Rolls Royce's The Griffon engine, which was retired in 1991, was transferred from Coventry airport to the Yorkshire Air Museum in Elvington, near York. Griffon engines are a 37 litre V12 used in the ...
John Deere's two-cylinder diesel engine tractors, like the Model 70, 720, and 730, also set records for fuel efficiency. According to historical data, the Model 70, introduced in the mid-1950s, set a ...