Boat speak terms we use to describe our designs. this glossary was originally published in our webletters. if you have any suggestions for additions, or corrections. Boat plans and boat designs from select naval architects, yacht designers, and marine architects. powerboat plans, sailboat plans, monohull, multihull, and trihull. Design software: aerohydro (marine design and modeling software and services) aerologic (lofting, simulation and analysis software) aeromarine research (tunnel boat.