ISA Logo
About ISA  •  Find an Arborist  •  Newsroom  •  Job Bank  •  Contact Us  •  LOGIN
Join ISA

Subscribe to this podcast.

Climbing and Rigging

This ArborPod™ series offers videos that can help an arborist identify parts of a line; select and use the appropriate knots; and learn about other equipment, resources, and techniques valuable in a variety of climbing and rigging scenarios. Click on the headphones above to subscribe to this series!

Notice to viewers

If you have comments or a favorite topic in arboriculture that you would like to learn more about, please contact us at

NameReleasedDescriptionAudio FileCEU Quiz
Speedline part 1 November 26, 2014 Ken Palmer and Rip Tompkins show a safe and effective way to speed-up moving large limbs from tree to ground with a re-directed speedline. In part 1 Ken lays out the hardware and ground set-up needed to safely fly large pieces of wood down from the top of a tree. Play

Spider Balancer and Drift Line part 2 October 24, 2014 Rip Tompkins completes the delicate task of lowering a large multi-limbed branch away from obstacles using a spider balancer rig and drift line. This episode completes the two part series on this complex rigging scenario. Play

Spider Balancer & Drift Line-part 1 September 26, 2014 Large multi-limbed branch to remove with targets below? Rip Tomkins walks you through part one of the Spider Balancer and Drift Line Techniques in this episode of Climbing and Rigging Play

Static Removable False Crotch August 22, 2014 How do you cut the forces on a limb in half and increase rigging efficiency? Watch as Ken Palmer demonstrates the installation of a Static Removable False Crotch on a limb high overhead. Play

Drift Line July 25, 2014 How do you lower a large cut limb without disturbing the branches below? Rip Tompkins demonstrates the drift line technique using two anchor points to fly a limb to a safe landing spot. Play

Fishing Pole Technique June 27, 2014 What do you do when you have to rig out a large limb with no anchor points above the work? Ken Palmer explains the Fishing Pole Technique that reduces forces in a system while safely rigging large sections of a limb for removal. Play

Mechanical Advantage: Part 2 May 23, 2014 Ken Palmer concludes the two part series of creating and using mechanical advantage in tree work. In this episode he uses multiple pulleys to dramatically increase the output force applied to a rope. Play

Purchase Quiz
Mechanical Advantage: Part 1 April 25, 2014 Arborists can pull on a rope with the force of their weight, but how can they create a greater output force with the same amount of weight? Ken Palmer discusses the basic setup of a mechanical advantage in this first part of a two-part series. Play

Fiddle Blocks March 28, 2014 Fiddle blocks are a great tool to help control the lowering of a large limb. Scott Prophett demonstrates how to get a 5:1 mechanical advantage using a fiddle block. Play

Tip-tie & Lift: Part 2 February 28, 2014 Rip Tompkins explains tip-tying limbs in this continuation from Tip-tie & Lift: Part 1 (released 24 January 14). Watch the conclusion of this segment as Tompkins makes the hinge and backcut on a large limb. Play

Tip-Tie & Lift: Part 1 January 24, 2014 Rip Tompkins explains the value of tip-tying a large limb during a tree removal. Learn about force and how to change the moment arm based on placement of the cuts on this episode of Climbing and Rigging. Play

Bend Ratio, Rope Angles, and Reaction Forces December 27, 2013 On this episode of Climbing and Rigging, learn how the bend radius of a rope affects the fibers. Ken Palmer explains rope angle and reaction forces in a way that makes them easy to understand. Play


©International Society of Arboriculture 2009-2014
PO Box 3129 • Champaign, IL 61826, USA • +1.217.355.9411

Email comments and questions to ISA
Friday, December 19, 2014 9:48:14 AM (CST/ISA Headquarters Time)
Please click here to view our privacy policy.