OT: Physics and Towing ??
Here's a question to ponder.
If you take a vehicle...for ease, say it's a jeep, and you hook up a trailer to the rear bumper of the jeep...and the trailer has an insanely high hitch weight, the rear of the jeep will be pushed down, and the front will be lifted, right? It pivots on the rear axle.
Likewise, if you run a gooseneck hitch, and place the gooseneck right in the middle of the jeep between the driver and passenger, the jeep gets compressed evenly on all 4 corners (roughly).
So here's the question. Imagine we take a piece of the strongest metal in the world, unobtanium, and make a hitch out of it. THe hitch starts with a plate bolted to the front bumper of the jeep, extends forward from the jeep a foot, and then bends down in a U, goes backwards under the jeep, and extends out a foot behind the jeep in the rear. The only place it contacts the jeep is the front bumper attachment. This unobtanium is incredibly strong and will not bend or deflect. If we put a lot of tongue weight on the hitch now, what happens? I have two conflicting theories:
1. The jeep reacts like it would if the hitch were attached directly to the rear of the jeep and the nose raises.
2. The jeep reacts like it's got a heavy weight on the front end, and the rear raises.
Now logically, it seems like #2 can't happen...for the rear to raise (the hitch is attached to the frame in the front, remember), the hitch would raise as well. But if #1 happens, how? How does the frame/jeep "know" the weight is on the rear, if it is being applied to the front? And if #1 happens, it will raise the front of the jeep, which is where the downward force from the hitch is being applied...which doesn't seem right either.
If you can't imagine the hitch as I described it, imagine a J laid over sideways...the long end goes under the jeep, out the rear. The hooked end bends around 180 degrees and bolts to the front bumper.
Something like that.
I Jeep, therefore I am.