Forum Discussion
Ron_Gratz
Dec 27, 2014Explorer
LarryJM wrote:Larry, your statement is incorrect. You need to re-read what Ron posted.
---The argument that the hitch is not part of the tongue wt. is something that even Ron disagrees with and he even adds some of the HA/PP hitch wt. to the tongue wt.---
I can appreciate what that document Ron referred to, but it's not IMO univerally use and is woefully out of date with the last revision being almost 40 years ago.---Well, you're welcome to your opinion -- but I think all the manufacturers who continue to rate their towing equipment based on VESC-5 and its SAE look-alike, SAE J684, would argue that the VESC-5/SAE-J684 testing protocol IS universally accepted for its intended purpose.
The only criticism I could find of VESC-5/SAE-J684 is that it only covers trailers up to 10,000# GVWR.
The need to have a rating system for heavier trailers is discussed in How Hitch Manufacturers Are Designing Class-V Hitches To Extreme Capacity Levels
However, the bottom line is that VESC-5/SAE-684 specifies that WDH test moments are based on trailer tongue weight and NOT on tongue weight plus the weight of the WDH.
Ron
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