Following up on our last post about backup systems. There are a variety of devices and methods for providing a suitable backup during a rescue operation. One method is to use a basal anchored ASAP. In the photo below (from the previous post) we were instructing a Public Safety department in the use of skate block rescue systems.

In the event of a mainline failure, the load can still be lowered down its intended path by utilizing a Munter hitch on the redirect carabiner and performing a release of a captured load maneuver of your choice on the ASAP.

The system can also be easily converted into a twin tension system using a Munter hitch on the redirect carabiner at any time during the operation. 

The ASAP was setup on the backup line which was rigged similar to a mirrored skate block system, but not a twin tension system. This setup allows for reduction of impact forces through reducing slack within the system and by employing a shock absorber.  Also, the backup system will maintain the load in the same space as the mainline in the event of failure.