We use belay device as a mechanical equipment used to control a rope during Climbing. And an ATC or Air Traffic Controller is a type of belay and rappel device introduced by Black Diamond, which is a tubular device gives more area and steeper angles to creat friction and stopping power .
The ATC has found the most commonly used type of belay device, and so the model name of ATC has become synonymous with tubular belay devices.
The original Black Diamond Air Traffic Controller device debuted in 1993, designed by Chuck Brainerd,
The improvement over plate devices is that plates could move down and lock against the carabiner when the rope was pulled hard. By using a tube instead of a plate, the slots were a half-inch above the carabiner and now the rope could be fed under tension. This made belay mechanics much easier. The sharper edge also generates more friction, giving the belayer better control.
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What does ATC stand for in rock climbing?
ATC stands for Air Traffic Controller. Originally, Black Diamond had a specific belay device product named the "Air Traffic Controller", and this design was so popular that every other belay device that followed the same design, regardless of brand, ended up being called an ATC.
Why is the climbing equipment ATC named what it is
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