Screw sloop
Encyclopedia
Propeller
A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid is accelerated behind the blade. Propeller dynamics can be modeled by both Bernoulli's...
-driven sloop-of-war
Sloop-of-war
In the 18th and most of the 19th centuries, a sloop-of-war was a warship with a single gun deck that carried up to eighteen guns. As the rating system covered all vessels with 20 guns and above, this meant that the term sloop-of-war actually encompassed all the unrated combat vessels including the...
. In the 19th century, during the introduction of the steam engine
Steam engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...
, ship
Ship
Since the end of the age of sail a ship has been any large buoyant marine vessel. Ships are generally distinguished from boats based on size and cargo or passenger capacity. Ships are used on lakes, seas, and rivers for a variety of activities, such as the transport of people or goods, fishing,...
s driven by propellers were differentiated from those driven by paddle-wheel
Paddle wheel
A paddle wheel is a waterwheel in which a number of scoops are set around the periphery of the wheel. It has several usages.* Very low lift water pumping, such as flooding paddy fields at no more than about height above the water source....
s by referring to the ship's screws (propellers). Other propeller-driven warship
Warship
A warship is a ship that is built and primarily intended for combat. Warships are usually built in a completely different way from merchant ships. As well as being armed, warships are designed to withstand damage and are usually faster and more maneuvrable than merchant ships...
s included screw frigate
Screw frigate
Steam frigates and the smaller steam corvettes were steam-powered warships.The first vessel that can be considered a steam frigate was the Demologos which was launched in 1815 for the United States Navy....
s and screw corvette
Corvette
A corvette is a small, maneuverable, lightly armed warship, originally smaller than a frigate and larger than a coastal patrol craft or fast attack craft , although many recent designs resemble frigates in size and role...
s.
See also
- CSS AlabamaCSS AlabamaCSS Alabama was a screw sloop-of-war built for the Confederate States Navy at Birkenhead, United Kingdom, in 1862 by John Laird Sons and Company. Alabama served as a commerce raider, attacking Union merchant and naval ships over the course of her two-year career, during which she never anchored in...
- USS WyomingUSS Wyoming (1859)The first USS Wyoming of the United States Navy was a wooden-hulled screw sloop that fought on the Union side during the American Civil War. Sent to the Pacific Ocean to search for the CSS Alabama, Wyoming eventually came upon the shores of Japan and engaged Japanese land and sea forces...
- HMS GannetHMS Gannet (1878)HMS Gannet was a Royal Navy screw sloop launched on 31 August 1878. She became a training ship in the Thames in 1903, and was then lent as a training ship for boys in the Hamble from 1913...
, now a museum ship.