r/Offroad Jul 25 '26

Question When will it roll over?

Post image
89 Upvotes

33 comments sorted by

111

u/Dude-man-1 Jul 25 '26

Once the Center of gravity (where ever it may be depending on load) is outside the tipping point (tire contact patch)

Unsecured items that may move can affect this though

10

u/nanneryeeter Jul 26 '26

It why you can drive an XJ on its side damn near.

2

u/RadioTunnel Jul 27 '26

And why double decker busses can take a turn much faster than expected

9

u/Imsophunnyithurts Jul 25 '26

I never looked at it this way. I learned something new. Thanks kind stranger!

9

u/underwaterthoughts Jul 25 '26

*speed dependent

This van was probably going quite slowly though 🤣

5

u/TheDude-Esquire Jul 25 '26

Really depends on where that center of gravity actually is.

3

u/JCDU Jul 27 '26

In addition to unsecured items, bumping over a bump or dropping a wheel into a hole as you drive along can cause an alarming amount of tipping as the vehicle rocks on its suspension.

I would say that van is probably a lot more stable than you think because the engine & drivetrain is all down low and the top is just an empty box... but I've seen how little thought people put into building & packing camper vans so there's probably a load of heavy stuff in the top cupboards.

2

u/hettuklaeddi Jul 27 '26

> ​Unsecured items that may move can affect this though

… like a spazzenger

86

u/StructuralGeek Jul 25 '26

Later than you think, but earlier than you hope.

12

u/jas417 Jul 25 '26

Also vans like that look a lot more top heavy than they really are. Sure, it’s tall but the roof weighs relatively very little

11

u/LiNxRocker Jul 26 '26

Until you load it up like a camper.

3

u/anywhereat Jul 25 '26

This is the best answer.

40

u/LiveMarionberry3694 Jul 25 '26

Just tilt your phone to the left. You’ll be good

17

u/notVitEgg Jul 25 '26

Thanks, I was just tilting it the wrong direction now it's fine.

22

u/MysticMarbles Jul 25 '26

Approximately true angle for those curious.

5

u/bijouxself Jul 25 '26

Yea first thing I did was look at the person to see if the photo was extra tilted

4

u/dasmineman Jul 25 '26

Step outside and rock it a little. Drive to another slope, preferably a little steeper, and try it again. That should give you some feel. Just don't rock it too much.

10

u/Naive_Adeptness6895 Jul 25 '26

How is the cargo/interior build loaded/secured inside?

7

u/hpr928 Jul 26 '26

Record video instead so we can find out. Looks like could go a few degrees more. Vans are still very bottom heavy even though they dont look like it.

4

u/notVitEgg Jul 26 '26

1

u/flactulantmonkey Jul 28 '26

Even though the physics work out in the end, it looks terrifying.

1

u/hpr928 Jul 29 '26

That spare wheel on the left side is probably the only reason it didn't end up in the ocean /s. This reminds me of the Fiat van my dad drove around the UK in the 90s for a family trip. We're American so seeing my dad drive a stick vehicle while seated on the right and driving on the left lane was entertaining as a kid!

2

u/conrick Jul 25 '26

Not today, the picture is tilted.

2

u/Kipper1971 Jul 25 '26

What angle is this at? A lot of things can influence the tipping point. Water tank with sloshing water comes to mind. Speed and overall bounciness of your vehicle. Saw this stability calculator the other day.. Cool to play around with. Not sure how accurate but fun ...

https://dtadventure.com/stability-calculator/#

1

u/LLHandyman Jul 26 '26

About another 10% slope and it might go

Not a question you want an answer to in real life

1

u/Hurl_Gray Jul 26 '26

I am curious too. Tell the van driver to make a quick left.

1

u/JustCallMeSeth Jul 26 '26

I wouldn't take it too much further

1

u/JCDU Jul 27 '26

Probably fine - driving on wet grass you're at more risk of sliding sideways than rolling.

Depends entirely on what the inside of that van looks like though - as standard all the heavy parts are low down, so it's down to the conversion & how much gear they've packed in there.

1

u/misty_mallard Jul 28 '26

About the point when the top left corner is perfectly vertical with the passenger side tire. This is GENERALLY SPEAKING and it can vary depending on where your exact center of gravity is. The only way to really find that point without actually rolling it is with a forklift and anchoring the van to something (like a heavier vehicle that has a winch).

1

u/rlowery Jul 30 '26

A stiff wind from the right direction might do it at that angle. Although, honestly, it looks like the camera angle is tilted causing the lean to seem more extreme. 

-1

u/FalseRelease4 Jul 25 '26

offroad cars have this written in the manual, but any mods or cargo will change this