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 remains 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. of the Norwegian Navy is a modern SES, the fastest combat ship class afloat at the time of their introduction. 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 it can use water jets for propulsion since the inlet nozzles are always covered by water.

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 remains 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. of the Norwegian Navy is a modern SES, the fastest combat ship class afloat at the time of their introduction. ]] 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 it can use water jets for propulsion since the inlet nozzles are always covered by water.

Hovermarine SES Ferries

The UK based company Hovermarine developed the HM.2 SES ferry at their factory in Woolston, Southampton in the 1960s. The first HM-2 craft was operated by Seaspeed in 1968 between Ryde Pier and Portsmouth Harbour. The early HM2 suffered from mechanical problems and during a financial crisis in 1969, Hovermarine went into voluntary liquidation and the major assets were acquired by a new company, Hovermarine Transport Ltd, this was subsequently taken over by the American company, Transportation Technology Inc. Production of HM.2s for North and Central America was undertaken by Hovermarine's factory at Titusville, Florida. A brief trial of 2 HM.2 took place in Toronto from July to late fall 1974 to Niagara-on-the-Lake to Youngstown, New York. The service managed by Can-Am Hover Express used two craft, Toryoung I and Toryoung II, but an accident with the latter craft led to the demise of the service. Over 110 HM.2's were manufactured in the United Kingdom and United States.

Operational use

References

External links

US Navy's SES-100B Surface Effect Ship ja:地面効果翼機

Text derived from https://en.wikipedia.org/w/index.php?oldid=1353608135 under CC BY-SA 4.0; modifications have been made.