M925A2 Roll-Over Angle?

[74M35A2]

Anybody know the recommended max and absolute do-not-exceed driving angle? For example, when driving along the side of a hill. I hope to install an angle indicator, and use it accordingly. Guessing it to be different per vehicle type (less for wrecker, for example).

 

[162tcat]

Don't know but I'm curious myself. Hopefully someone has an answer

 

[KsM715]

There are to many variables. Loaded, unloaded, how high the center of gravity is on the load, speed, ect. The best indicator is seat of the pants feeling. If you feel it's to far over then stop and make a course correction. The angle gauge may say you're ok but if you have a tall load or heavily loaded on the down hill side you may go over anyways.

 

[Warthog]

I agree with KsM715. Too many variables.

Here is the recommendation straight from the TM 9-2320-272-10 Operators Manual

(6) When moving across a slope, choose the least angle possible. Keep
moving and avoid turning quickly.

There is a listing for approach angles but no slope angles.

 

[Tow4]

It probably depends more on who's driving. Some people are more prone to roll than others....

 

[o1951]

That is not a static number.
It changes from truck to truck, depending on loading and what modifications have been made. Anything that effects the CG changes it. Things you may not think about change it - the amount of fuel onboard, number and size of batteries, passengers, tools onboard, loading, tires- singles, taller tires, track width, what is in tow, terrain conditions.

What may get by one day may not the next.

With perfect conditions, with a stock vehicle, I would expect it to roll little over 45deg. Personally, in the real world, I would not take any vehicle over 1/2 that. A low side wheel could unexpectedly sink in a soft spot, or the vehicle bounce on a rock.
If the dirt is wet or loose, the truck could slide. If dirt gets pushed up on the low side wheels, or they contact a rock or log - anything that causes an abrupt stop to the slide, the truck may roll.

I have had too much respect for, and too much sweat into any vehicle I have owned to take that chance.

 

[steelandcanvas]

When you start to pucker up the seat cushion, that would be my limit.

 

[pctrans]

Ask Gimpy...he can give you actual testimony.

 

[Wildchild467]

Higher with your tall tires. You could always do the physics of the CG that is shown on your data plate. Crunch some numbers and it might give you an idea. I go with the pucker factor myself. Never steered me wrong yet!

 

[bricksrkids]

The m939s have no rollover protection, so I wouldn't push it. About 20 degrees in a Land Rover or jeep will make most people run for cover; even though most rovers will handle 40-45 without a problem. A jeep is less. I would not exceed 15 degrees in my 923.

There are just way too many factors: tire pressure, tire condition, soil, speed, load, weight, passengers, traction, leaf spring condition, tire size, center if gravity WITH all the fuel and load, fuel slosh, steering angle, etc.

i saw this post once and it helped me with my Jeep: http://www.tractorbynet.com/forums/safety/293829-calculating-your-predicted-rollover-angle.html

 

[74M35A2]

Higher with your tall tires. You could always do the physics of the CG that is shown on your data plate. Crunch some numbers and it might give you an idea. I go with the pucker factor myself. Never steered me wrong yet!

Says the guy who has actually rolled his MV over!

 

[eaw46]

It does not take much to put it past that point of no return. Eddy

https://www.youtube.com/watch?v=Ngu6hrCCBs8

 

[Wildchild467]

Says the guy who has actually rolled his MV over!

I didn't roll mine over Sally. I slid mine against some rocks at 40 mph. Big difference. haha. Real good way to start a restoration too. I finished it in something like 3.5 months. It was fast!