ailerons of four- engined giant. The ribs, of which a detail drawing is given in Fig. 51, are built up, and of girder form. Between the leading edge and the leading spar, numerous extra ribs occur in addition to the main ribs. Internal bracing against drag takes the form of steel tubular compression members and steel cables, the former being placed at a point coincident with the attachment of each interplane strut. An additional bracing is installed, of which the compression member consists of a double rib placed half-way between the struts. In each case the bracing wires pass obliquely right through the spars. The ribs are mounted parallel to the line of flight. The disposal of the spars is as follows :— Top Plane.— Leading edge to centre of leading spar Distance between centres of spars Trailing edge to centre of rear main spar .. .. .... Bottom Plane.— Leading edge to centre of leading spar Distances between centres of main spars Trailing edge to centre of rear -main spar .. ... I 5 5 1 S 5 ft. ft. ft. ft. ft. ft. 9$ ins.7i ins. 7* in. 1 in. (approx.). The trailing edge of this aeroplane was too ba^ly damaged to permit of this measurement being given accurately. Between the interplane struts the rear spars are thinned down in width, but their depth remains practically constant from root to tip. Such tapering as exists is so arranged as to promote a decided wash-out of the angle of incidence near the tip. This is done by tapering the front spar on its upper edge, and the rear spar on its lower edge. AileronsThese are on the top planes only, and are provided with a framework of steel tubing. They are not balanced, and thecontrols are led in the usual manner through the bottom plane from the aileron lever. The span of each ajleron is 22 ft. 5 ins., and the chord 3 ft. 4 ins. •..-;• -.'-•...•' Inter-plane StrutsThese are of large-diameter steel tube, covered in with a streamline fairing consisting of three-ply mounted on a lightrib-work of wood. Bracing The attachment of the bracing cables to the spars is some- what similar to the bracing of the Fokker fuselage ; that is m Fig. 62.—Attach- ment of struts and compression tube on four- engined giant. m m m %
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
