Curtiss C- 46 Commando

     The C-46 was developed from the new and unproven commercial aircraft design, the CW-20, which first flew in March 1940. Deliveries of the AAF C-46s began in July 1942 for the Air Transport Command and Troop Carrier Command. During WW II, the AAF accepted 3,144 C-46s for hauling cargo and personnel and for towing gliders. 
     The C-46A, D, and F models were used in Korea, and a few aircraft were used by Air Force Special Air Warfare Center in the early years of the Vietnam War. C-46s were in limited Air Force service as late as 1969. Many went into civilian hands after World War II, and a fair number are still in use today.
See the display model of the C-46 at Aviation-Central.com