I like the idea of creating a data base of blowouts or major tire failures on motor homes because a failure has dire consequences.
From what I have seen and heard, primarily on various web sites, motor home tires should be replaced between six and seven years of age as determined by DOT date. NOT date tires placed in service on vehicle.
I am of the opinion a steering stablizer is an absolute necessity for any large motor home because a front tire blowout will or can cause the vehicle to abruptly dart into oncoming traffic, to the left, OR veer off to the right off the roadway and perhaps into trees, buildings, etc. Remember the event in St George UT where the motor home had a blowout and ended up traveling quite a distance down off the freeway, thru open land and finally stopping in residential apartment garages?
A BLOWOUT ON A LARGE MOTOR HOME CAN HAVE SERIOUS CONSEQUENCES IF NOT PREPARED!!