Snatch straps and kinetic ropes

A snatch strap recovery is the classic way to pull a bogged four-wheel drive free with another vehicle. Done well, it is quick and effective. Done badly, it can damage vehicles and kill. Recovery points have torn off vehicles and towballs have snapped off, flying through windscreens with fatal results.

This guide explains how kinetic recovery works, how to choose a strap or rope, how to rig it safely and how to look after your gear. Please don't learn this from a guide alone: practise under supervision on an accredited course.

How kinetic recovery works

A snatch strap or kinetic rope is designed to stretch. In a recovery, the recovery vehicle drives away from the stuck vehicle with some slack in the strap. As the strap tightens, it stretches, storing the recovery vehicle's kinetic energy. The stored energy then releases, delivering a strong but relatively smooth pull that can free the stuck vehicle more effectively than a static pull.

The same stored energy is what makes kinetic recovery dangerous. If any part of the system fails, such as a strap, shackle, recovery point or the vehicle part it's attached to, the stored energy is released violently, and components can fly through the air at high speed.

Snatch straps versus kinetic ropes

Snatch straps are flat webbing straps, traditionally made from nylon, with reinforced loops at each end. They are compact, widely available and affordable.

Kinetic ropes are braided ropes, usually nylon, which can stretch more and deliver energy more progressively. They often have soft eyes designed to be used with soft shackles, and some have protective sleeves. They tend to cost more.

Both work on the same principle. Whichever you choose, use it within its rating and according to the manufacturer's instructions.

Choosing a rating

Straps and ropes are rated by their minimum breaking strength. Choose a rating appropriate for the weight of the vehicles you'll be recovering, following the manufacturer's guidance, which is usually expressed as a range relative to vehicle mass. A strap that's too heavy-duty won't stretch enough to work properly and will transmit harsher loads. One that's too light may break. If you travel with vehicles of very different sizes, you may need more than one strap.

Choose shackles rated appropriately for the strap, and make sure your recovery points are rated and correctly installed. Every part of the system must be up to the job.

Rigging a recovery

1. Check recovery points on both vehicles. They must be rated and attached to the chassis. Never use a towball, tow hook not designed for recovery, or tie-down point.
2. Connect the strap to each vehicle's recovery point using rated shackles. With steel bow shackles, do the pin up finger-tight, then back it off a quarter turn so it can be removed after loading. With soft shackles, follow the manufacturer's fitting instructions.
3. Lay out the strap straight between the vehicles, without twists or knots, with a little slack as the trainer or manufacturer recommends.
4. Fit a dampener over the middle of the strap.
5. Clear the area. All bystanders should be well away, at least the length of the strap to the side, and never in line with the vehicles.
6. Agree on signals. Use UHF radios. Agree on who will start, and how to signal stop.

Doing the recovery

The stuck vehicle should be in a low gear, with the driver ready to drive gently in the direction of the recovery once the pull begins. The recovery vehicle drives away smoothly and gradually, starting gently. If the first attempt doesn't work, stop and reassess: dig more, lower tyre pressures further or reposition before trying again with a little more momentum. Don't jump to high speeds. Repeated, increasingly violent attempts are how gear and vehicles fail.

Once the stuck vehicle is free, both drivers should stop on firm ground before disconnecting.

Things never to do

• Never use a towball as a recovery point.
• Never join two straps with a steel shackle.
• Never stand near or in line with a strap under load.
• Never use a damaged strap or unrated shackle.
• Never use a snatch strap for towing on roads.
• Never tie a strap to a vehicle using a knot around a bar or axle.

Joining straps

Sometimes one strap isn't long enough. Joining two straps with a metal shackle is dangerous because the shackle becomes a heavy projectile if a strap breaks. Common recommendations are to loop the straps through each other with a soft object, such as a rolled-up magazine, in the join to make it easier to separate, or to use a rated soft shackle designed for the purpose. Check your strap manufacturer's guidance.

Looking after straps and ropes

Nylon is damaged by heat, abrasion, chemicals and prolonged sunlight. After use, wash sand and mud out in fresh water and let the strap dry in the shade before storing it in a bag. Sand particles inside the fibres act like sandpaper. Keep straps away from sharp edges and hot exhausts. Inspect them before and after every use, and replace any strap with cuts, abrasion, burns, broken stitching or that has been through an exceptionally heavy recovery.

When not to snatch

Kinetic recovery isn't always the right choice. If the stuck vehicle is deeply bogged to the chassis, hanging off a ledge, at risk of rolling or likely to be pulled into a hazard, a slow, controlled winch recovery may be safer. Sometimes the right answer is to wait for help.

Recovery accidents

Serious and fatal injuries from vehicle recoveries have prompted repeated safety warnings from coroners, motoring clubs and trainers. The common factors are unrated or unsuitable recovery points, towballs, metal shackles used to join straps, excessive speed and bystanders standing too close. Each is avoidable. Treat every kinetic recovery as a potentially dangerous operation, even if it's the hundredth you've done.

Practise in safe conditions

The best time to learn is before you need to. Practise rigging and recovering on a course or club trip, on flat ground with experienced people watching. Get familiar with your shackles, dampener and recovery points so you can rig a recovery quickly and correctly in poor light, rain or soft sand.

Common mistakes

• Using a towball or tie-down point.
• Too much slack and too much speed.
• Joining straps with a metal shackle.
• Spectators standing close to film the recovery.
• Storing straps wet and sandy.

Key points

Snatch straps and kinetic ropes store energy to pull a stuck vehicle free. Choose a rating that suits your vehicles, use rated recovery points and shackles, fit a dampener, keep bystanders well clear, start gently and look after your straps. Get trained before you need to use one.