ah64id wrote:
The tongue weight had me rather confused as well, but as I raised and lowered the jack on the scale the weight change. My thought is that it took more force to hold it higher, but I can't be certain.
I need to reweigh my tongue since moving some things around, maybe I do some extra tongue weight tests.
How many axles does your trailer have? If it has two, that's why the tongue weight goes up as you raise the tongue. You're pivoting the trailer around the axis of the rear axle, removing weight from the front axle, and distributing it between the tongue jack and the rear axle. If you had a scale under the rear axle while you were raising the tongue, you would see the weight go up there as well.
You're not going to see the same weight shift on a truck camper standing on four jacks (provided you're maintaining approximately equal loading of the jacks) because none of the supporting points are becoming "unloaded" simply by lifting the nose of the camper.
:):)