A vessel, including a personal watercraft or pontoon, propelled by any machinery/motor/engine of any description, whether or not the machinery/motor/engine is the principal source of propulsion.The term includes boats temporarily equipped with detachable motors/engines.
(1) Any vessel which is propelled or powered by machinery and which is used or capable of being used as a means of transportation on water. (2) Any vessel equipped with propulsion machinery, not more than sixty-five feet in length.
Any vessel operated upon water that is propelled by sail or machinery, whether or not the machinery is the principal source of propulsion
A motorboat generally speaking is a vessel other than a sailboat or personal watercraft, propelled by an internal combustion engine driving a jet or a propeller. However, the International Regulations for Preventing Collisions at Sea defines it as any vessel propelled by machinery. A speedboat is a small motorboat designed to move quickly, used in races, for pulling water skiers, as patrol boats, and as fast-moving armed attack vessels by the military.