Steam engines powered the machines of the 19th century, and steam engines propelled the ironclad gunboats. Steam produced in the boilers was concentrated in the steam drum and passed through a throttle to drive the pistons of the engine. A connecting pitman arm turned the crank of the paddle wheel.
||Reciprocating steam -- noncondensing
||1 per engine
||4” diameter x 110’ long
Vicksburg National Military Park