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Aviation History
1944
1944 - 0922.PDF
478 FLIGHT Studies in Recognition Aircraft in I ORIGINALLY intended to be a "flying battleship" the Martin flying boat Mars is a prototype which Glenn Martin himself said was becoming obsolescent when Henry Kaiser wanted to mass-produce the type in his shipyards. It has now been converted into a transport for the U.S. Navy and has been busy lately beating its own load-carrying records. Powered by four 2,000 h.p. Wright Duplex Cyclones, the Mars is really a development of the Mariner (below) to which it bears a certain family likeness, especially in the upswept stern of the hull and dihedral tailplane. But its enormous size makes its radial engines look like thimbles. Its wings taper on Jthe trailing edge and have no visible dihedral; twin end- plate fins and rudders are oval and the slab-sided hull is very deep. Dimensions: Span 2o3ft., length 117ft., height 36ft., wing area 2,350 sq. ft. Martin Mars, U.S. Navy Transport. MARINER (Two 2,000 h.p. Duplex Cyclones) Martin Mariner PMB Patrol Bomber. '"PHE Martin Mariner PMB patrol-bomber is powered by a pair -*- of 2,000 h.p. Wright Duplex Cyclones and has a top speed of about 225 m.p.h. It has power-operated nose, tail and dorsal gun-tunets, waist guns, and carries two 22m. tor pedoes or the equivalent bomb-load under its wings. The gulled wing, which tapers almost wholly on the trailing edge to small, round tips, forms its chief recognition feature, together with the acute dihedral angle of the tailplane. The latter has parallel edges and carries twin endplate fins and rudders of high-aspect ratio which, being set at right angles to the tailplane as on the Mars, are inclined inwards in relation to the vertical axis of the aircraft. Fixed stabilising floats are fitted, though earlier versions had the retractable kind. Dimensions: Span 118ft., length 77ft. 2in , height 17ft. 6i»y wing area 1,330 sq. ft.
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