QUOTE (Bill K @ Aug 10 2009, 12:06 AM)

Floyd,
Do you know if the frame on a 16' is the same size as on a 13' ?
The reason I ask is that my tongue weight is 325 lb. on my 16' and my class three hitch is only good for 300 lb. ball weight and 500 lb. WDH.
So I use a WDH.
Bill K
The frame tubing on a Scamp 16 is the same size as the frame tubing on a Scamp 13.
(1-1/2"X3")
You don't say what your Tow vehicle is, but if you have a 16 Scamp then 325# tongue weight likely is more than is really needed for safe towing,but certainly within a safe range for your frame. While weight distrubuting hitchs are wonderful devices, they do leverage against the trailer frame and the TV chassis, generally shifting weight to the trailer axle and the TV's front axle. If you choose the appropriate WDH, and the trailer axle is not near capacity, then that may not matter.
What you have is either an unusual rating on a Class III hitch, an odd vehicle or OEM application ,or a mistake in reading the literature.
Class I hitches usually ( by industry standards) have a rating of 2000# trailer weight and 200# tongue weight
Class II hitches usually (by industry standards) have a rating of 3500# tow capacity and 300# tongue weight capacity.
Class III hitches are usually rated (by industry standards) [at] 6000# tow capacity and 600# tongue weight.
Higher ratings are definitely overkill for a Scamp.
Now I am referring to hitch capacity which is not always the same as the capacity of the vehicle to which it is attached. Also one important note...
Class III hitches are rated weight carrying (WC) and weight distributing (WD) depending on the vehicle and hitch specifications.
Not all Class III hitches are rated to be both.
I'm sure that your system works fine and is safely within all limits when properly adjusted, but I have seen cracked frames on several makes of smaller fiberglass trailers [although this is rare and the Scamp frame is among the best], I think it is important to be aware of the dynamics and stresses involved and to choose A WDH with near the minimum capacity for the application. This sounds like what you have done.
I was surprized to see a WDH with a rating as low as 500# [like yours]
Done right, it probably won't over strees the frame at all , my comment was based on what I know of the standard capacity of a Class III hitch and the tongue weight of a properly loaded Scamp.
Upon reexamination, I would add to my comment..."" unless one is careful to choose the WDH which is engineered for the smaller lighter frame of the fiberglass trailer"".
There is a wider variety of WDH's out there than I was aware of , especially the small ones!
Thanks for your remarks, I have learned something in the process.