Chamberlain

The first Chamberlain tractor produced was the model 40k which had 40 horsepower (30 kW) twin-cylinder, horizontally opposed engines. They weighed about four tonnes and were considered to be ideal for the needs of Australian farmers.

In 1955 the production of kerosene powered tractors was replaced by diesel powered models and as a publicity stunt in the same year Chamberlains entered the new diesel powered Champion model tractor in the Redex around Australia rally trial, it became known as "Tail End Charlie".