On 2014-02-12, Karl Townsend wrote:
I'm looking at hauling a heavy boat (7K with the standard trailer)
2000 miles twice a year...

A perfectly designed 5th wheel or gooseneck would be far more stable
than the standard bumper hitch. I've been looking and can't find one
to copy (my best design method)

Does anyone know of an engineering design service for this project?
I'm very willing to pay for a great design.

7k gross trailer is not a lot of weight for a regular 3/4 ton pick-up
truck. Just have a frame mounted hitch. For added convenience, use a
pintle hitch instead ofa ball hitch. I tow a 10k trailer regularly
hauling a forklift, with a 3/4 ton pick-up, it works just fine if I
drive conservatively.

i