THE main planes of the four-engined D.H.86, Diana, have an aspect ratio of 12·3 with an exceptionally heavy taper in chord to the tips. The aerofoil section used is a modified R.A.F. 34. Both planes are swept back 4 ft. 9 in. and are set at a dihedral angle of 3 deg. The gap is 6 ft. 4·8 in., and there is a small forward stagger of 8·5 in. The interplane bracing is unusual. There are two steel tube struts on each side where the outer engines are mounted and a single I-section strut, built up of steel sheet with an outer fairing, near the wing tip. The lift and anti-life wires, which are duplicated, are in the plane of the front spars only.


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    Title :

    The D.H. Diana and Dragon


    Subtitle :

    Details of the Four-Engined D.H. 86 and the Twin-Engined D.H. 89



    Publication date :

    1934-09-01


    Size :

    1 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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