Boat racing
Racing boats are vessels whose construction is primarily designed for high speed and competitiveness in sports boat racing.
History
The term speedboat appeared about the same time on the concept of race cars, roughly with the development of the internal combustion engine by 1900. This only allowed for the construction of small boats with powerful engines, which on round courses were suitable for race, for example, around buoys.
Racing on the water, there were centuries earlier, for example, between sailing ships and steamers Mississippi or passenger ships in the competition for the Blue Riband. The record attempt for the highest speed reached with a racing boat was operated similarly to the automobiles, in the first half of the 20th century a lot of effort, numerous fatalities among great public interest.
Modern racing boats
Today there are a variety of different racing boat classes. Through the use of helicopters and airplanes in the report about boat races, especially the offshore racing boats such as catamarans and seater were known. Most of today's motorboats are Hydroplanes, which means that the boat used the water only for driving and steering, but not to gain buoyancy by displacement. The goal of Hydroplanes is therefore always to ensure, by means of fluid dynamics for a small area of contact between boat and water.
The fastest racing boats are now driven in the U.S. and reach speeds of over 300 km / h The driving concepts range from two-and four -stroke engines to gas turbines. The boats can only be driven on large, sprawling inland waters due to the high speeds.
Basic shapes
Catamaran
The catamaran has two hulls that are connected to a rigid floor. Compared to the Proprider the catamaran has a much higher stability. The two hulls act like rails. This curve can be moved much closer. The driver sits in the boat and gives her foot gas.
Three -pointer
The three -pointer is a very flat racing boat. The boot floor has a left and right " paw ". At high speed, the boat is only with the two ends of paws and the boat end on the water, hence the term "three -pointer ". For " small " three-point Tern, which are usually boats with outboard engines up to 500 cc, the driver kneels in the boat, guiding it with one hand and operated with the other the throttle. In the "big" three-point Tern, such as the popular in Germany Inborderklasse to 1000 cm ³ or the American Unlimited Hydroplanes the driver sits in the boat and has a "normal" foot throttle.
Proprider
The Proprider ( from the English. Propeller - riding) is not different at first glance from the three -pointer. However, the boat is a little longer and is driven lying on his stomach. Under ideal journey has only the propeller contact with the water. The paws are only the occasional supporting the hull.
Triangular file
The boats have a V-shaped hull as a tour boat. It is also called triangular file. In the appropriate setting of the motor and propeller also this type of boat at full speed lifts almost completely out of the water. The driver sits upright in the boat. In Germany this type of boat is driven with 550 cc outboard motors (class T - 550).
Three -pointer
Proprider
Triangular file
Generally
The first three forms are constructed such that they build up due to the special construction of an air cushion, which minimizes the depth of immersion. The ultimate design is the Proprider in which at full speed only immerses the screw, which is why the speed record for boats with outboard motors - 284.14 km / h - was achieved with this boat shape. All racing boat types have in common is that they are faster, the less water surface they touch. They have therefore not like most tour boats a V-shaped, but a flat bottom. All types produce few waves and have high speed rotating surface propellers.