|
Lots of buyers of RV trailers just don’t understand the trailer manufacturer’s published/recommended tongue weight. They are required to be published because it’s a necessary/mandatory requirement bit of information that must be used for the vehicle certification process. Therefore, the recommendation must be usable. My theory on that is, their computer model will subtract from the cargo capacity until a usable - minimum – tongue weight is established. Then publish the cargo weight. It’s probably why we get so many odd cargo capacities.
Here is the verbatim wording in the standard.
FMVSS 571.120 paragraph S10.2: On RV trailers, the sum of the GAWRs of all axles on the vehicle plus the vehicle manufacturer's recommended tongue weight must not be less than the GVWR.
GVWR is maximum weight, not GVW, delivery weight.
You’re going to find all sorts of aftermarket recommendations on how to predict the actual tongue weight. They are just predictions/ guesstimates. The only way to get a valid answer is from certified scales.
|