**CustardAvenger wrote:**
**otherclive wrote:**
Reading this thread serves to confuse me. What’s with all the calculated weights v actual weights. Must be easier with bathroom scales.

I remember reading the article Nigel wrote about the Premium Jockey wheel as I thought it would make checking the nose weight a bit easier (One less piece of kit), but why did ALKO need to make it so complicated! Once you have completed your trigonometry homework you should be ok... but i'll just stick to the Milenco gauge.

I,ll answer Clives point first

The Alko system is always there, and does not require carrying any other form of weight measuring device. But because the jockey wheel is closer the the caravans axles, the torque the distribution of the caravans mass produces will be greater at the jockey wheel than at the hitch which is further away from the axles.

Fortunately the relationship of the distances between the axle and respectively the hitch and the jockey wheel (providing you always align the jockey wheel in the same direction relative to the caravan) will remain constant for that caravan, so using school day lever theory for turning moments in equilibrium:-

length1 x force1 = length2 x force2

It possible to work out a correction factor which will be constant for that design of caravan such that the jockey wheel reading can be multiplied by the correction factor to calculate the true nose load.

In practice you only need to know what the maximum jockey wheel load can be so having done the calculation once, its no different to using a normal nose load gauge and comparing it to the maximum value

CustardAvenger - "Alko" have not made it complicated, exactly the same calculations would be needs to correct for a jockeywheel reading on any other manufacturers chassis. That's just the way it is.

But even the Milenco gauge does snot give a true nose load reading as it doesn't correct for the unknown height difference of the loaded gauge compared to loaded tow ball height of your car. If you have TA that could be a very considerable difference. The Alko system removes that inaccuracy, though there are other considerations that don't make it perfect.