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Aviation History
1943
1943 - 1753.PDF
JULY 8TH, 1943 heir Characteristics MILES MARTINET IARCE 8LUNT NOSE INVERTED CULL WINC PRONOUNCED DIHEDRAL THICK WINC ROOTSSHARP TAPER IN SECTION UNDERCARRIAGE RETRACTS BACKWARDS DIMENSIONS Span .. Length .. Height .. Wing area MODERATE TAPER ADEVELOPMENT of the Miles Master II advancedsingle-engined trainer, the Miles Martinet wasevolved especially for target-towing purposes and is now in regular service at a number of R.A.F. gunneryschools. Constructionally, it follows the same general lines appliedto all Master trainers, having a semi-monocoque fuselage built up in spruce, with stressed plywood skin, and wingsalso of wooden structure, a laminated plywood covering over which is laid an outer skin of fabric. Split trailing-edge flaps are fitted. The Martinet differs chiefly from the Master II in havingbeen strengthened structurally to cope with the added load imposed by drogue towing, but, like the latest Masters, itswing tips have been squared off. It employs the same inverted-gull type of wing formation, with very thick roots which taper sharply in section to the point where theanhedral gives place to dihedral at the junction of the outer panels and the centre-section. A useful recognition feature of the Martinet is the shallowrectangular box beneath the centre-section of the fuselage (shown above) which houses the towing gear. This, inci-dentally, may be hydraulically, electrically, or wind- operated. Two long exhaust pipes from the back of thecowling run along each side of this box to carry the engine exhaust clear of the towing gear. Powered by a Bristol Mercury XX nine-cylinder air-cooled radial engine of 830 h.p., the top speed of the Martinet unhampered by a drogue is 232 m.p.h. Its speedwith target drogue in tow is, of course, rather less, and varies according to the type of drogue being used, as thesediffer in size and, therefore, in the degree of extra drag.
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