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Quote: Originally posted by saxo1 on 11/8/2015

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I'll post my comment again here for you as you clearly haven't read it.

We drive at 65% ratio with a twin axle. It's more than stable at 75mph given the right conditions. I wouldn't necessarily drive at this speed in the UK but quite happy to in parts of rural France on toll roads.

If as you say you are towng your carvan at 65% then your max train weight must be in excess of 3500Kg so you would be restricted to 55MPH in France!
saxo1

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Quote: Originally posted by LlaniDavis on 11/8/2015

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If things haven't changed how is it that our American or Australian cousins can manage to tow much larger caravans at much higher speeds than we do? Do they have different "physics"?

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Quote: Originally posted by LlaniDavis on 11/8/2015

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The physics may not change but the things that affect the physics do.

30 years ago I towed a light van with a 1300 Marina and the tail wagged the dog quite often, because there was little available to control the "physics".

Now I tow a bigger van with a modern car. The car has a built-in stabilisation system that takes into account the fact that I have a caravan on the back and can individually brake each rear wheel if it senses "swing" from the caravan. The tow ball has a scientifically designed internal mechanical stabiliser fitted, and the caravan could even have it's own electric stabilisation system.

If things haven't changed how is it that our American or Australian cousins can manage to tow much larger caravans at much higher speeds than we do? Do they have different "physics"?

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Quote: Originally posted by Grampian91 on 11/8/2015

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Quote: Originally posted by LlaniDavis on 11/8/2015

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If things haven't changed how is it that our American or Australian cousins can manage to tow much larger caravans at much higher speeds than we do? Do they have different "physics"?

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Physics have not changed but they use electric brakes. So you can have the trailer brakes being applied whilst your towcar still pulls the vehicle straight.

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