Forum Discussion

camruny's avatar
camruny
Explorer
Apr 06, 2018

RV Stability and Tipping

Hello, after several years of owning travel trailers, we decided to buy a 2017 36' THOR Class A motorhome last summer. Our motorhome is gas powered and built on the Ford chassis. After driving it for several months last summer, I noticed that at times it feels very top heavy. We have visited a few campgrounds that have involved driving and turning on a slope, and the RV feels like its going to tip over.

My questions is, how stable are these RVs? How much incline would it take to roll one over?

I'm sure this is just my paranoia being a first time RV owner, but I thought I would get the thoughts of some people here.
  • Thanks for all of your responses! Definitely good to know it’s probaly all in my head. Sorry for my ignorance, but what is the cheap handling fix?
  • The longer you own/drive your MH, the more things like this you will notice. More than likely, it is rolling onto the bump stops, which is giving you this feeling. The CHF (Cheap Handling Fix) should be done to help reduce, or eliminate this feeling.
  • Just the fact the drivers seat sits higher than the family sedan will make a small lean to one side feel extremely exagerated. I've never seen a motor home fall over unless it was in an accident.
  • you ar NOT going tip over driving around a campground
    OR
    driving the Highways at safe speeds

    evasive maneuvers will create a lot more side to side WHIP than you get with a PU or car

    you just need to get used to it feeling different
  • When you start to get concerned about being top heavy, just think about that guy that drives a cement truck. Now that's top heavy!
  • Ivylog's avatar
    Ivylog
    Explorer III
    Being 8' wide helps too. I bet it's a lot more than 30 degrees. OP, relax until you slide out of the seat.
  • I don't know the answer of exactly how much slope one could take, but if you think about it the weight of a motorized RV is located low. A heavy chassis, engine, transmission, generator, perhaps a full water tank. All of this is generally in the lower 1/3. The upper 2/3's is relatively light compared to the lower 1/3. Low center of gravity should equal a pretty stable vehicle. At least that's my thinking on it.
  • It would take quite an incline to actually roll over; I would guess on the order of maybe 30 degrees or so (which is a whole lot more than it sounds like) in a static/low speed situation. If you're turning at speed, of course you have centripetal/centrifugal forces to also contend with. That said, I don't suggest going out and trying to find the limits; a motorhome is inherently more prone to rollover than a car or pickup, and there's nothing practical that could be done to change that. (Basically, the center of gravity is unavoidably higher with relation to the wheel tread width.) However, in general maneuvering around campgrounds etc. you don't need to worry about tipping over, nor for general driving if you don't try to speed around curves and corners. At least from what I've seen--not a scientific or statistically valid study--I think most RV rollovers are caused by either driving off the road, by sudden turns (like evasive maneuvers), or by collisions with another vehicle.

    Most of what you're feeling is probably a combination of sitting higher up on the vehicle, which magnifies how much sway you feel, and maybe not the greatest roll damping. Upgrading the anti sway bars (and other suspension upgrades) can help somewhat with the latter one.
  • “my paranoia being a first time RV owner,“

    First time RV owner or first time MH owner? I believe it’s the height of the MH that is confusing you. TVs and TTs are much lower. You are higher and notice the increased angle.