High speed craft
A high speed craft (HSC) is a watercraft that reaches a certain speed compared to the water displacement it has with the highest permissible total weight and idle drive. The limit to the HSC is defined by a power function , for example 10 m³ around 20 km / h or 11 knots , 100 m³ around 29 km / h or 15 knots, and 1,000 m³ around 42 km / h or 23 knots 10,000 m³ and around 62 km / h or 33 knots demands. That the top speed of a small boat and a large ship does not mean the same thing corresponds to the traditional limits of hull speed .
The two hulls of catamarans are less aerodynamic than a single larger hull at low speeds, but cheaper at high speeds, and allow the traditional hull speeds to be increased to up to 35 knots at 35 m in length and up to 58 knots at 110 m in length. Machine-powered catamarans for high speeds were first developed in Norway since the 1970s and represented around 60% of all high-speed ferries by 2010 . A catamaran can be a comparatively robust and low-maintenance HSC. However, Small Waterplane Area Twin Hulls require mechanisms to stabilize them at high speeds. Some catamarans are also hydrofoils.
- Internationale Maritime Organization (Ed.): International Code of Safety for High-speed Craft . 1995, p. 8-9 ( Google Books ).
- International Regulations for High-Speed Craft - An Overview. (PDF; 59 kB) International Maritime Organization, June 2005, accessed on November 12, 2014 .
- Liang Yun, Alan Bliault: High Performance Marine Vessels . Springer Science + Business Media , New York 2012, Catamarans and Multihull Craft, p. 203-256 ( Google Books ).
- Odd Magnus Faltinsen: Hydrodynamics of High-Speed Marine Vehicles . Cambridge University Press , New York 2005 ( Google Books ).
- 61 ′ Chilkat Express. All American Marine Inc., accessed November 12, 2014 .