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.
The D.H. Diana and Dragon
Details of the Four-Engined D.H. 86 and the Twin-Engined D.H. 89
Aircraft Engineering and Aerospace Technology ; 6 , 9 ; 241
1934-09-01
1 pages
Article (Journal)
Electronic Resource
English
Online Contents | 2007
DataCite | 1913
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Automotive engineering | 1979
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