Diving - not just a fad, but a kind of life style. Therefore, swimming should be comfortable, enjoyable, and equipment - robust and sturdy.
Content:
- flipper Device for diving
- Types of fins for diving
- How to choose fins for scuba diving
- Exploitation
- malfunctions
flipper Device for diving
Fins are available in different types depending on public waters and for what purpose you are going to use them. Constructions composed from rowing blade rubbers and with a heel strap. The principle of operation is to create a temporary support for the water from the area and which depends on progress.
Another criterion - the power of propulsion. Stiff blade forms around a large footprint, so to promote a strong push is required. The consumption of energy and oxygen supply, creates acceleration. Exit point for the beginning of the leg work - knees bent position.
Slight movement forward by straightening the legs to accelerate. Movement back in fact. Until the middle of the ascent is incremented promotion, after - in proportion to the reduced effort.
Previously flippers had only one metal buckle. For mounting had to watch the instructor. The new design is equipped with buckles, which quickly will adjust the strap length. For putting on must be inserted in the leg pocket for feet and tighten the strap to remove - simply undo it with one hand.
There were also additional difficulties in replacing the belt. This must be done very carefully: you can buy the item only if it is appropriate to the buckle. Otherwise possible slipping belt.
Spring-loaded parts are used by divers from the 2000s. Their peculiarity is that they slowly wear out and require no special fitting. But for a comfortable voyage still need to wear a belt with thick dense bots.
Ribs system is used as the vertical stabilizer and prevents them from vibrating when moving vertically. The principle of operation is as follows: rib channel water back, helping to move forward, and you do not have to spend extra energy.
The same function is performed by the channel - resistance effectively with him. When the stroke the blade is bent and forms a U shape channel, and exciting water discharging it back.
The purpose of the holes - reducing water resistance. With these details in the promotion spend much less effort. Holes are effective in the operation of flexible models. At the stroke force the upper part of the blade removes water mass forward, passing it through the hole.
Thus, energy costs are reduced. When the return movement they help reduce effort on the rise.
Split-fins reduce water resistance, imparting a shape similar to the whale or fish tail.
Types of fins for diving
opened:
- designed for scuba divers;
- have a rigid connection;
- provide resistance against the motion of the flow.
closed:
- used for diving and snorkeling;
- low efficiency when diving.
Short tight (rubber, plastic)
- used for photographing underwater briefing;
- suitable for training in the pool;
- not suitable for long distances.
Wide flexible composite (rubber, plastic)
- suitable for divers;
- used over long distances.
Wide standard:
- designed for scuba diving.
Long narrow speed:
- suited to scuba dive;
- high speed and low maneuverability;
- not suitable for scuba diving.
monofin:
- used in training speed and swimming in the pool;
- strengthen the muscles of the legs, abs, back;
- using their perfected technology "dolphin".
Depending on the manufacturing material recovered thermoplastic, composite (combined) and rubber fins. The first - for those who have not yet formed swimming style is most often chosen in color. Composite have rigid ribs on the sides with rubber or plastic inserts to the blade.
Rubber accessories - wear-resistantUsed tehnodayverami. Suitable for training - with their help to perform complex elements.
How to choose fins for scuba diving
Look for when choosing to:
1) ease of fixing to the foot (determined by constructional features rubbers);
2) efficiency (it is considered the construction and shape of the blade).
Design with closed heels comfortable with dressing on bare feet. Open dress boots to suit and be sure to come with the regulatory strap.
The size limit for rubber fins - length 60-70 cm, width 20-22 cm..
To ensure flexibility, use a thin and hard plastic and rubber overshoes. Divers recommend the small size fins, providing good maneuverability.
To improve efficiency using the tunnel effect. The internal part of the blade made of a material softer than its side portions. The principle of operation is as follows: the deflection fin forms a trough of water going in the right direction orientation.
For playing speed swimming or exercising in the pool, buy options with a closed heel. For scuba diving models we are used to open the fifth. In addition, please be neoprene socks or boots. Without such devices to swim embarrassing, it will lead to the formation of blisters.
Tips On Choosing Baby fins:
- For their manufacture should be used only safe materials.
- Buy products from soft materials such as rubber, so as not to burden the child toe joints.
- Popular model with closed heel, which firmly fix the leg and provide agility, so the likelihood of injury is reduced while swimming.
- Adjustable last longer because they changed overshoes size by belt.
Exploitation
- Equip models closed the fifth can not delay it back by force. First everted heel inserts his foot into the sock galoshes, and then fix it in the correct position.
- When worn or removing attachments not unfasten the strap from the buckle. This results in a loss of detail.
- Be sure to check whether the size of the blades power the muscles of your legs. If they are weak, it is better not to buy rigid structures.
- Consider the conditions in which you have to swim: temperature water treatment, the nature of the water surface, the presence of flow. Locked options suitable for a relaxed and warm water, adjustable hardier. Their use even in cold water.
- Pay attention to the size. Check to see whether the foot is squeezed, do not hang out at the move.
- After rinse is required to use fins in fresh waterClean them from sand, salt, bleach and dry. Avoid direct sunlight. Repeat these steps, if the design is not operated for a long time.
- Dry products using the stove or heater is prohibited.
- Avoid deformation during transportation and storage.
malfunctions
If you are faced with the problem of cracked bladesIt is possible to drill a hole on each side of the blade and associate flippers. During further use should not be much of a start from the bottom.
Shoe torn. Deal with this will help you latki special rubber vulcanization. Glue them break place on both sides. After that, construction will hold good even in active use.
If the mechanism has broken the strap mountReplace this part of the new.