The P-47D-20 carried 2 125 gal wing drop tanks and a fuselage 108 gal tank, giving it the required range. The P-38J-25 carried 310 gal drop tanks for a radius of 1,300 miles, and carried almost all the latest fixes, including dive flaps. The problem wouldn't be the aircraft type but rather the production numbers. The P-51 and the Hellcat were easy fast builds. Alternate production facilities would have to cover the loss of numbers, and not Brewster or Curtiss. The British would still be operating Hurricanes in CBE through 1944.