English ships In the process of upgrading my ship drawings, I am looking at the ship drawing in Frank Fox's book, Great Ships: the Battlefleet of King Charles II. I have been a strong believer in using proportions, and I am looking at mast heights, positions, yard lengths, and height of yards above the waterline. The proportions seem to vary according to the size of ship. A good source for that is Deane's Doctrine of Naval Architecture, 1670, edited by Brian Lavery.