Sailboat racing
Some kind of boat racing
Mechanichal Energy
You do not need a license to drive any kind of boat.
The Boat, Belly Boat, is powered using flippers from human energy.
Wind power
there are way too ,any variables to answer your question. It depends on the boat, the boat size, weight, kind of prop and pitch etc.
when you decrease or increase speed you are losing or gaining kinetic energy respectively
kinetic energy?
This depends on what kind of prop is used and how much slip in the water it has.
The Venitian Wooden taxi - Venitian GPR Limo
A jon boat is a flat bottomed fishing boat. It is made of wood or aluminium. They may have up to three bench seats for passengers.They are usually 6.1 by 4.1 meters in size. They are not built for speed, they are designed to be slow.