Battle of Britain and Merchant Navy that is . . .
I know the MN is supposed to be about two feet longer than the lightweight Bulleids, but where does the difference occur? E.g. in the boiler length, firebox, etc?
My reason for asking is, I have a MN top and a BB chassis and want to marry the two together to make a complete BB. We are talking Rebuilt style here, but I suppose the answer would relate to the 'spam can' style also.
John