I have a small bespoke box trailer, which was deliberately made quite "stubby" so I could stand it on its rear end inside the garage. However, I now have the need to be able to carry on top of it an inverted sailing dinghy (a Topper for the cogniscenti; to facilitate simultaneous camping and sailing!), but unfortunately the chassis is too short - if I position the dinghy with its centre of gravity above that of the trailer (ie to avoid applying significant forces to the towball) then the dinghy hits the back of the car.
So I'm wondering if I could safely modify the trailer by simply extending its drawbar, to put adequate distance between the car and the trailer body? At present the chassis has a welded triangular steel frame coming forward from the front of the trailer body, with a short stubby length of steel is bolted to the apex of the triangle, on to which is bolted the towing hitch. So if I was to replace the short stubby length with a longer piece, then in theory that should work. But I'm concerned about messing it up, in that will this affect the trailer's safety/stability when towing? What criteria determine this? is there a 'formula' or is it just a case of intuition and/or suck-it-and-see? Presumably it would be better to modify the triangular frame accordingly, but that would mean major surgery which I couldn't DIY...
Thanks David