Lindbergh's TT With Turning Axle
Just curious, I'm no engineer. I read this article this morning and it shows Lindberg's travel trailer with a front and rear axle. It states it created stability similar to a car or motorhome. Why ...
Forum Discussion
Around airports they pull trains of multiple wagons with tongue-steered front axles, i.e. the baggage carts. They do not tow them at 70 mph, and they don't back up the train, at least not very far.
You could probable design the steering geometry of a wagon to be stable at any particular speed, with compromises on how tightly you could turn it; Double and triple tow rigs pull multiple wagons at speed. The backing problem would be more difficult to solve, maybe lock the pivot at the hitch point.
Even semi-trailers (which is really the geometric class of our RV trailers, fiver or TT) have speed vs stability compromises tunable by weight distribution, hitch to axle length and how multiple axles are suspended in tandem. But the main reason we get what we get in RVs is to control cost to keep prices low enough that we will buy the things.
You could probable design the steering geometry of a wagon to be stable at any particular speed, with compromises on how tightly you could turn it; Double and triple tow rigs pull multiple wagons at speed. The backing problem would be more difficult to solve, maybe lock the pivot at the hitch point.
Even semi-trailers (which is really the geometric class of our RV trailers, fiver or TT) have speed vs stability compromises tunable by weight distribution, hitch to axle length and how multiple axles are suspended in tandem. But the main reason we get what we get in RVs is to control cost to keep prices low enough that we will buy the things.
