not sure what it takes to flip but we were in a huge storm. wind was in the 60-70 mph area and we were rocking alot and it was kinda spooky but came thru ok. I think there might have been a few gusts in there higher than that.
we had a 34ft travel trailer at the time.
of course the walk after the storm alot of campers lost their awnings :)
one of those usual things, one flipped back right over the camper but many were just hanging mangled. but no trailers flipped.