Quote:
Originally Posted by rostam
Just FYI, there are no standards for calculating the payload. Many people make purchases based on the published payload only to realize the actual payload is much less (sometimes hundreds of pounds less). I really hope, now that the SAE towing standards are adopted by most car companies, SAE focuses on defining a payload standard. Enough people have been screwed by the lack of a standard.
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SAE has defined a standard for TV base weight.
SAE J2807 contains the following:
3.2 TOW-VEHICLE TRAILERING WEIGHT (TVTW)
3.2.1 Tow-vehicles Under 8500 lb GVWR
TVTW is the weight of the tow-vehicle used for EPA emissions and fuel economy certification including all options in excess of 33% sales penetration plus one 68.0 kg (150 lb) driver and one 68.0 kg (150 lb) front seat passenger, plus the tow-vehicle manufacturer’s available trailering package and/or any required trailering content (if not included in the 33% option penetration weight) plus representative aftermarket trailering equipment as specified in 5.2. In the case where a trailering package is not available from the tow-vehicle manufacturer or it does not include a trailer hitch component, the representative aftermarket trailering equipment as specified in 5.2 shall include a trailer hitch component.
However, this base weight parameter is not intended to reflect the actual delivered weight of any particular vehicle. It only defines a base weight to be used for compliance testing purposes.
As pointed out, "payload" information can be obtained from the "maximum weight of occupants and cargo" value found on the TIRE AND LOADING INFORMATION sticker on the driver's door edge or pillar.
Better yet, load the TV as it would be loaded for camping -- including the weight of the WDH -- and head for a scales.
The TV's GVWR minus the measured loaded weight gives the amount of payload available for trailer-induced vertical load.
And when using a WDH, the vertical load might be 20-30% less than the TT's tongue weight.
Ron