The RY-3 was a transport version of the PB4Y Privateer. Like the earlier C-87 / RY-2 Liberator Express, it had surprisingly serious issues and most of the 34 RY-3s built were disposed of to the Royal Air Force, receiving the Liberator C.IX designation but seeing only brief service from February 1945 until April 1946. This airframe, BuNo 90021 which became JT973, was transferred to the RCAF as an ice research aircraft named Rockcliffe Icewagon, escaping the wrecker until 1949. Photo from: US Navy
Left wing separated during firefighting operations nears Lyons, Colorado, on July 19, 2002. The accident, caused by fatigue, played a major part in the US Forest Service decision to cancel contracts with operators of ageing heavy air tankers.
Derived from the B-24 / PB4Y-1 Liberator, the Privateer was a dedicated maritime patrol aircraft with a single tailfin. 739 Privateers were delivered to the US Navy from late 1944. Photo from: US Navy / National Naval Aviation Museum