Trailer Tongue Weight Calculation.

Rollie NE PA

Well-known Member
Trailer tongue weight calculations. This is what I used for my trailer. It may be hard to read, but oh well.
a165140.jpg
 
Looks to me like a simple "Class 2" Lever. Ref: http://plaza.ufl.edu/luzmaria/LEVERS/class2levers.html

Actual tongue weight is the weight measured on the scale x the ratio of the distances between the fulcrum (deadman) and the measuring device. If the tongue were on the measuring device it would be 100% of reading on scale. If on the Fulcrum, 0%. Anywhere between is the ratio of the two distances. If it were in the center it's be 50% of the reading. If ? distance from fulcrum, 25%. If ? the distance from the scale, 75%.......all "rough order of magnitude" since exacts would include resistances at both ends of the bar and the weight of the bar and all that stuff.
 
Can't read the image.
Bumper pull 10% minimum.
Gooseneck 25% +- depending on what your tow vehicle is.
A dually can handle more than a single wheel truck.

You only have to go down the highway with a tail heavy trailer once to know why adequate tongue weight is important.
 
Well yeah, but when I bought my trailer to haul my tractor I wanted to know exactly how much weight was on the trailer hitch and the receiver so that I met all the limitations/ratings of said equipment. I then knew exactly where to place the tractor on the trailer.
I am hauling a Farmall H with a 7,500 trailer pulled by a 99 Dodge Ram 1/2 ton and I do not have any sway so it paid to setup everything the right way.
 
After you determine what your ideal tongue weight is, use tape measure and measure your rear spring compression. I like to measure the distance between rear wheel and wheel well. My truck is happy with anything between 5/8-3/4 inch compression.

I determine my ideal tongue weight by measuring compression and trial and error; what felt best when towing trailer. Much simpler.
geo.
 
Ok. Not knocking it. Just identifying it for those who weren't aware nor could read your posting....to which you eluded. Glad you made it!
 
Your way is much easier, however if ever something should happen and cause a accident because of improper weight distribution on the trailer tongue, receiver or even the tow vehicle I wouldn't want to be in that persons shoes. It is to easy to be sued these days, I will leave it at that.
 

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