Variable Friction
How to use the greatest feature of a rappel rack. Scott McCrea NSS#40839RL Out-of-control rappels, feeding rope, frustration, and exhaustion are possible results of improper rappel rack use. The friction…
How to use the greatest feature of a rappel rack. Scott McCrea NSS#40839RL Out-of-control rappels, feeding rope, frustration, and exhaustion are possible results of improper rappel rack use. The friction…
Recently, on the Vertical Cavers Facebook page, there was a post about breaking a crossloaded biner with a rack eye. There are documented incidents and fatalities. I even tried it a few years…
I have observed and participated in lots of vertical caving classes, sessions and seminars. I was not satisfied. They could be better. They needed to be simpler. I wanted to…
Here's a QAS someone was using to explore a vertical cave. I never got an explanation about the knots. It is amazing what cavers can get accustomed to and tolerate.…
We all know that rappelling devices can twist the rope. But, how much? We did some backyard testing to gather a little barely scientific data. I think it is safe…
I helped the NC Wildlife Commission with the bat survey and count at Blowing Springs Cave, NC on Feb 4, 2010. We counted over 1500 bats, a lot for a…