Dry suit for rafting in cold water - the advantages of a wetsuit over a dry-top

Educational program from the amateur estimata

For a beginner about the basics in the field of extreme and emergency situations, survival, tourism. It will also be useful for fishermen, hunters and other lovers of nature and outdoor activities.

Tuesday November

Rescue immersion suit

Edited 25.1.020

The rescue immersion suit (GTKS) is designed to supply ships and floating craft as individual life-saving appliances and it must keep a person afloat in the water and help him survive in an emergency on the high seas.

An immersion suit must be provided for each person on board.

The immersion suit consists of a jumpsuit that covers the entire human body except for the face, as well as a helmet, boots (galoshes) and gloves. The suit is equipped with detection means (reflective stripes, electric search fire with a water-activated battery, whistle), a lifting device, a safety line and a packing bag.

A wetsuit is made of waterproof materials so that:

  • any crew member can independently unpack and put on a wetsuit without assistance for no more than 2 minutes along with clothes and a life jacket if the wetsuit requires wearing a vest
  • a wetsuit that can be used without a lifejacket must have a whistle (securely attached to it with a cord) and have lights. Each diving suit light must: - have a luminous intensity of at least 0.75 cd; - have an energy source capable of providing a luminous intensity of 0.75 cd for at least 8 hours; - be visible in the largest practicable part of the upper hemisphere segment when it attached to a life jacket. If the light is a flashing light, it must also: - be equipped with a manual switch; - not have lenses or a concave reflector to concentrate the beam; - flashing at a frequency of at least 50 flashes per minute and have an effective luminous intensity of at least 0.75 cd.
  • the body temperature of a person should not drop by more than 2 ° C for 6 hours at a water temperature of 0 - 2 ° C
  • did not support combustion and did not melt if it was engulfed in an open flame in for 2 s.
  • had the strength to jump from a height of 4.5 meters without damage or displacement of the wetsuit
  • ensured the freedom of a person to go up and down a ladder with a length of at least 5 meters, to perform normal duties associated leaving the ship, swim a short distance and climb into the collective life-saving equipment
  • he covered the whole body, except for the face. Hands should also be covered, unless gloves are permanently attached to the wetsuit
  • he had a device in the leg area to release excess air

A diving suit made of a material with thermal insulation properties, by itself or with a life jacket, if the diving suit requires its use, must provide sufficient thermal protection after one jump into the water from a height of 4.5 m so, so that the internal temperature of a person's body does not drop by more than 2 ° C after being in circulating water with a temperature of 0 to 2 ° C for 6 hours in the absence of excitement.

Inspection (maintenance) of the rescue suit

The third mate will check the wetsuits.

Checks are carried out once a month and once every 6 months.

If wetsuits are not older than 10 years, then they are checked every 3 years under air pressure by a special service. And if wetsuits are over 10 years old, then they are checked every 2 years.

There is; is life after covid

Let us tell you why dry rafting clothes are so expensive, are there any cheap analogs, can a dry suit or dry jacket be replaced with neoprene?

Drytop - what is it and what is it for?

Drytop (dry top in translation from English) is an integral part of the modern kayaker's clothing. To be more precise - the upper part of the wetsuit (jacket) for rafting, which can be used as a set with pants or separately.

A person who is not versed in the specifics of modern rafting, be it rowing slalom, extreme rafting and water tourism, rodeo, sup surfing, kiting, sea kayaking, sailing or yachting, will probably be very surprised by the high consumer requirements for similar clothing and no less high cost. Indeed, put on some raincoat and voila. Protects from splashes and precipitation, protects from wind. What else do you need? Everything is so, if you do not spend on water, and sometimes in water, for quite a long time. Especially if the water is cool.

When passing technically difficult rapids, the water often covers the rower with his head, the same applies to traveling by sea in difficult weather conditions. In this case, waterproof clothing is not enough. In an emergency, you will not last long and in sufficiently warm water, hypothermia occurs after a relatively short period of time.

That is why wetsuits appeared at one time, at first just waterproof, rubber, then wet, made of porous chloroprene rubber (neoprene), and with the advent of membrane fabrics - modern dry separate - dry-top and dry pants - or one-piece - drysuits, drysuits - sets.

Since rubber wetsuits are forgotten by most water workers, like a bad dream, let's dwell on the remaining two types. What to choose, a neoprene wet suit or a modern dry suit (dry-top with pants or drysuit)? Objectively, the question of opposing these two options is not worth it, as they say: "every vegetable has its own fruit." We will tell you about each type of wetsuits and help you choose the right one.

Wet Type Neoprene Kit

As mentioned above, neoprene is a special porous material made from synthetic rubber. It does not protect the rower's body from water, quite the opposite - it works only when wet. The task of the neoprene wetsuit is to protect the body from hypothermia. Water penetrates into the pores of the material and is retained there, warming up from the heat released by the body. Thus, an insulating layer is created between the rower's skin and the external environment.

Initially, neoprene wetsuits were used by amateurs of scuba diving and fishing, but water workers very quickly appreciated the comfort of such "overalls" and adopted them.

Neoprene kits, depending on the preferences of the owner and purpose, are of several types:

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