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Hull speed can be calculated by the following formula: where is the length of the waterline in feet, and is the hull speed of the vessel in knots. If the length of waterline is given in metres and desired hull speed in knots, the coefficient is 2.43 kn·m −½.
For example, a piston in an automobile engine which has a stroke of 90 mm will have a mean speed at 3000 rpm of 2 * (90 / 1000) * 3000 / 60 = 9 m/s. The 5.2-liter V10 that debuted in the 2009 Audi R8 has the highest mean piston speed for any production car (26.9 m/s) thanks to its 92.8 mm stroke and 8700-rpm redline. [1]
With the entry limit of 300 filled within 24 hours, over 100 boats on the waiting list and entries from multihulls, IMOCA 60s and Class 40s still coming in, demand for places in 2013's Fastnet Race has been at its highest level thus far.
Although a bit of a misnomer as the boats aren't without limits, unlimited hydroplanes have much fewer restrictions than with limited hydroplane racing. These 30 foot, 6,800 lbs boats most often powered by a Lycoming T55 -L7 turbine engine (used from the Vietnam era to the present day in the CH-47 Chinook military helicopter ), which is capable ...
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Jetsprint or sprint boat racing [1] is a form of motorboat racing in which jetboats, with a crew of two, race individually against the clock through a twisting series of channels in less than a metre of water.
The bodies were discovered hours after the empty boat was spotted in the water. Empty fishing boat going in circles leads to discovery of 2 bodies, Wisconsin cops say Skip to main content
The 30 footer has a range of 130 nmi (240 km), and most standard operating procedures dictate that the boat not go more than 20 nautical miles (37 km) offshore without a waiver granted from higher level commands. The fuel capacity is 78 gallons at 100%, and the vessel is generally operated with a crew of two, a surfman and an engineer.