Yachting



Shortly after the appearance of the boat, people decided to attach a sail to it. So there were the first yachts and light ships. Modern types of them have a deck and a cabin. Yachts do not fulfill the transport function, intended for sports and recreation. On the one hand, these ships are accessible to the masses, even children can walk on them. On the other hand, elite yachts cost millions and are available to the richest people, a symbol of respectability.

Who would not dream of learning to control such a simple but willful ship? The conquest of the sea is not an easy task, and the motor can also help the sail. Yachting has become a popular modern type of recreation. This is available, and romantic, and reckless. This term means river or sea walks on a small ship. Active type of rest allows you to tear yourself away from everyday life, and feel free. But the learning of yachting and familiarizing with it is hampered by numerous myths.


There are no storms on lakes.

The fact that on these waters the banks are located nearby, and they themselves are usually shallow, inspires a sense of security. But it is the small size of the lakes that play a cruel joke with gullible yachtsmen. With the same wind strength, the wave here is three times higher compared to the ocean. The waves are reflected from nearby shores and intensified. Those who are convinced of the truthfulness of this myth, one should walk along the lake with a sail in a strong wind or at least read about the formation of waves.

Yachting

Sailboats always have the advantage of meeting.

In 2011 there was a curious story. The racing yacht “Atalanta Chester” did not give way to the oil tanker “Hanne Knutsen”. And it was the sailor’s skipper who was found guilty of that incident. He was guided by the widespread myth of the advantages of yachts. The matter is that a sailing vessel having engines is already considered to be a normal motor, albeit weakly. In this situation, there is no advantage over other boats at the yachts already.

Before wintering, the yacht must be fully refueled.

It is not recommended to prepare for winter at shipyards. There is an opinion that the full filling of the tank with fuel will lead to the displacement of excess air from it and the reduction of condensate. So it was, until the gasoline was not often diluted with ethanol. On the one hand, he is able to absorb water. On the other hand, getting a lot of water into the fuel will lead to phase separation. Ethanol will be leached out of the fuel along with the octane number and water. In the spring, instead of gasoline in the tank will be on anything unusable liquid. And it will have to be removed with the help of outsiders hired.

Turbine boats are so powerful that they almost take off.

For some reason it is considered that on all turbocharged boats there is either an engine from an airplane or, in general, a jet drive. In fact, almost all such installations that are put on yachts are borrowed from helicopters. Through the transmission and screws, the engines work with water. If the V-shaped drive is engaged in a straight shaft in the slip-wheels, then a BPM drive is used in catamarans, like the 15-meter Mystic Miss Geico, and the screw is partially submerged.

To make the boat faster, it is necessary that the screw has the maximum number of blades.

The fastest boats are racing gliders. But they, accelerating to 300 km / h, have only two blades on their screws. In his book The Nature of Boats, designer Dave Herr generally claims that single-bladed propellers are the most effective. From their use, the effect of strong vibration stops. With the increase in the number of blades, it is possible to reduce the undesirable phenomenon, but also the speed will fall.

Racers on speedboats on the water are most prone to accidents.

The US Coast Guard claims that the main cause of accidents and deaths on the water is not at all increased speed, it is only the third in importance. Much more weighty factors such as alcohol and drugs.It is also known that boats with stationary and outboard engines in accidents are more likely than designs with a swivel-folding column. Specifications say that most powerful boats are equipped with the products of the second type. So, it is rather controversial to claim that high-speed boats are the main culprits of accidents on the water.

The fuel level should not drop more than half.

This myth is based on the opinion that contaminants from the bottom of the tank can rise, which will litter the fuel system. If these unwanted particles enter the engine, it will break. In fact, the fuel delivery system works so that fuel is taken from the bottom of the tank. So the engine always works with fuel from the very bottom and does not experience any problems.

The engine will be destroyed by ethanol.

Marine engines are fully compatible with E10 gasoline. It has an increased content of ethanol, which can do without harm to itself and burn. But if the fuel is stored in the tank for more than a month, problems may arise. The chemical reaction, called phase separation, starts. When the water level in the fuel reaches a certain rate, ethanol will separate from the gasoline and form its own layer at the bottom of the tank. The remaining fuel will lose its octane number and lubricating properties. It can badly affect the engine itself. And even more dangerous is the liquid that will settle on the bottom of the tank. Once in the engine, it immediately destroys it. So “killing” the engine is not ethanol at all, problems can arise with prolonged storage of fuel with an increased content of this substance.

The main sign of driving performance is the deadbolt.

This factor is very important, but not the only one. A huge role is played by the ratio of the length of the yacht to its width. Due to successful proportions, the boat will slow down when you re-enter the wave and go softer. Other factors that should be taken into account when evaluating driving performance are the distribution of the centers of gravity and load on the bottom, the hull contours and the ratio of displacement to length. The balance of all these characteristics and will ensure a comfortable course of the boat.

Yachting is expensive.

It is known that the season of skiing in Vermont for a family of four people will cost 4 thousand dollars. Compared with this, 2.5 thousand for the season of rowing on the boat look not so much. A season ticket for a member of a popular golf club can reach $ 1,500. For the family, however, spending will increase at times. Yachting is a much more profitable holiday.

Four-stroke outboard motors are more economical than two-stroke outboard motors.

To ensure engine power, you will have to burn fuel. Usually, the old carburettor two-stroke and the new four-cycle with the fuel injection system are compared. Fuel economy is ensured by a more advanced fuel delivery system, rather than the number of revolutions per cycle. When comparing modern two-stroke engines of class Evinrude E-Tec and modern four-stroke, the difference will not be particularly visible.

Yachting

To make the boat swim better, you have to wax its bottom.

Alongside riders and sailors, agents who advertise magic wax are always spinning. Ostensibly with his help, you can give the ship a higher speed. But professionals on this advertising are not conducted. Racers have long noticed that the rough bottom is more advantageous for speed than smooth. This is because the air accumulating in the surface roughness helps to reduce the friction of the hull against water. And world champion Gary Bal says directly that grinding the bottom of the boat increases its speed, regardless of the direction (except for the front and back). Profi use the technique of hatching, in which the bands cross at an angle of 45 degrees.

Batteries can not be stored on a concrete floor.

There is no difference where to store batteries – on a concrete floor, a fleecy carpet or a tree. The boards are still insulated with a plastic casing.And this myth appeared when the battery housings were rubber. It was porous and moisture from the cement floor led to the leakage of batteries. But modern plastic cases do not have this drawback, there can be no talk of porosity.

V-shaped body allows the boat to be more maneuverable than catamarans.

Believers in this myth should go for once at the high-speed catamaran class DCB, MTI or Skater. Compared to boats that have a body in the form of a deep V with transverse versions (Cigarette, Fountain or OuterLimits), the catamaran will be much more maneuverable and will accelerate faster. A boat with tunnel type of hull and outboard engine under the control of an experienced pilot can give an excellent idea of ​​how the acceleration of gravity acts. Such a ship will change direction very often.

The Arneson-powered boat will not be able to park.

Multiple world champion and co-owner of the TNT Custom Marine shipyard John Tomlinson suggests comparing the Arneson drive with a “six” or other motor with a partially submerged propeller. Moor in the same way. And in order to ensure better handling when reversing, the screw must be lowered deeper into the water.

It is safer to be on a boat while driving, than next to the quay.

When the boat is near the pier, only the weather threatens it. If the mooring lines and fenders are present, the boat is not afraid of wind or waves, it will not collide with anyone or fly into the underwater reef. And on the move, the integrity of the boat is provided by a variety of other factors. It is important to take into account also the skill of your skipper, as well as the behavior of the oncoming boats.


On a clear day with boat visibility is 5 miles.

This myth is destroyed by a simple knowledge of trigonometry. The radius of our planet is 3,440 miles. It is worth considering this, as well as the height above sea level of the vision organs of a person standing on the deck. And to calculate how many miles of the horizon will be visible, you need to subtract the square root of the “height of the eye”. For a person standing on the deck of a boat, the average value is 6.6 feet. It follows that you can see about 2.5 miles of the horizon ahead. But going up to the bridge, you can see already 3.6 miles.

Yachting

The best corrosion resistance is stainless steel.

Someone at the shipyards prefer to use bronze or plastic below the waterline level. The fact is that stainless steel needs oxygen to resist corrosion. In a place where the accessories go into the case, a damp micro-space develops with a lack of oxygen. Under such conditions, the stainless steel rapidly rusts due to the process of crevice corrosion. Often you can see the tow rings of this material, which are above the waterline level and rusted inside.

The tides come and go.

On the ebb and flow of many erroneous opinions. In fact, it’s all the same long wave. When its crest reaches a certain place, we get a tide. And the lowest point of recession forms the ebb.

You can not go out to sea with just one engine.

If you talk to fishermen or cruisers who were forced to drift with the flow due to the failure of a single engine, then this statement will be confirmed. Just keep in mind that even the presence of several motors on the boat will not help if it has hit the reef or there are problems with fuel. Many tugs, workers and fishing boats are perfectly well served by one engine. And the secret is simple – quality timely service.



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