"A wartime scientist has revisited the secret underground factory where she helped build aircraft engines 70 years since the end of the Second World War. Mary Cartwright was 20 when she was called up to work in the laboratory at Drakelow Shadow Factory in Kidderminster, Worcestershire, in 1943. She spent two years testing metal for Bristol aircraft engines in the site's underground laboratory, working as the only woman in her department. Revisiting the site with her son, David, Mrs Cartwright said it was 'strange' to see it so quiet. She worked as the only woman in its laboratory between 1943 and 1945 Built in 1943, the factory became known as Drakelow Tunnels for its vast network of underground paths spread over three-and-a-half miles. It was one of 26 'shadow' sites set-up to mass produce engines and parts for military aircraft and tanks that were built underground or into hillside so that production could continue if bombed." http://www.dailymail.co.uk/news/article-3053771/Wartime-scientist-91-revisits-secret-underground-factory-helped-build-Lancaster-engines-safe-Hitler-s-bombs.html#ixzz3YHbKdYKe
