Roll greater than 30º on trails doesn't set off the airbags :-)

Jeep caught fire? Wtf how?

 

Your wallet your decisions. Personally I have seen shit go sideways by careful people who then lose their shit at the end results they weren’t ready to accept. So go ahead and calculate everything and stay 5 deg away from danger like you plan. If it works out for you then great. If it doesn’t then I guess you will know

 

Odds are, pucker factor will stop me before calculated driving will. I only really push it when I have a trusted spotter that is much more experienced in offroading than I am. If I wanted to be more careless when wheeling I would have kept my old 1st gen 4runner. But I do like to be able to look at a tough line and give it my best. My Tacoma is more or less stock (small lift, tires, and sliders) but it does pretty good until I try to keep up with the long travel jeeps with good drivers.

 

Torn trans cooler line, sprayed onto hot cat - fire.

 

As a theoretical physicist I approve this post.

 

I need an explanation of string theory in one paragraph please.
Cmon, I explained rollover lol.

 

Same exact principle. Jack up the truck on a flat surface and it will rollover when the static angle is exceeded. Once the CG point passes through the vertical line from the pivot point (the opposite tires in this case) the truck will roll. At any point up to then the truck will drop back down on the jacked up side if the jack is removed.

 

Brutal

 

I'd say a pretty good estimation of rollover would be to measure the middle top of your grill. Or hood latch.
If that goes over your tire (vertical angle) youre probably going to have a bad day. This assumes you dont have 600lbs of gear on a roof rack...

I dont have a tacoma but I just measured my work truck (old silverado) and get approximately 40 inches high and 40 inches sideways to the wheel. Which would mean 45deg. (Thats good because ive probably had it on 30 deg slopes). Also, good luck keeping traction on a 45 deg slope.

Only way to find the CG of your truck is to weight each wheel flat (get x and y CG) and on a known incline (get CG height) then do math.

Till then just pick a spot that looks good (hood latch) and is probably higher than the true CG for safety.

 

Also more notes: be careful. Dynamic forces aren't simple "add 5 pounds here and 75 pounds there". Its mostly based upon percentages and sine waves (non linear) and squared forces (speed). Please please give yourself a good safety factor because physics doesnt care. And Murphey is an asshole.

 

I’d love to hear the story of how you rolled a 22’ box truck lol

 

"String" is a misnomer; it is a term used to distinguish a normal particle from the particles in this theory. In standard physics a particle (like light) has four main properties: location in space, charge, gravity, and location in time. This exists in the world we can readily understand - four dimensional spacetime. Up/down, left/right, in/out, and time of observation. We will also observe the gravitational impact the object (how "heavy" it appears", for example). A "string" particle exists in only one dimension from our perspective - so it is either up/down, left/right, or in/out but not all three. It's not anything we can readily picture, so here's where it starts getting weird. In that one dimensional space that we cannot comprehend this "string" can be pictured in a three-dimensional way with up/down, left/right, in/out ... but in directions that are not visible to us. How the "string" is positioned within that imaginary three-dimensional state inside of a one-dimensional state gives a unique property to the "string" when observed in our standard three-dimensional universe. There are complex naming and modeling conventions used to describe the three-dimensions within each of our traditional dimensions, and these are used to help understand how something like gravity actually works (perhaps a "string" in our left/right dimension with a up/down and in/out component only where it is shaped like a flattened football is what makes gravity). If you imagine that in each of our three dimensions there exist three more dimensions then what we have is a nine-dimensional space for strings to inhabit, and since they can move within our three-dimensional realm they must experience time - meaning that strings "see" a total of ten dimensions. There are even more highly complex theories of string theory that postulates that within each of the dimensions of the one-dimensional string space there exists an additional set of dimensions (perhaps an embedded time all its own) which can give rise to upwards of 24 dimensional space. But that can give a person a headache unless they simply let go of the visual and work purely in a vector mathematical model.

Keeping a truck from tipping over is so much more understandable!

 

F that entire post lol. And I still refuse to believe that time is a dimension instead of just an observation of how waves and particles interact with oneanother.

 

I agree - I'm not a fan of string theory. I think it's just a bunch of my colleagues coming up with a cockamamie idea to keep getting NSF grants renewed! As for your thoughts on time, don't confuse the way the world actually works (engineering) with mathematical modeling (physics). It's the difference between how I think of driving my truck offroad: I drive a frictionless cube with the mass of a Tacoma and CoG 30% up and 60% forward on the centerline. An engineer would freak out at neglecting how the gas sloshes to the side, tire sidewalls flex, suspension compresses, viscosity of the ground, siping on the tires, wind ... oh my! That is not generalizable and makes for ugly math. So ... let's assume that the truck is a frictionless cube

 

Thats why I'm an engineer. I get to say "thats too hard to figure out, lets do something else".

You forgot glacial rebound!

Edit: And tires are magic, so let's just forget about those.