BAE Systems fears thousands of jobs could go in Lancashire and Greater Manchester as a result of expected defence spending cuts, the BBC has learned. An internal BAE Systems document seen by the BBC shows BAE's concern that the Eurofighter project could end. The Eurofighter Typhoon aircraft is partly built in Warton, which employs nearly 8,000 workers. Jobs could go at Samlesbury if the Tornado service contract is scrapped. The cuts could also see the bringing forward of the closure of the site at Woodford, in Greater Manchester, which is due to shut in 2012 with the end of Nimrod production. BAE is worried about the government's commitment to the Joint Strike Fighter (JSF) project, which if axed would also mean redundancies, particularly at Samlesbury. The JSF can gather information from space, land and other aircraft - and then transmit that information to commanders on the ground.