Screw sloop

USS Alaska, a screw sloop

A screw sloop is a propeller-driven sloop-of-war. In the 19th century, during the introduction of the steam engine, ships driven by propellers were differentiated from those driven by paddle-wheels by referring to the ship's screws (propellers). Other propeller-driven warships included screw frigates and screw corvettes.

See also

• CSS Alabama
• USS Wyoming
• HMS Gannet, now a museum ship.
• USS Housatonic, sunk by the first successful submarine attack.