Oarling 17 – s & g: sleek lines and beautiful sheer make the oarling a delight to row and own. she is light, responsive and easily maneuvered, providing great. Proven boat designs, and how-to information for boat building. boat plans are for beginners and have been built by thousands since 1953.. Boating terms begining with d. dacron a synthetic polyester sail cloth. daggerboard a narrow blade shaped centreboard which is raised vertically..