|
Hi 2air; I believe that you have nailed it down to the source of the problem. If you are late for very important corporate meeting, leave your As parked.
With the TV rating capacity and running gear maxed out, why would one want to travel at 85 mph? You're vacationing aren't you? Don't you want to enjoy the scenery instead of developing white knuckles?
I am glad that you have brought to attention the tire inflation logic.
Most, will inflate the tires to max pressure, needed or not. Often we see 3500 lbs boat traiers with dual axle and D tires inflated to 65 PSI. Result, sheared bolts, loose windshields and stressed out trailer frames from vibration. Heavy sidewall tires such as D and E rated tires having more rubber retain heat more so than lower rated tires. As you have pointed out it is very important to adjust the inflation rate to the weight they need to carry. Over inflating the tire, stresses the integrity of cordage especially when exposed to high heat factor. Towing a 42' Fountain weighing 11000 lbs on a tri axle with ST225/75D15 radials for past two years, each 2450 lbs capacity tire carries 1833 lbs at 50 lbs with no ill effects. It should be said here as well, that winding roads do have a considerable affect on tri axles in build up of heat.
It is very possible that the failures are tied exactly to what you have pointed out. Good post 2air. Thanks "Boatdoc"
|