Martin PBM Mariner was designed since 1937. As the successor to the earlier construction of Consolidated PBY Catalina and P3M. The prototype has completed its first flight on February 18, 1939. Aircraft serial began to be delivered in 1941. Mariner s initially became operational during the fall of 1940 with squadrons VP-55 and VP-56, based at Norfolk, then after combining as VP-74 in mid–1941, moved to a new base in Bermuda.
Manufacturer: Glenn L. Martin Co., Baltimore, Maryland.
Total produced: 1366 (all variants)
- XPBM-1 (Model 162) prototype with BuNo. 0796
- PBM-1 (Model 162) BuNo. 1246, 1248-1266 (21 built); 2 x R-2600-6 engines and retractable floats
- XPBM-2 (Model 162) BuNo. 1247, one of the PBM-1. Experimental catapult-launched long-range strategic bomber, tested during 1941 but never placed
- PBM-3 (Model 162B) BuNo.6455-6458, 6471-6498 (32 built)
- XPBM-3E (Model 162B) BuNo. 6456 – prototype with AN/APS-15 radar
- PBM-3R (Model 162B) unarmed transport version of PBM-3. 18 new build (BuNo.6459-6470, 6499-6504) + 31 converted from PBM-3.
- PBM-3C (Model 162C), Mariner GR Mk I – patrol version with twin 12,7 mm (.50 in) machine guns in nose and dorsal turrets, and single guns in tail turret and waist positions. AN/APS-15 radar in radome behind cockpit and bomb bays 2×1814 kg (2x4000lb). BuNo. 6505-6754, 01650-01673 ( 274 built)
- PBM-3B (Model 162C) ex-RAF Mariners GR Mk 1 after return to U.S. Navy
- PBM-3S (Model 162C) anti-submarine aircraft with reduced armament (top turred was removed) and increased range. Engines with coolinf fins. 94 built (6693, 01674-01728, 48125-48163) + 62 conversions.
- PBM-3D (Model 162D) patrol bomber with new engines R-2600-22 (1900 hp), increased armament (twin 12,7mm machine guns in nose, dorsal and tail turrets, plus two waist guns) and incresed armor protection. BuNo. 48124, 48164-48223, 45205- 45274, 45277-45404 (259 built).
- PBM-4 (Model 162E) – cancelled version with two Wright R-3350 2700 hp (2015 kW) engines
- PBM-5 (Model 162F) – Pratt & Whitney R-2800 engines (2100 hp, 1566 kW). Lengthened engine cowlings with new carburettor intake position. BuNo. 45275-45276, 45405-45444, 59000-59348, 84590-84789, 85136-85160, 98602-98615 ( 628 built).
- PBM-5E – AN/APS-15 radar and other electronic equipment.
- PBM-5A (Model 162G) amphibian version of PBM-5 with retractable nosewheel and main undercarriage in hull sided. New APS-31 radar with teardrop fairing. BuNo. 122067-122096, 122468-122471, 122602-122613 (36 built) + 4 conversions.
- PBM-5M – Mariner used to monitor missile tests.
- PBM-5N – all-weather variant. BuNo. 98606
- PBM-5S – lightened anti-submarine variant of PBM-5
- PBM-5S2 – improved anti-submarine aircraft with revised radar installation and huge searchlight.
- PBM-5G – PBM-5 used by Coast Guard
- XPBM-6 – concept
PBM-1: 2 x 1600 hp Wright R-2600-6 Twin Cyclone 14-cylinder air-cooled radial engines driving three-bladed, electric controllable-pitch metal propellers.
PBM-3D: 2 x 1900 hp Wright R-2600-22 Twin Cyclone 14-cylinder air-cooled radial engines driving three-bladed, electric controllable-pitch metal propellers.
PBM-5: 2 x 2100 hp Pratt & Whitney R-2800-22 Double Wasp 18-cylinder air-cooled radial engines driving four-bladed, electric controllable-pitch propellers.
- PBM Mariner in Action – Bob Smith, Perry Manley; Squadron/Signal Publications – Aircraft Number 74
- Pilot’s handbook of flight operating instructions PBM-5 airplanes
- Flying Boats and Seaplanes since 1910, The Pocket Encyclopedia of World Aircraft in Color – John W. Wood
- American Flying Boats and Amphibious Aircraft – E.R. Johnson
- Golden Age of Flying-boats, Aeroplane Collectors’ Archive – Kelsey Publishing Group 2012
- Flying boats of WWll, Aviation Archive – Kelsey Publishing Group 2015
- Wings Of Fame – The Journal Of Classic Combat Aircraft – Volume 7
- United States Navy Aircraft since 1911 – Gordon Swanborough, Peter M Bowers
- Navy Air Colors: United States Navy, Marine Corps, and Coast Guard Aircraft Camouflage and Markings, Vol. 1, 1911-1945 – Thomas E. Doll, Barkley R. Jackson; Squadron/Signal Publications 6159
- The Official Monogram U.S. Navy & Marine Corps Aircraft Color Guide, Vol 2: 1940-1949 – John M. Elliott, Monogram Aviation Publications 1989
- R. Johnson – United States Naval Aviation, 1919-1941: Aircraft, Airships and Ships Between the Wars
- Steve Ginter – Martin PBM Mariner, Naval Fighters number 97
- Richard A. Hoffman – The Fighting Flying Boat: A History of the Martin PBM Mariner