Changing from a lower to a raise
The rope team changes over the mainline from a lowering system to a raising system. The rope is locked off in the brake bar (left) and then prusiks and pulleys complete the raising setup. PMR can use 3-to-1, 4-to-1, 6-to-1 or 9-to-1 mechanical advantages in the raising process.
(L-R: Iain Morris, Maria Ochsner, Lancea LaPorte & Tracie Rosenberry)
Photo © Matthew Weaver (PMR)