Bert the Welder wrote:
Kayteg1 wrote:
COG is about 1/2 way on the main floor, so camper can't pivot on flat, solid surface.
Driving on Alaska highway I did see the nose of my camper "in my line of sight" what also bend rear tie-down, meaning common truck inertia is shooting the rear up, while putting big stress on front of truck bed.
Yes. This is my thinking if the TC is on a flat surface. The front corner of the camper bottom is the teeter-todder pivot point.
I had my rear tie-downs shift out of place once from a big dip and jounce. But only once. Swapped the unsprung chains and turn buckles for fast guns right after that. This is why I'm thinking if you're gonna have just two sprung, they should be the back ones.
All builders use spring loaded FRONT tie downs, not backs. This indicates that the camper does not pivot on the front edge, but somewhere rear of the front edge (CG point). The truck frame is flexible, not a flat absolutely stable surface plate, even though you'd think so... unless and until it has 5000lbs on it.
Generally speaking, everytime I have gone over a bump, I see and feel the back of the camper dip and bounce, not the front, or the truck frame in the middle. You all know the feeling of having someone tug on your backpack, it's the same in a camper.
A flat bed is only flat until you put enough weight on it,
