Noseweight advice

DaveAldi replied on 22/10/2017 12:38

Posted on 22/10/2017 12:38

I tow a 2013 Coachman Pastiche 560/4 with a MTPLM of 1630kgs. I've recently changed my towcar from a Hyundai Santa Fe (Kerbweight 1977kgs and max noseweight 100kgs) to a Skoda Kodiaq Edition 4x4 (Kerbweight 1798kgs and max noseweight 80kgs). Considering the Kodiaq is the current towcar of the year I have been very disappointed with the towing stability of my outfit and despite careful loading and checking of tyre pressures I've had a few episodes of snaking (between 50 and 60 mph in the absence of strong winds), including one event where the car's towing stability assist activated the ABS to bring it under control. The caravan is fitted with ATC and an Al-Ko stabiliser hitch.


I purchased a noseweight gauge and found that the noseweight of my Coachman when totally emptied for winter (apart from two standard gas bottles in the front locker) was over 100kgs.


Please can anyone offer advice, firstly on whether I'm expecting too much of my towcar at a 90% match (bearing in mind I have 30 years towing experience) and secondly whether it's normal to have to remove gas bottles and add "ballast" behind the axle of an empty caravan to reduce the noseweight to an acceptable level. If I remove the gas bottles from the front locker, where is the safest place to carry them?


Thanks in advance to anyone with useful advice.

 

EmilysDad replied on 08/11/2017 15:55

Posted on 08/11/2017 11:09 by lornalou1

cornersteady---just made me laughsmile

does that not make you think that they may not be checking nose weight before the trip to site!!!

Posted on 08/11/2017 15:55

The closest I've seen to nose weight being checked was at Moreton-in-Marsh a few years ago, a little fella trying to lift the A frame/hitch of his caravan. I asked if he'd  calibrated his back recently ..... it went way over his head innocent

replied on 08/11/2017 15:58

Posted on 08/11/2017 15:58

When caravans were just a little lighter lighter and we were a lot younger that was a standard practice for checking noseweight laughing

Lutz replied on 08/11/2017 16:40

Posted on 08/11/2017 16:10 by Metheven

It's still mine, if I can lift it then its all good innocent

Posted on 08/11/2017 16:40

I must admit doing the same. I measure the noseweight accurately now and again just to get the feel of what it should be and from then on if it feels right by lifting the hitch by hand, it's good enough by me. I would think that I'm able to be within ±5kg and that's about as accurate as some gauges on the market.

EmilysDad replied on 08/11/2017 16:46

Posted on 08/11/2017 15:58 by

When caravans were just a little lighter lighter and we were a lot younger that was a standard practice for checking noseweight laughing

Posted on 08/11/2017 16:46

The caravan was anything but lighter & he was anything but younger 😉

EmilysDad replied on 08/11/2017 16:50

Posted on 08/11/2017 16:40 by Lutz

I must admit doing the same. I measure the noseweight accurately now and again just to get the feel of what it should be and from then on if it feels right by lifting the hitch by hand, it's good enough by me. I would think that I'm able to be within ±5kg and that's about as accurate as some gauges on the market.

Posted on 08/11/2017 16:50

I have admit I don't bother at all. It's a twin axle 1600+kg caravan & my back is iffy enough & my car has self levelling  air suspension.

Cornersteady replied on 08/11/2017 19:30

Posted on 08/11/2017 14:36 by Lutz

I'm afraid I don't follow your reasoning. Noseweight is the vertical load applied to the towball on the towing vehicle. The 'perceived' noseweight, as you call it, is the actual noseweight. It is that which determines whether the integrity of the towbar and the underbody structure of the towing vehicle are up to the job that they are called upon to do.

Posted on 08/11/2017 19:30

well I have checked my reasoning with other competent physicists and they agree, I assure you it's correct. You are just jumping to the end result that's all, a correct one but without the full story. Suggest you look here: https://caravanchronicles.com/guides/understanding-the-dynamics-of-towing/

Cornersteady replied on 08/11/2017 19:40

Posted on 08/11/2017 16:40 by Lutz

I must admit doing the same. I measure the noseweight accurately now and again just to get the feel of what it should be and from then on if it feels right by lifting the hitch by hand, it's good enough by me. I would think that I'm able to be within ±5kg and that's about as accurate as some gauges on the market.

Posted on 08/11/2017 19:40

but all you are doing is supporting the van, did you notice a difference btw as you lower and raise through the horizontal as you predict it would ? or did it feel the same? Simple Newtonian physics says it must be the same. Is this some war against Newton? I know you Germans think that Leibniz invented Calculus but this is taking things too farwink

the van when pointing upward is not trying to raise you as it would when connected to a towball is it? Think about it if it's nose up the hitch must take tow ball with it and take some weight off the car's tyres? QED againsmile

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