Monowheel tractor

This limited their use to smooth floors, such as factories and railway stations, rather than muddy farm tracks or even the roads of the period.

Some vehicle were driven by a driver riding or standing on-board with direct tiller steering, others were pedestrian controlled by walking alongside.

All were highly manoeuvrable, the full swivel of the self-contained engine unit allowing them to turn within their own length.

Examples include: After World War II, tractors were a well-developed and widespread piece of agricultural machinery, although they were still expensive.

Britain, for some years after the war, was in a period of austerity and currency controls applied to overseas purchases.

[5] This used a tricycle cart chassis of welded sheet steel,[6] drawn by a tractor wheel mounted on a single small-diameter kingpin above it.

In 1966 the British government through the NRDC was working on a design developed for the National Institute of Agricultural Engineers.