Model Variants (Including Prototypes)
Model 162 - Company model designation
XPBM-1 - Single prototype; outfitted with 2 x R-2600-6 engines of 1,600 horsepower each.
PBM-1 - Initial production model; R-2600-6 engines; armament of 5 x 12.7mm machine guns; 21 examples completed.
XPBM-2 PBM-1 conversion for catapult testing
PBM-3 - Improved production model; R-2600-12 engines; 32 examples completed.
PBM-3R - Unarmed transport; 18 completed with 31 conversions (PBM-3 stock).
PBM-3C - Improved patrol platform; additional machine guns; AN/APS-15 series radar fitted; 274 completed.
PBM-3B - Ex-Royal Air Force Mariners in USN service.
PBM-3S - Dedicated submarine hunter; reduced machine gun load; 94 completed with 62 conversions.
PBM-3D - Patrol platform; R-2600-22 engines of 1,900 horsepower; additional machine guns; 259 completed.
PBM-4 - Proposed model with Wright R-3350 engines of 2,700 horsepower; not furthered.
PBM-5 - Model with Pratt & Whitney R-2800 engines of 2,100 horsepower; 628 examples completed.
PBM-5E - PBM-5 with improved radar fit
PBM-5S - Lighter weight submarine hunter
PBM-5S2 - Improved submarine hunter with improved radar fit.
PBM-5A - Amphibious variant with retractable undercarriage; 36 completed with four converted.
Mariner I - RAF variant