As a newbie caravan owner I was careful to stick to towing guidelines - my towing ratio is 84%
But I've been thinking: this ratio has been on the go for decades now, since both cars and caravans were smaller and lighter and much more primitive.
Back then car brakes would have been drum-all-round with tyres the width of a rubber band. Cars didn't have ABS or stability controls, and of course caravans certainly didn't.
Is it time to revisit the 85% rule as being out-of-date?
------------- Camping Gear expands so as to fill the space available for its transportation.
No the laws of physics still stand. Its great having a car with a more powerful engine and huge dustbin lid brakes. But the tyre contact area is still relatively small.
Sometimes the extra width of a tyre is worse than a skinny one.
My mate found that out after sticking silly wide tyres on his escort. He aquaplaned and lost control. Standard skinny tyres would not have aquaplaned at that speed.
ABS can actually extend the braking distance required to stop. What is does it allow you to steer whilst braking where a locked wheel will have little/no grip.
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Agreed, 85% is a good ratio! you can go over it a little I guess if you are experienced, but you don't want something heavier than the car pushing you down the hills!
Saw some dodgy looking out fits while away this week, a small petrol Honda MPV (FRV I think, simular to a Vauxhall Meriva or Mercedes B class in size) and the caravan was a large twin axle Elddis! Mondeo and a twin axle Bailey on the same site. Then we saw a big Sprite Major 6 something or other at the services yesterday being dragged along by an Audi A3.
As Scotty used to remind Captain Kirk in Star Trek every week when I was a kid " you canny change the laws of physics cap'n" or something like that (was a long time ago)