351CJ

"Rich256" <nospam@nospam.net> wrote in message
news:T4PAf.284842$qk4.198687@bgtnsc05-news.ops.worldnet.att.net...
>
> "Nehmo" <nehmo54@hotmail.com> wrote in message
> news:1137895163.229965.28440@z14g2000cwz.googlegroups.com...
>> "Pull-behind" trailers are trailers that connect to the tow vehicle by
>> a ball (or other attaching arrangement) on the back of tow vehicle and
>> a trailer hitch on the tongue attached to the front of the frame of the
>> trailer. If the trailer is improperly-loaded into a tail-heavy
>> condition (in other words, the center of gravity is to the rear of the
>> center of the axles) arrangement, it will sway from side to side. But
>> why? Why would tail-heavy conditions cause such behavior? The weight on
>> the tongue would be negative, but I still can't understand the swaying
>> mechanism.
>> --
>> (||) Nehmo (||)
>
> Just having the weight behind the wheels in itself doesn't produce the
> sway.
> It allows amplification.
>
> Many things can get the sway started (wind, bumps in the road, passing
> vehicles) and once going the weight unbalance makes it more difficult to
> control.
>
> The trailer is like a pendelum hanging out behind the tow vehicle. The
> closer the weight is to the vehicle the easier it is to control. Try
> holding a board with a weight on it out in the wind. It's a lot easier to
> control if the weight is close in.
>
> The weight and length of the tow vehicle also comes into play. When a
> tail
> heavy pendelum starts to swing it will start controlling the tow vehicle.
>
> The flex of the tires adds more amplificaton.
>
>
> No matter what you do there is always possibility of sway. The amount of
> weight you put on the hitch is a compromise.
> Only total solution is to put all the weight on the tow vehicle and
> elimiate
> the trailer.
>
>

By The Way,

Amplification, this was the only reasonable response to your question...