Tireman9 rvtire safety blog) wrote:
https://www.rvtiresafety.net/2018/02/tire-inflation-not-same-for-all-trailers.html
Roger has many articles on reasons for sidewall tire pressures for trailers vs a truck or a MH.
**What we discovered after the overnight computer run, was that in simply S turns (similar to seen in the video) the belts on a multi axle trailer were developing 24% higher internal shear forces than the tires on the truck pulling the trailer.**
Now if the rv trailer owner did something silly like and over tired the trailer such as mounting a load G tire on 6k/5.2k axle then max sidewall pressure will be too much. Then those minimum pressure/load charts plus another 10-15 percent would work best.
Tireman9 tire blog covers many aspects of tires for rvs. And more important the reasons tires on trailers with close spaced axle work in a more severe environment than tires at the front/rear corner on a tow vehicle/MH.
Good read for education purposes from a tire engineer perspective.