Steering Skateboard

This is a fun invention of mine. The kids call it the Steering Skateboard. It is 3 feet wide by 5 feet long and rides on 18 skateboard wheels. It is powered by a 40 horsepower snow-mobile engine which turns a 4 bladed propeller. We have only had it up to 30 mph in our neighborhood, but based upon its maximum static thrust, it is capable of speeds of at least 55 mph. You can hear it in the video but it is really loud!