Although marked as RR-5 Bureau Number 9205, this is actually 4-AT-E N7861 which never was assigned to the US Navy. It was originally built in 1928 as a 4-AT-B and converted by the factory in 1929 to a 4-AT-E. N7861 spent most of its flying career with Johnson Flying Service, where it was used as an insect spray aircraft as well as under contract with the US Forest Service as a smoke jumper transport. It was donated to the museum in 1973. The US Navy and US Marine Corps had a total of 9 Ford Tri-Motors of various types in their inventory, all ordered between 1927-1931.

Owned by Dexter D. Coffin Jr. Now exhibited in the NMNA museum at Pensacola in the guise of RR-5 "9206" which was 5-AT-105.

Built in July 1928 as a 4-AT-B as their 'executive jet' for the Union Electric Light and Power Company, St Louis MO. Later served Johnsons Flying Service at Missoula Montana. Here beautifully restored for Mr Dexter D. Coffin Jr. Now displayed at the Pensacola FL museum wearing "9206" which was RR-5 naval version cn 5-AT-105.