Many of the protocols taught and practiced in the classic rescue diving courses are based on three situations and their derivations:
- Finding a lost dive buddy
- Helping a buddy in distress
- Bringing an unconscious diver safely to the surface.
To some extent, the concepts and skills woven into these courses can also be applied to self-rescue, which means that a well-trained, well-practice, certified Rescue Diver is a good person to have around a dive site. But how well do these “open-water sport diving skills and techniques translate over to the technical diving side of the equation?
In the broadest possible sense, a similar approach can be applied to technical dive teams when they experience trouble in the water. And when quick, appropriate action is needed to avoid serious injury or worse, sport-level training can be of use, but in each of these three basic scenarios, there are some additional factors to consider before rushing in to “save the day.”
LOST DIVE BUDDY
Certainly the basic search techniques for a lost buddy taught in a 올인구조대 class can be employed when searching for a lost technical diver, but there are a few details that mark the search for a technical diver as different, just as a sport dive and a technical dive share some common attributes but are really very different “beasts.”
Technical dives tend to be conducted in deeper water, or in overhead environments, or in harsher general conditions such as poor visibility and colder water: sometimes all of them at once!
Deeper water means breathing gas is used up faster (for both victim and searcher) and decompression obligations grow exponentially (five minutes of extra bottom time can require ten or fifteen additional minutes of decompression time for example). This too is a consideration for would-be dive rescuer and victim.
Overhead environments present their special challenges, and both caves and wrecks require special techniques to be searched safely and productively. Both environments may have complex passages and more than one way back to the surface. The first question should always be, is the lost diver still in there?
In some cases, a lost diver may have reduced visibility to zero by disturbing silt. This can be a double-edged sword. On one hand it can give potential rescuers a clear indication of where to look, but on the other, it greatly complicates the task of finding, communicating and rescuing a trapped or lost diver. Without very specific training, the right equipment and a cool head, this type of rescue can very quickly turn both divers into victims.