Re: More EF-5 info, pictures
Bird's inclination that there would be a combination of 2 or more factors sounds right. Theoretically there might be another factor involved, traction or the lack of traction on the rear wheels. Obviously the lack of traction would never be an issue with a machine belonging to Mark but it might be fun to think about the physics involved.
What I am picturing is -- if there is enough power and the rear wheels don't turn due to perfect traction, the tractor will turn around the wheels raising the front off the ground. If there is not enough traction then the wheels turn instead of the tractor. For those of us up north we get to experience this during the snow removal season. Using FEL float in snow does not cause the front wheels to come off the ground but rather wheels just spin. Of course like Bird said the physics involved in the angle between the boom and the pivot point on the tractor (influenced by the distance from the ground and the length of the boom) will dramatically affect how much power must be applied before the wheels lift.
Now that I've thought about this "out loud" it seems that the biggest factor involved in Mark's EF wheels not coming off the ground is probably the front end weight (since we already know that traction is not a problem, or won't be as soon as the Michelin's arrive...). Just my two cents ... which ain't nothin' compared to the EF /w3tcompact/icons/smile.gif
DaveV
