How to Tie the Double Figure Eight Loop

 

Usage

The Double Figure Eight Loop, also known as Bunny Ears, is a secure and flexible knot that creates two fixed loops. Commonly used in climbing, rescue, and utility work, this knot is generally used for equalizing loads across two anchor points. Its stability and non-collapsing design make it a reliable choice for distributing tension while ensuring safety in high-stakes scenarios.

Why Learn the Double Figure Eight Loop?

This knot is perfect for creating anchors or attaching multiple lines. Its straightforward structure and ease of inspection ensure confidence, even in critical applications like search and rescue or climbing.

Common Uses

• Climbing and Mountaineering:
  • Equalizing loads between two anchors.
  • Securing climbing harnesses with dual loops.
• Rescue Operations:
  • Creating stable attachment points for securing loads or people.
• Utility Work:
  • Distributing tension in rigging or hoisting systems.

ABOK Number  (Ashley Book of Knots)  #1085   Other Names Bunny Ears Y-Hang Dog-Eared Loop   Type Multi-Loop Knot Secondary Knot Type Anchor/End Loop Knots

Notable Features

• Dual Loops: Provides two stable and non-collapsing loops for secure attachment.
• Load Distribution: Shares loads equally between loops, minimizing stress on anchor points.
• Reliable and Versatile: Performs well in dynamic and static situations alike.

Variations

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Similar Knots

Double Alpine Butterfly Loop vs. Double Figure Eight Loop

• Pros: Easier to tie mid-line.
• Cons: Lacks the equal load-sharing capability of Bunny Ears.

Bowline on a Bight vs. Double Figure Eight Loop

• Pros: Quick to tie with a simpler structure.
• Cons: May collapse under uneven tension.

French Bowline vs. Double Figure Eight Loop

• Pros: Adjustable loops for varied applications.
• Cons: Less secure under heavy loads.

History

The Double Figure Eight Loop is a variation of the standard Figure Eight Knot, designed to provide two secure loops for load distribution. Originally used in climbing and caving, its reliability has expanded its use into rescue operations and rigging. This knot remains a favorite for its balance of simplicity, strength, and versatility.

Security Level

The Double Figure Eight Loop is highly secure and resists collapsing, making it suitable for high-stress applications. Its non-jamming design ensures it can be untied easily after use, though proper dressing is crucial for maximum safety.

Downsides

• Complexity: Can become cumbersome to tie under tension.
• Precision Required: Requires careful dressing to ensure equal load distribution.

Structure

1. Start with a long bight of rope.
2. Form a standard Figure Eight Knot, leaving enough rope to form two loops.
3. Feed the bight back through the Figure Eight to create twin loops.
4. Adjust the loops to equal size and tighten the knot securely.

Pro Tip: Practice adjusting loop sizes evenly to maximize load distribution and stability.

FAQ

What is the Double Figure Eight Loop used for?

It is used to create two secure loops for climbing, rescue, or utility work.

Is the Double Figure Eight Loop easy to untie?

Yes, unless it has been subjected to extreme loads, making untying slightly more challenging.

How does it compare to the Double Alpine Butterfly Loop?

The Double Figure Eight Loop is better for equalizing loads between two anchors but less versatile for mid-line use.

Can it handle dynamic loads?

Yes, its structure resists collapsing and can handle dynamic and static loads effectively.

Important Notes on Safety

The Double Figure Eight Loop is a reliable choice for creating dual loops in a rope, but it must be tied and dressed carefully to ensure stability. Avoid using it in situations where loops may experience extreme or sudden loading without additional backup systems.