The Black Diamond ATC (Air Traffic Controller) is a very slick belay device in use making it easy to pay out fat single ropes quickly when you leader is dynoing for a jug. However the braking effect when abseiling on skinny double ropes is nowhere near that of BD's ATC-XP and similar grooved belay plates and this is not really a device for beginners or those prone to dozing off on belays.
This classic design features a large surface area that dissipates heat when lowering or rappelling, and the smooth-handling geometry accommodates rope sizes from 7.7 mm to 11 mm.
- Unique, smooth-handling geometry.
- Minimalist design is durable in all conditions.
- Large surface area dissipates heat when lowering or abseiling.
- Handles ropes from 7.7 to 11mm - though better on fatter ropes.
Weight: ca 60g.