The P-40FU had many advanced features:
-- Laminar-flow wing with low thickness to chord and flying tail, so it didn't have compressibility problems or problems handling near Mach 1.
-- Full-span fowler flaps, giving it a stall speed of 40 mph.
-- The turbosupercharged 3500 HP P&W Wasp Overlord (4500 HP on WEP), giving 7000 fpm climb rate and top speed of 520 mph.
-- Ailerons and spoilers, giving light, crisp roll of 360 degrees per second at all speeds.
-- Two TRW 20 mm Super Gatling cannons, 1000 m/s muzzle velocity, 1950 rounds per minute.
-- Reversible prop.