I'd just like to point out that Woodford, the main assembly plant and airfield for Manchester and Lancaster production, is in Cheshire, not Lancashire. However, A.V Roe lived in Lancashire, not far from what is possibly the World's oldest surviving airfield still in use as it originally was (Barton, near Manchester), and Manchester was/is the nearest city to Woodford, plus the fact that the main Lancaster factories were at Newton Heath, Manchester, and Chadderton , Lancashire.