Aircraft Production USA versus Japan from: http://www.combinedfleet.com/economic.htm Finally, no examination of the Pacific War would be complete without taking a look at air power. For all the talk of the Pacific War being a 'Carrier War', an aircraft carrier is really nothing more than a vehicle to deliver an airplane to an area of operations. While airplanes certainly couldn't take and hold islands by themselves, air supremacy was vital in ensuring that such bastions could be reduced and captured. Below is a table depicting the aircraft production of the two antagonists. [SIZE=+1]Aircraft Production[/SIZE] [SIZE=+1]Year[/SIZE] [SIZE=+1]United States[/SIZE] ----------[SIZE=+1]Japan[/SIZE] 1939 --5,856 ---------------4,467 1940 --12,804 --------------4,768 1941 --26,277 --------------5,088 1942 --47,836 --------------8,861 1943 --85,898 -------------16,693 1944 --96,318 -------------28,180 1945 --49,761 --------------8,263 Total --324,750 -----------76,320 Again, a pretty staggering difference. Not only that, but as Paul Kennedy points out, the Allies were not only cranking out more planes, but many of them were of newer design as well, such as the new F4U Corsair and F6F Hellcat fighter aircraft. Japan, on the other hand, pretty much relied on variants of the Zero fighter throughout the war. The Zero was a brilliant design in many respects, but by 1943 had clearly been surpassed by the newer American models. This pattern was repeated across every category of airplane in the two opposing arsenals. In addition, a large part of the American production total (some 97,810 units) was composed of multiengined (either two or four engines) bombers, whereas only 15,117 of the Japanese planes were bombers (which were universally two engine varieties). Thus, if one were to look at aircraft production in terms of total number of engines, total weight of aircraft produced, or total weight of combat payload, the differences in production would become even more pronounced.