In December 1944, the last P-40 was accepted by the USAAF after 13,738 aircraft were produced. By this date, however, both the Republic P-47 as well as the North American P-51 had eclipsed the P-40 in every area of performance, range and armament. With the next generation aircraft already on development (the Lockheed P-80, Republic P-84 as well as the North American P-86) the Curtiss P-40 was truly obsolete. With over 100 aircraft either flyable, on display or under restoration the P-40 population remains in steady growth.