Douglas snowblower seen in the late 1980s at Monkton Farleigh Mines museum in Wiltshire. (Jonathan Pye)

A B80 Rolls-Royce petrol engine powers the wheels; twin-Meadows petrol engines power the rotary plough. Ted Angus advises the tank capacities were: for the vehicle 120 gallons (545 litres approx), and the snow clearance engines 300 gallons (1364 litres approx).