Originally Posted by twobytwo97
Any idea what those ac's weigh? are should I say the 13.5 btu one?
Really does not matter in your case since location (distance from the centerline of the tandem axle group) determines the contribution to tongue weight.
Located forward of the centerline adds to tongue weight; aft removes it. "Moment Arm" (the distance from centerline) is also a factor; the farther the more of the weight is on the tongue; the less the more is on the wheels.
That was just one example. Adding countertops, upgraded fridge, mattresses, the location of kitchen cabinets; just all kinds of things change the dynamics of the final weight distribution.
What is your "as camped" weight?
Multiply that number by 12% to get the optimum tongue weight for best handling. 12% on the tongue and 88% on the campers tires.
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