Engineers Nick Dean (L) and Dave Smith (R) work on the tail of a Supermarine Spitfire MK18 at the Aircraft Restoration Company in Duxford, southern England September 3, 2013. The Aircraft Restoration Company, based in Duxford Airfield, southern England, is a specialist engineering firm that repairs and restores historic aircraft, including the iconic World War II fighter plane the Spitfire. There are no factory replacement parts remaining for the old aircraft, and new elements have to be built by hand. The company's engineers use traditional manufacturing techniques, and the firm provides apprenticeships for young people, allowing these skills to be passed from generation to generation. Smith, 55, likes the technical challenge of building Spitfires "You have freedom to use your entire skill set - every part is made by you using the whole background of your knowledge. This ability to make bespoke engineering parts might disappear unless it is passed on" he said. Picture taken September 3, 2013. REUTERS/Neil Hall (BRITAIN - Tags: ANNIVERSARY BUSINESS MILITARY SOCIETY)