Castle Bromwich Assembly is a factory owned by Jaguar Land Rover. It is located on the Chester Road in Castle Vale, Birmingham, England and employs 3,200 people. The plant covers an area of 110 acres (44.5 hectares), with a 60,000 m² (6-hectare) manufacturing facility. It manufactures all Jaguar saloon and sports cars. The site was first developed as Castle Bromwich Aircraft Factory, a shadow factory for the production of aircraft by the car industry as part of the rearmament of the UK in the pre-Second World war era. After initial problems it was brought under the control of aircraft manufacturers and became one of the largest producers of aircraft during the war. History Castle Bromwich Aircraft Factory Nuffield: 1936–1940 In 1936, the British government had formalised a plan under the Air Ministry called the Shadow factory plan to increase capacity within Britain's aircraft industry. Headed up by automotive pioneer Herbert Austin, the plan was to create nine new factories and add additional capacity and facilities to Britain's existing car manufacturing plants to enable them to quickly turn to aircraft production should the political situation in Europe change towards war. In 1936, the Air Ministry purchased a parcel of land opposite Castle Bromwich Aerodrome which encompassed an old sewage works. Developed and managed by the Nuffield Organization, owners of Morris Motors, they were briefed to manufacture Supermarine Spitfire fighters and later Avro Lancaster bombers. The theory was that the local Birmingham skills-base and production techniques used in the manufacture of motor vehicles could be transferred to aircraft production. CBAF ordered the most modern machine tools then available which were being installed two months after work started on the site. Although Morris Motors under Lord Nuffield (an expert in mass motor-vehicle construction) managed and equipped the factory, it was funded by government money. When the project was first mooted, it was estimated that the factory would be built for £2,000,000, however, by the beginning of 1939, this cost had doubled to over £4,000,000. The Spitfire's stressed-skin construction required precision engineering skills and techniques outside the experience of the local labour force which took some time to train. Aircraft and sub-assemblies were taken across the Chester Road to Castle Bromwich Aerodrome; though early plans included an aerial bridge from E block to the airfield. Very large hangar-like buildings were erected on the east side of the airfield, which were originally referred to as