Towing Dynamics From Sharp Drive

Towing Dynamics: When towing any vehicle connected to a tow bar, for example trailer, boat, caravan or car with an A-frame connection, momentum of the trailer on the tow bar will tend to push the vehicle to the outside of the corner. Unless the tow vehicle and trailer are in a straight line, under heavy braking the trailer is likely to jacknife. Try to never brake while steering when towing a trailer. Remember, lifting off the accelerator in corners, particularly downhill causes engine braking, which has the same effect.

Always allow extra braking distance before corners, and finish braking before turning in, then use just enough accelerator to pull the trailer around the corner. The extra weight when towing will reduce acceleration, especially uphill. You need to allow more time and space for moving off, merging and moving through intersections.

Using a Tow Rope or Chain: A non rigid towing connection must be no more than four metres, and the towed vehicle must be capable of steering and braking. Try to keep the towline from going slack, to avoid jerkiness and overrunning the tow line. Remember, if the engine is not running there will be no power steering or braking assistance. Those controls will require a lot more physical effort, so to be safe, keep the speed down.

The towed vehicle must have its lights on when they would normally be required, and should also have its hazard lights on. The two drivers should plan a system of signals. The towed vehicle should use the brake and indicator lights  as usual, allowing plenty of warning time. The towed vehicle must have a pre-planned signal, say with the horn, in case it has to stop. The maximum tow speed is 50 kilometers per hour.

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