RTI Calculator

[irbob]

Anyone know what the formula is for the RTI ramp? What angle is it at.

I have a forklift but no ramp so I would like to fork my Wagoneer up and see what it will score.

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[newbie]

RTI score is a measure of inches traveled up a 20 degree ramp. To calculate RTI, you'd need to measure the distance your truck travels up the ramp, from hub to end of ramp, then divide that measurement by the vehicle's wheelbase then multiply by 1000. Hence a "perfect" score is 1000, meaning that the distance travelled up the ramp is equal to the vehicle's wheelbase. If you are using the forklift method, you'd need to measure how high your tire can lift, then plug it into an RTI calculator like this, http://mark.legendz.com/ramp.html

good luck!

Newbie

[This message has been edited by newbie (edited April 29, 2001).]

[irbob]

Wow, thanks newbie that helps a lot.

I checked it out and found that in order to get a score of 1000 I would have to lift my rig 37.27" with the forklift. That's equivalent to traveling 109" on a 20deg. ramp before lifting a tire. I will have to check my rig out.

[This message has been edited by irbob (edited April 29, 2001).]

[newbie]

Exactly! Just be careful with the forklift and keep in mind that the forklift doesn't quite allow you to fully measure articulation (a ramp will create a little more leverage, slightly increasing your articulation), but it should be very close. Be sure to measure from the ground (make sure all tires are on level ground) to the bottom of the tire.

Keep us posted!
Newbie