Model Variants (Including Prototypes)
SEV-1XP - One-Off Prototype; single-seater
SEV-2XP - One-Off Prototype; two-seater
SEV-7 - One-Off Prototype; single-seater; fitting a Pratt & Whitney R-1830-9 Twin Wasp radial piston engine; later redesignated to AP-1.
P-35 - Initial Production Model Designation; fitting a Pratt & Whitney R-1830-9 radial piston engine of 850 horsepower.
P-35A - Second Production Model; fitting Pratt & Whitney R-1830-45 radial piston engine of 1,050 horsepower; improved armament.
EP-1 - Export Designation of base P-35
EP-106 - Sweden designation; single-seat fighter.
J-9 - Sweden designation of P-35A production models.
RP-35A - P-35A production models revised as "unfit" for combat; "R" for "restricted".
2PA - Two-Seat Fighter with rear gunners cockpit.
A8V-1 "Dick" - Japanese Navy Two-Seat 2PA production model.
B-6 - Sweden Designation for 2PA production model.
AT-12 "Guardsman" - Two-Seat Advanced Trainer
FN-1 - US Navy Designation of P-35 for evaluation purposes.