Surface Effect Ship
A Surface Effect Ship (SES) or Sidewall Hovercraft is a watercraft that has both an air cushion, like a hovercraft, and twin hulls, like a catamaran. When the air cushion is in use, a small portion of the twin hulls remain in the water. When the air cushion is turned off ("off-cushion" or "hull borne"), the full weight of the vessel is supported by the buoyancy of the twin hulls.
The SES has two advantages over a hovercraft for open sea operation: it is more resistant to slipping sideways when acted on by air or sea and, and it can use water jets for propulsion since the inlet nozzles are always covered by water.
Read more about Surface Effect Ship: United States Navy, Hovermarine SES Ferries, Operational Use
Famous quotes containing the words surface, effect and/or ship:
“I cannot but conclude the bulk of your natives to be the most pernicious race of little, odious vermin that Nature ever suffered to crawl upon the surface of the earth.”
—Jonathan Swift (1667–1745)
“Considered physiologically, everything ugly weakens and saddens man. It reminds him of decay, danger, impotence; it actually reduces his strength. The effect of ugliness can be measured with a dynamometer. Whenever anyone feels depressed, he senses the proximity of something “ugly.” His feeling of power, his will to power, his courage, his pride—they decline with ugliness, they rise with beauty.”
—Friedrich Nietzsche (1844–1900)
“I would rather not see such winds subside, which carry your slow ship away, although they leave me, cast down, on an empty shore, often, with clenched hand, calling you cruel.”
—Propertius Sextus (c. 50–16 B.C.)