British specifications added self-sealing tanks, armor, a Mark III reflector sight, a gun camera, a fire extinguisher, engine shutters, a larger battery, and armored glass. A pneumatic tailwheel tire addressed concerns about tailwheel durability. Each requirement had a survivability or operating rationale, but together they made the aircraft about 900 pounds heavier. The export Buffalo retained an approximately 1,000-horsepower Cyclone rather than the 1,200-horsepower installation discussed for the F2A-3. The cited top speed consequently fell from roughly 323 to 313 mph. Fuel starvation and ineffective high-altitude supercharging further narrowed the aircraft's useful performance envelope.
Notable Point · 32:28-34:11
British equipment made the export Buffalo heavier and weaker
Armor, fuel protection, sights, cameras, and other British equipment added about 900 pounds while the export fighter retained a lower-powered Cyclone.