Hummer Forums by Elcova - where to mount LEV-O-GAUGE n a H3

[quote]Originally posted by PARAGON:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Wile E. Coyote:

Quote:

Originally posted by Wile E. Coyote:
NEOCON1,

The factory spec on our H3s state the side slope capability as 40% and that equates to 36 degrees. (Think of a flat surface as 0% and a vertical wall as 100% slope or 90 degrees. Then, 40% of 90 desgree is 36 degrees (.40 x 90 = 36). Keep that in mind when looking at your LEV-O-GAGE as you are traversing over a challenging terrain. Also, these inclinometer have an accuracy of around +/- 2 degrees under optimal condition. The optimal condition would be to mount it upright and in transverse direction to the forward of the vehicle. The way you have it mounted is not quite upright, however, it is pretty much transverse to the vehicle which matters most, so your inclimeter setup should work pretty good. As always, use your good judgement when offroading.

The "LEV-O-GAGE" Product has been around for more than 30 years serving the offroading industry. It was not made specifically as a marine product although they are sold for a lot of different uses. Here is a link to their products LEV-O-GAGE

DAYUM!!!! You so stupid, if you were to fall out a window, you would go up.

45 degrees = 100% slope
40% slope = about 22.92 degrees </div></BLOCKQUOTE>

Paragon's correct. A 100% grade means the rise and the run are equal - i.e., the hill climbs 10 feet for every 10 feet it moves horizontally - i.e., 45%.
A 40% grade means that the grade rises 4 feet for every 10 feet of horizontal travel (the rise is 40% of the run) - not that the angle is 40% of anything.
The ArcTangent of 0.40 is the angle of a 40% grade in degrees. See http://hyperphysics.phy-astr.gsu.edu/Hbase/ttrig.html

I don't have my HP calculator with me but this web calculator thingy (http://www.1728.com/trigcalc.htm) says that the ArcTangent of 0.40 is 21.801 Degrees. I'm not sure if that calc is accurate, but, either way, it's awfully close to what Paragon is saying (he did say "about" 22.9 degrees) and awfully far from 36 degrees.