slowmover -- There's something I've been wondering...
Suppose the trailer had a retractable skid at the rear, and some feedback loop that fed off the difference between the angle of the front wheels and the angle of the tongue at the hitch. Wouldn't judiciously applied drag cause the trailer to fall in line behind the hitch?
If the contact pad was titanium, as a bonus you could throw sparks at any tailgaters.
