azdryheat wrote:
RCMAN46 wrote:
Have you ever weighed the trailer and TV. What is your tongue weight percentage? Is the trailer level? Low tongue weight and nose high can cause Porpoising.
Have you considered the placement of the axles on our trailers as the primary cause of chucking, porpoising? Our trailers are like teeter-totters in that they pivot about the axles, which causes the bouncing that we feel in the cab. Yes, we can control pin weight and load distribution but that doesn't offset the placement of the axles, which produce the teeter-tottering effect. I've found the cheapest "fix" is stiffer shocks and airbags to greatly dampen the bounce.
I agree with what you have stated. But I only indicated if the tongue weight is too low the trailer may porpoise. It does not cost anything to move all weight possible from the rear of a trailer to the front of the axles. With most trailers this is possible. Spare tires on rear bumper is a good example. Shocks and air bags will do nothing to help control sway.
I have a link that is very good about this whole problem.
An European take on towing
