Tree Climbing Flashcards
What is the primary technique used in tree climbing for rescue?
Single LRL technique
LRL stands for Life Rescue Line
What are the secondary reasons for tree climbing?
- Animal rescue
- Body recovery
What is the acceptable level of risk versus benefit in tree climbing?
- May risk lives to protect saveable lives
- May risk lives a little to protect saveable property
- Will not risk lives to save what is already lost
What should you ascertain when contacting the casualty?
- Their condition
- Injuries
- Ability to assist
- Whether they are using their strength to maintain position
- Risk of suspension trauma
What factors must be assessed during the size-up before climbing a tree?
- Diameter of trunk/branches
- Secondary branches beneath high point
- Tree species
- Overall health of the tree
- Overhead powerlines
- Insect damage
- Surrounding terrain hazards
- Environmental conditions
What types of anchors can be used during tree climbing?
- Vehicles
- Other trees
- Structural anchors
- Constructed anchors
What is the recommended method for accessing high points in tree climbing?
- Physically climbing the tree
- Using a ladder
- Using aerial appliances
What is the maximum height the Big Shot launcher can reliably achieve?
50 meters
What technique is preferred for technicians with a sporting background in cricket or baseball?
Under-arm or over-arm throw
What is the v-throw technique used for in tree climbing?
Achieving height and accuracy
What should be done with the throw line after it reaches the target at a union?
Attach the LRL to the throw line using a clove hitch
What steps should be taken to load-test the branch high point?
- Pull down on the line with three rescuers
- Have a fourth person observe movement
What must be ensured when setting up the safety line?
- No rope on rope
- Belay device is reeved for easy operation
What equipment do technicians require for tree climbing?
- Main line
- Slings
- Tube tape
- Carabiners
- Pulleys
- Strop
What is the first step when using ascenders to climb a tree?
Climb up the opposite side to the anchor
What should be maintained when setting up the level two system from an elevated position?
Two POCs (Points of Contact)
What is critical when operating the main line during a rescue?
- Be aware of the acute angle
- Consider low-point redirects
- Ensure sufficient MA for haul
What should be done as soon as safe when rescuing a casualty?
Attach the strop to secure the casualty
What should be considered if the main line incorporates branches?
- It alters friction
- May create a light belay
- Secondary redirects may be required
Fill in the blank: The _______ technique is an arborist technique effective for achieving height and accuracy in tree climbing.
v-throw
