Quote:
Originally Posted by MattHelm21
Do I see an error in your way of doing this calculation? No one is likely to ever be at a published dry pin weight at GVWR. 1805 divided by 11965 is only 15 percent pin weight which is below minimum for a fifth wheel. So doing the math while properly loading this trailer at 20% minimum pin weight, 11965 X .2 = 2393. Using your formula, 11965 - 2393 = 9572. 9572 should be the maximum load on the axles and divided by 4 would be 2393(interesting coincidence pin vs tire?). With the tire max load as 2540 and axles rated to 10160 total, that does leave a margin for error. It isn't great but if every part does its job as designed, these numbers should work with this trailer.
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The published hitch/pin weight is a mandatory figure the trailer manufacturer
must provide to comply with certification regulations.
I've done some numbers on a lot of Keystone RV trailers and for the fivers the Keystone average is something between 14-17%. It's realistic and obtainable.
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