Links to dory boat plans, many free dory boat plans, boat building information including plywood stitch and glue.. How fast does it go? for estimating the speed for small outboard planing boats see planing speed boat chart. this chart should be used for. A smaller 13′ version of the chesapeake crab skiff. little crab is a smaller version of the chesapeake crab skiff i drew several years ago. bill page, boatbuilder.