it depends on how old the engine is a steam engine is old so it would more than likely be shaft
Robert Fulton was the creator of The Steam Powered Engine Boat.
Ship + Steam Engine= Steam Ship
Steam powers the Steam Engine, which in turn powers the propeller (prop) or paddle-wheel.
to replace the paddle boat and create a faster boat! that was technology back then!
cotton gin steam engine steam boat service telograph
invention of the steam engine.
A steam boat uses superheated water (steam) to turn a turbine. This turning turbine thereby is connected to a engine that uses mechanical means to turn a propeller.
A steam engine
robert fulton
1707
A steam engine
No, he invented the steam boat. James Watt is often credited for inventing the steam engine but he only greatly improved Thomas Newcomen's model.