Tim said: >Probably good enough to bomb Berlin from 18 000 feet tho' if the muse takes you.< The history of bomber command's navigation accuracy prior to the introduction of radio navigational aids suggest that even that is unlikely! Who was it who said " When I hear that the RAF has dropped 300 tons of bombs on Germany, the only thing that I am certain of is that 300 tons of bombs were exported somewhere in the general direction of Germany"? Peter Chadwick Swindon MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.