Originally Posted by 68Triumph
Can you please elaborate on the "constraint for driving safety" comment with the extended A Frame campers?
I meant this. TVs are rated for GVW of the camper with a tongue weight rating of about 10% of GVW. The A122s tongue weight, in my experience is about 16% of GVW and that is likely to be the limiting factor on the TV. That is 16% with a full water tanks, without water the % will be greater.
That is if you have a 3500 lbs tow rating, the accompanying tongue weight rating is usually 350 lbs, again in my experience. The A122S with the trunk in use and a battery and propane will be in excess of the TV rating for tongue weight.
TVs that allow weight distributing hitches will have a second weight rating, but owners will need to allow for the rather heavy weight distributing hitch equipment in that calculation.
Airbags and other lift devices do not compensate for an over heavy tongue. As an example on my Tundra, the 420 lbs of tongue weight transfers 180 lbs from the front axle to the rear. That is not an issue in my Tundra, but on a lighter shorter TV it could be.
Each of us should check the the actual ratings and all weights to double check the particular vehicle configuration. It costs less than $20 at a CAT scale to do it right. Because there is no theory or generalization that can override the actual numbers when it comes to making safety decisions. Nor is this to say that sway cannot be an issue with short wheel base vehicles, I just think the geometry and balance of the stock configured A122S makes tongue weight the major factor.