Ex-USAF 51-7789. Bought by Ace Smelting out of Davis-Monthan AFB 25 May 1959, and thankfully did not end up where that company's name implies. Ex N3320G, N28EG, to N28RE in 1992, the second use of that reg on a T-28. Part of the Mid America Flight Museum, parked outside their hangar at Grimes.