2 tongue jacks on 1 trailer? - Page 2 - Fiberglass RV

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Old 05-20-2013, 04:40 PM   #15
Senior Member
Name: Russ
Trailer: Scamp 16' side dinette, Airstream Safari 19'
Posts: 588
Originally Posted by Brian B-P View Post
If the jack is a foot back from the coupler, and it is 9 feet from the coupler to the axle, then weighing at the jack produces a reading 9/8 of the correct value (12% too high). You can correct for that, or consider it "not significant".
Yes it's elementary math. I would just factor the indicated scale weight by .9 or so to get in the ballpark.

It has been recommended to put 10 to 15% of the trailer weight on the hitch. Is 15% too much or is 10% too little? It may or may not be significant depending on the ability of the tow vehicle to handle weight or control lateral motions. Every trailer tug combo should be field evaluated to see what works best. My Jeep doesn't know the difference between 270 or 350 lbs. It just doesn't like 250 lbs., as the tail wags the dog!

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