Even at a water temperature of 15–20 degrees, being in it after a shipwreck or loss of a swimming means can quickly lead to hypothermia. And long before your muscles get tired due to water resistance, a loss of orientation and muscle coordination can occur. And when the forces decrease, it’s vital to have a craft.
Victim behavior and making an improvised craft while in the water after a shipwreck or loss of a craft.
In the event of a shipwreck, the safest thing is to stay as close as possible to the wreckage of the sunken ship. The alarm given by the crew can be received by the coast guard. Then, nearby ships will go to the shipwreck.
In the event that there are no life rafts or boats nearby, and quick help is not expected, it is necessary to reduce traffic to a minimum. This will help to avoid heat loss. Swimming will be advisable only if the prevailing conditions and temperature of the water allow you to independently get to the shore or rescue equipment.
Cold behavior seizures.
Often while in cold water, after a shipwreck or loss of a swimming tool, the victims have seizures of individual muscles. They are painful. However, they will not be dangerous if they possess behavioral methods that allow them to be eliminated..
If convulsions appear:
In the muscles of both legs. You need to lie on your back and work with one hand. If possible, try to grind and massage the muscles cramped.
In the thigh muscles. Bend the leg at the knee joint and hand press the heel to the buttock..
Calf muscles. It is recommended to bend the leg in the knee joint and pull the fingers of the foot towards you.
In the muscles of the hands. It is necessary to swim on the back, working with one foot. In this case, raise your hands, and the hands continuously squeeze and unclench.
In the abdominal muscles. It is necessary to lie on your back, bend your legs at the knee joints and pull them vigorously to your stomach.
The cooling of victims in the water after a shipwreck or loss of a swimming means stops at temperatures close to body temperature. Therefore, in almost all cases it is necessary to take measures to prevent hypothermia. When rescuers draw near, one must draw attention to themselves by raising their hands, not relying solely on their voice. Or whistle from time to time, if available. The sound of a whistle is heard above the water much better than screaming.
Making an improvised craft while in the water after a shipwreck or loss of a craft.
If after a shipwreck or loss of a swimming facility you find yourself in water without a liferaft, you can use the items left after the disaster to survive.
For example, collect some large cans, barrels. Or any other empty containers. Tie them together. As a result, you get a makeshift buoy. You can hold onto water bottles or put them in clothes after you drink their contents and close the lids tightly again.
Garbage bags are also suitable for this and other purposes, since they are easy to inflate. Grasp the holes with your hands and immerse the bags in water so that you get inflated floating balls. An improvised craft can even become trousers. Many reconnaissance school graduates are familiar with this survival technique..
You need to knit the lower parts of the legs and fasten the fly (with a zipper or buttons). Then, holding the pants by the belt, move them forward so that until the belt comes into contact with the water, the belt will keep air in its legs, preventing it from coming out of them.
Based on the book Survival in the Wild and Extreme Situations. 100 key skills in the special services methodology.