This B-29 was recovered from the Aberdeen Proving Ground by the Bradley Air Museum in 1973 and although damaged in the 1979 tornado, was restored between 1998 and 2003 (using the rear fuselage of 44-61739). Although the aircraft was too late to see war service, it was painted to represent 46-1566 (without serial) which had flown with the 468th BG/58th BW from Tinian.

This B-29, as 44-61975 was delivered too late to see action in WWII but was used post-war in various training, tarnsport and resupply roles. Its final flight was circa 1960 to the Aberdeen Proving Ground, MD but was fortunately never shot at. NEAM (then Bradley Air Museum) acquired the frame in 1973 but the rear fuselage was found to be extremely corroded so the salvage crew were instructed by the USAF to take the rear fuselage instead of 44-61739. Restoration started in 1998 and lasted five years. The scheme chosen for repaint was Jack's Hack, worn by Tinian combat veteran 44-61566 of the 468th BG of the 58th BW.

Boeing Renton-built B-29A 44-61975 preserved wearing the identity of 461566 and the markings of the 55th Bomb Squadron. Named "Jack's Hack".