Why should hook-type carabiners be avoided when using the cylinder wrap?

Hook-type carabiners should be avoided when using the cylinder wrap because they can accidentally disengage. This is a significant safety concern in rapid intervention scenarios, where securing equipment is essential for the safety of both rescuers and those being rescued. The design of hook-type carabiners can lead to a scenario where they may catch on other equipment or objects and inadvertently open, resulting in a potentially dangerous situation where the rescue system could fail.

In contrast to screw-lock carabiners, which have a mechanism to prevent accidental opening, hook-type carabiners lack this feature, making them unsuitable for secure connections needed during operations involving high stakes, such as those handled by Rapid Intervention Crews. Proper equipment choice enhances safety and effectiveness in rescue operations, underlining the importance of selecting carabiners that ensure secure locking mechanisms.