This Air Force 80-tonner spent many years switching the grain elevators at the feed manufacturing facility of JD Heiskell (an animal feed supplier) in Guasti. It began life with the US Army on December 1951. From there, it went to the Air Force, before being sold to Coast Grain. When Coast Grain went bankrupt, it was taken over by Scoular Grain, who leased the facilty to JD Heiskell.