The real world number for my rig across the CAT scales for my last trip were.
Total truck axel weights equaled 6500#
Total truck and trailer weight 13,080#
So, the weight of trailer was 6580#
Weight of trailer axels 5740#
Weight transferred to WD hitch was 840# about 13% of trailer weight.
The truck's yellow door sticker shows 15,000# max total load, 7200# max total truck axel weight.
Trailer manufacturer's sticker shows gross trailer weight of 7500#
2011 F-150 towing guide states a max trailer weight for my truck is 9800# with 10 to 15 percent on the tongue. However the max WD hitch weight is 1130#.
While I am nowhere nears truck or trailer total limits, I have found I need to watch the rear axel weight. Not because of the WD weight but because of all the camp gear I load into the truck bed that should be carried it the camper.
The CAT scales are your friend when it comes to long distance trips.