Another thought comes to mind.
To supplement our CAD drawings, professional sketches by a marine illustrator like Bruce Bingham.
See: http://www.amazon.com/The-Sailors-Sketchbook-Bruce-Bingham/dp/0071550968 and click "look inside".
Bruce is a genius. His drawings and text are so clear and concise. It is amazing what he can convey with so little. You grasp his intent immediately. One one page with one or two drawings, together with text, he can portray a whole project/concept.