One hundred ninety-two cameras were made in the initial production run. In 1988 this company was merged into AWA Defence Industries of Australia. Fairey Air Surveys, Ltd, was initially headquartered at 24 Bruton Street, London W.1. and later at Reform Rd., Maidenhead, with companies across the world. The aircraft (Douglas Dakotas) and technical offices were based at White Waltham, Berks, along with a special research laboratory. Here the company undertook the design and development of anti-vibration isolators which were incorporated into camera mountings. Both mapping and geophysical work was undertaken. The UK based aircraft were sent out to work all over the world. The company undertook aerial surveys for local authorities within the UK and for many overseas Governments. Maps were also published under the Fairey-Falcon imprint. Over the years the companies names were changed to reflect Fairey ownership and operated into the late 1970s, later becoming Clyde Surveying Services Ltd. Fairey Surveys was absorbed into what eventually became Blom Aerofilms. Subsidiary companies were as follows:— Other companies were located in Nigeria, Zambia and the Republic of Ireland. The Fairey factory at Heaton Chapel, Stockport can trace its roots back to when Crossley Bros. Ltd having had by the end of 1916 supplied large numbers of tenders and aero engines to the Royal Flying Corps acquired premises at High Lane, Heaton Chapel to expand production. In 1917, following the Government's decision to build three National Aircraft Factories was taken, Crossley Motors Ltd was formed to manage National Aircraft Factory No.2 as it was known. The factory continued to produce aircraft until November 1918. After the First World War the site switched to vehicle production. The factory was taken over by Willys-Knight and Overland Motors for the manufacture of cars and commercial vehicles and retained by them until 30 November 1934 when it was acquired by Fairey. In 1935 the Fairey company received a substantial order for Hendon night bombers and established production lines at the Heaton Chapel factory. The production facilities at Heaton Chapel were incorporated as the Stockport Aviation Company Limited on 11 February 1936 and the Company took a site at Ringway (now Manchester Airport), where test flights were carried out. After the end of aircraft production the Heaton Chapel works became Fairey Engineering Ltd and began production of medium and heavy engineering including portable bridges for military and emergency services use, notably the Medium Girder Bridge.