<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by HummersGoneWild:
Does anyone on here know anything about off-roading
The question is:
At what angle can a non lifted H2 be stopped and not turn over? Driver wheels up 30 degrees from the passenger wheels--not front to back.
At Daytona and other race tracks, there can be up to a 33 degree road surface. If I park my Hummer on that surface, will it roll?
The Hummer Site says 40% side slope---wtf does that mean?
I am involved with a NASCAR safety iniative for ARCA and need to know if I can use a non lifted Hummer as a first response vehicle. It would get to the crash site firat and needs to stop to call in other safety vehicles.
So...opinions---are fine---but who has the facts???? </div></BLOCKQUOTE>
In 5 words, percent grade is
"Rise over Run times 100"
or
(rise/run)*100 = percent grade
Where both the rise and the run must be in the same units - typically feet. So, for a rise of 120 ft over a distance traveled of 0.9 miles, it would be
(100 * 120) / (0.9*5280) = 2.52 %
So, by using 40% and some trig, we get 40%= 21.80*