Mart whyte via facebook- "thought i’d share another clip of the mini ski boat i built for my kids. to answer the 10000 emails/msgs i get everyday about it,. 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 boat for everyone. boating is a hugely popular recreational activity in australia, with thousands of boats on the water every weekend. the following briefly.