The “Warhawk” was the name assigned to the P-40 as flown by the U.S. Army Air Corps. Powerplant of the K variant: Allison V-1710-73 engine. As far as I have determined, the aircraft that were assigned to the AVG in 1941, the British agreed to exchange 100 of their “Tomahawk” IIB’s on order for later model Kittyhawk I’s. These were diverted to China, but U.S. law allowed only for cash-and-carry sales to belligerents, CAMCO was formed to purchase these aircraft and “hire” the pilots and crew. This would make the aircraft P-40C’s, but AVG veterans assert that what they flew were P-40B’s – they were not equipped to carry 52-gallon drop tanks, nor bomb shackles, nor armor plating in front of the pilot, and the self-sealing fuel tanks had external, not internally-mounted sealing material. Some P-40’s were fitted with parachute flare racks under the wings. From what I have found, it is likely that the Curtiss plant substituted B models for British IIB’s and shipped them to China. Disney studio artists Hank Porter, Roy Williams, Bill Justice, Van Kaufman, Ed Parks and George Goepper created more than 1,200 insignia for Allied aircraft, vehicles, vessels and bombs without any fees, including perhaps the most famous, this “Flying Tigers.” My photos.