where are you going to put all these cars you are hauling?
Christopher McCann wrote:
I think this hitch will work for my 1992 Dodge 1 ton full size van:
http://www.etrailer.com/pc-H~41910.htm?vehicleid=1992797
Now I need a weight distribution hitch...which are here:
http://www.etrailer.com/c-wd.htm
But I am not sure which one to get. Plan on an 18 foot trailer and hauling 116,
123, 126's, etc...that weight range.
Thoughts?
Chris
--- On Thu, 1/15/09, Fmiser <fmi...@gmail.com> wrote:
From: Fmiser <fmi...@gmail.com>
Subject: Re: [MBZ] TRAILER & block heater for Chris
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Date: Thursday, January 15, 2009, 2:38 PM
Christopher wrote:
That sounds really nice. What is a weight distribution
hitch?
To make a trailer dynamically stable, at least 10% of the
mass
needs to be in front of the trailer axles. 15% is better.
50%
is best (it's then called a "semi-trailer"
-like the big
trucks use - rather than a "full trailer"). With
a majority of
the mass in front of the trailer axle, side-to-side
disturbances tend to be self-canceling. With more mass
behind
the axle, the oscillations self re-enforce. This is a
common
cause of upside-down trailers jack-knifed in the ditch.
With a ordinary hitch, mass = weight. So a 2,000 lb (900
kg)
trailer and a 4,400 lb (2,000 kg) car on it the gross
weight
of the trailer is 6,400 lb (2,900 kg). 15% of that is 960
lb
(435 kg). That's how much weight will be on the very
back of
your van. It _will_ raise the front.
The solution is "weight distributing". It is a
bulky hitch
assembly that's commonly seen on camper trailers. With
the aid
of one or two spring bars, tension is applied at the hitch
point lifting the back of the tow vehicle. The result is
some
of the weight is "distributed" to the trailer and
steer axles
- but the mass stays so the stability is not affected.
Now that I have one, I can't see ever doing without it
- at
least when the trailer gross is more than 1/2 the truck
weight.
-- Philip
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Kaleb C. Striplin/Claremore, OK
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84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D,
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_______________________________________
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