On shore bases however, the RN would have used tractors, or any other suitable vehicle, when needed, which would have been painted according to the period and the theatre. In the UK, these could have been either Dark Green, Dark Green and Dark Earth wave pattern camouflage, a similar pattern in Dark Green and Black, or Dark Navy Blue. Most tractors were adaptions of civilian agricultural tractors, such as Fordson, although specialised tugs were produced for moving heavier aircraft, mainly, of course, with the RAF and their bombers, the most well-known being the David Brown aircraft tractor.