Adapted to the use of outboard motors from 1 to 24hp, the utility runabout will plane safely, at speeds from 5 to 45 mph and easily carry four or five persons depending upon its power. this motorboat plans is designed to eliminate difficult joiner work, the "shore lark" is easy to build and presents a lightweight sturdy hull that one can build for a fraction of the amount he would have to pay for a finished boat of this type.. Power boats between 26′ and 35′ long. some with cabin. mixed types and purpose, outboard and inboard.. Available as plans. scarlet macaw 33 – with over 500hp of diesel power under the throttles, the scarlet macaw 33 is the boating equivalent of a 7 series beemer. big, fast, agile, comfortable, and polished. topknot 10 meter – the topknot is a classic ‘picnic boat’ style cruiser with modern power and amenities..