Martin PBM Mariner
Built by Glenn L. Martin Company as a an patrol bomber flying boat.
Model 162D was a patrol bomber with increased power (two 1,900 hp (1,417 kW) R-2600-22s) and increased armament (twin 0.50 in machine guns in nose, dorsal and tail turrets, plus two waist guns). A total of 259 were built.
Model 162F version with 2,100 hp (1,566 kW) Pratt & Whitney R-2800 engines. A total of 628 were built.
Engine 2 x Wright R-2600-6 14-cylinder radial engines, 1,600 hp each driving four bladed propellers
Span 118' / 36m
Length 79' 10" / 23.5m
Height 27' 6" / 5.33m
Maximum Speed 205 mph
Range 3,000 miles / 4,800 km
Armament 8 x .50 caliber machine guns (two each in nose, dorsal and tail turrets one each in blisters amidships)
Bombload 4,000 lbs of bombs or depth charges or 2 × Mark 13 torpedoes