A modular system approach to sot kayak sailing, paddling and mirage drive propulsion. sit-on-top (sot) kayaks are easy boats on which to learn to paddle.. I have launched the little dinghy and posted a video on youtube showing her being rowed and being towed. stitch and glue apple pie dinghy tender. Chesapeake marine design offers a wide range of products and services in boat design and engineering including stock boat plans, custom yacht design services.