Photo 1. Moving the lowering device (LD) to another tree lessened the force on the rigging point and loaded the leaning hemlock in compression along its main stem (green arrow). All photos and diagrams are courtesy of the author. As [...]
Photo 1a: English reeve (above) and Norwegian reeve (Photo 1b, bottom left) systems are similar, but with subtle differences, as described withinthe article. All photos courtesy of the author. Sometimes you arrive at a potential job site where you know [...]
The most important criteria of any rigging knot is to make sure it is tied, dressed and set before use. This means tying the knot in the right way, then aligning all the parts to function properly. TCIA staff photo. [...]
Listen to Lawrence Schultz discuss "Rigging in Tight Quarters", recorded from his presentation during the TCI Virtual Summit 2021 in January. Lawrence Schultz is an ISA Certified Arborist and an ISA Certified Municipal Specialist working as a contract climber in [...]
A branch gone wrong over high-value targets can be a serious problem, but a large piece of wood could be a complete disaster. Know your weights, work loads and forces. All photos courtesy of the author. The space was tight. [...]