The Martin Model 162 Mariner (US Navy designations PBM-3 and PBM-5) was an American patrol-bomber and naval transport aircraft of the Second World War first prototyped in 1938. The Martin Model 162 was a high-wing cantilever monoplane powered by two Wright Cyclone R-2600-12 14-cylinder two-row radial air-cooled engines providing a top speed of 320 kmh and a range of 4800 km. The
Martin Model 162 carried a crew of seven and was armed with gun turrets at the nose, amidships, tail and beam positions and could carry depth charges and bombs in the engine nacelles below the wings and two 21-inc torpedoes one under each wing. Research Martin Model 162