F. C. Hibberd & Co.

The origin of the "Planet" petrol locomotive can be traced back to the Kent Construction and Engineering Company of Ashford, Kent. After World War I, Kent Construction purchased a large number of Government-surplus petrol locomotives which they reconditioned and offered for sale. These included both Motor Rail "Simplex" and American Baldwin Locomotive Works products. Kent Construction later produced a range of locomotives to their own designs. These were based on the Motor Rail "Simplex" but were given the name "Planet". They were sold through Honeywill Brothers of London.

Kent Construction closed in 1926 and "Planet" locomotives were then manufactured by Stableford and Company, wagon builders, of Coalville, Leicestershire until they went out of business in 1928. From this time "Planet" locomotives were built by Bedford Engineering Co Ltd, makers of rail and other cranes, of Ampthill Road, Bedford but they failed in 1932, as did the adjacent huge iron works of James and Frederick Howard whose products had included both narrow gauge and standard gauge locomotives since the mid-1920s. "Planet" locomotives were then built by Hibberd in Park Royal, London including models based closely on the designs obtained from Howard of Bedford.

In 1935, Hibberd diversified with the production of a light wheeled tractor for use in or between factories, or on the road. This was available initially with a 4-cylinder petrol engine and either pneumatic or solid tyres - layout was conventional with front steering and driven rear axle. The Hibberd light truck was introduced in 1937 with the Model B (of 2 ton capacity) and Model C (of 25-30 cwt capacity) - which were available with fixed or elevating load platforms and with 8 hp petrol or 10 hp horizontally opposed oil engines. Steering and driving was by the closely spaced front wheels. The original tractor design continued in production during and after WW2 and was available with a variety of engines, including a Ford 4-cylinder industrial petrol engine or an oil engine. A flameproof version was available for working in potentially explosive areas. A number of these were bought by British European Airways in 1947 to tow aircraft. The diesel engined version of these tractors (equipped with Fowler-Sanders 2DX engines) was to be adopted by Butlins Holiday Camps and Whipsnade Zoo to tow trains of up to 6 passenger trailers each carrying 12 people. The Butlins trailers were made by Barnards Ltd of Norwich and had vacuum servo brakes operated from the tractor. In 1950 the Fowler engine in the diesel versions of the "Planet" tractor was replaced by the Turner V-twin diesel engine with 4 speed integral gearbox.

A newspaper article about the Hibberd Works in 1951 stated that the Park Royal factory was responsible for design and assembly of the locomotives and tractors, with manufacture of the big components being "farmed out" all over the country. The finished products were assembled at Park Royal with parts from as many as 200 different suppliers. The tractors were still available with solid or pneumatic tyres, petrol (Ford) or diesel engines, and the flameproof version of the diesel tractor specially designed for use in explosives magazines (one of which is pictured being assembled destined for the Indian Army).

The road tractors and the rail locomotives seem to have been numbered in the same sequence.