1960 Unipower Industrial 761FUL with Gardner engine, chassis no 450, started life with RAF (40AT79) and transferred to BAA in 1962, used at Heathrow Airport until 1996. Seen at the Redhill auction on 12/11/11; now with Ed Newman. (Harry Clark)

Owner Ed Newman writes ... Ballast tractor without winch or spades. Was on Unipower stand in 1960. Supplied to the RAF and then transferred to Heathrow and first registered in 1962. Lived at Heathrow until mid '90s and was then sold off and parked in a container until 2010. Now sitting in a barn awaiting a few more jobs before her first show in preservation.