Banner Lane was the site of a wartime shadow factory in Coventry, England, run by Standard Motor Company and dedicated to making Bristol Hercules aero engines. The war-surplus plant was taken over by Standard in 1946 to make and it was made Standard's registered office. After the 1959 sale of Standard's part-ownership of the tractor partnership to Massey Ferguson, it became Massey Ferguson's base for tractor-building operations until production ceased in 2002 and the site was redeveloped for housing.
The business was run, for a £40,000 per annum management fee, by Standard Motor Company enabling products and plant to benefit from Standard's expertise in making similar, if much less complex, products. With some of the parts being produced at Rover Company's shadow factory at Acocks Green, the Hercules engines were complex machines of 38.7 (2,360 cubic inch) capacity having 14 cylinders in two radial rows using rather than poppet valves, and with an output of 1,290–1,735 horsepower (960–1,294 kiloWatt) depending on the application.
When production ended in 1945 more than 20,000 Hercules engines were built.
Other wartime products managed by Standard but made at Canley, the location of a further shadow factory nearby, included the Bristol Beaufighter and De Havilland Mosquito twin-engined fighter bombers together with a variety of other matériel.
Disagreements between Standard and Ferguson culminated in Standard breaking all connections with both Ferguson and tractor production in the summer of 1959. By this time Harry Ferguson Ltd had formed a merger with Massey Harris to become Massey-Harris-Ferguson, later shortened to Massey Ferguson. All Standard's tractor assets were sold to Massey Ferguson on 31 August 1959 and Banner Lane entered the sole ownership of Massey Ferguson.
By 2000, the plant covered 1.8 million ft2 (170,000 m2) and tractor output was in excess of 70,000 per annum, the majority for export; however, increasing numbers of Massey Ferguson tractors were being built elsewhere, most notably at Beauvais in France. In order to rationalise production it was decided that either Beauvais or Banner Lane would be shut down, but pressure from the French Government and workers made Beauvais the more difficult of the two to close, sealing Banner Lane's fate. The tractors production line closed on Christmas Eve 2002 when the last tractor, number 3,307,996 was completed. The factory continued some operations into 2003 though, finishing partially complete tractors, as well as providing gearboxes and other machined parts to Beauvais whilst they prepared for production of the existing 4300 series which would continue there until 2004. This final Banner Lane-designed tractor series was then succeeded in the same year by the new 5400 series and lesser known Finnish-built 4400 series (Badge engineered Valtra A series).
A Massey Ferguson memorial to the tractor production facility has been erected on the site.
The engine was 50 inches (1.3 m) in diameter.
File:Bristol Hercules Kbely.JPG|Engine example on display at the
Prague Aviation Museum, Kbely
Tractor production
Demise
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