Innovative Sand Ladders

[Joaquin Suave]

http://www.youtube.com/watch?v=qoSSbg4y72k

[goodtimes]

Well, I guess that would solve the problem of having to get out and move the sand ladders every 3' or so. Of course, they could have been a bit stiffer (looks bent)....and I assume then that the 2 rear axles have lockers and they are a "locked train" configuration (every rotation of the fwd pinion = one, and only one rotation of the rear).

[lowenbrau]

Wow that's thinking. I like the simplicity of getting them on even after the rig is bogged and having them lift the rig out of the mire and then forward.

[adventureduo]

Dang! That's too cool! Im suprised they dont just snap off with the weight of that rig on the hub/lug nuts.

What the heck? Was that a wing on that pioneer truck at the end? What would you need a spoiler for
on such a heavy rig? Does it really go that fast that it needs down force?
http://img443.imageshack.us/img443/3888/wingpw6.jpg

[mountainpete]

That is really cool. I wonder how well it would work on snow? Probably pretty well...

[Bob_Sheaves]

A couple bits of side info on those:

1. They only work in a straight line OR with the interaxle AND diffs locked.

2. The height cannot be any longer (from the tray to the center of the wheel hub) than the radius of the wheel plus 2 inches.

3. they will only work on a pair of rear or a pair of front axles on a 6x6 (rear only) or 8x8 (front or rear). You cannot use them between a front and a rear wheel as on a 4x4.

To correct one previous comment-one revolution of the pinion on the axle does NOT mean one revolution of the wheel end. That is where the rear (or front) axle ratio comes in. Eample: an axle with a 4.11:1 gear ratio will turn the pinion 4.11 times for one turn of the wheel.

Best regards,

Bob Sheaves
CEO
catNET Incorporated
http://www.catnetsolutions.com

(edited for spelling)

[goodtimes]

A couple bits of side info on those:

1. They only work in a straight line OR with the interaxle AND diffs locked.

2. The height cannot be any longer (from the tray to the center of the wheel hub) than the radius of the wheel plus 2 inches.

3. they will only work on a pair of rear or a pair of front axles on a 6x6 (rear only) or 8x8 (front or rear). You cannot use them between a front and a rear wheel as on a 4x4.

To correct one previous comment-one revolution of the pinion on the axle does NOT mean one revolution of the wheel end. That is where the rear (or front) axle ratio comes in. Eample: an axle with a 4.11:1 gear ratio will turn the pinion 4.11 times for one turn of the wheel.

Best regards,

Bob Sheaves
CEO
catNET Incorporated
http://www.catnetsolutions.com

(edited for spelling)

To clarify my earlier question (which you sufficiently answered under #1 in your above post, BTW)...the assumption was that there was no differential speed between the 2 rear axles, nor between axle shafts...IE: the pinion of each rear axle would turn at the same speed (relative to each other) in addition to the axle shafts being locked at each differential, thus the angular velocity of all 4 rear tires would be equal.

[Doin_It]

My good buddy (all the way back to grade one) just last year signed a joint venture deal with Tatra, Tatra CEO being from Texas, to build equipment together. So if you need an end all to this Q, I'm sure I could find out for you. They are going to build service equipment on Tatras . http://www.wellquip.ca/

[Colorado Ron]

I have a video very similar to that on my site. Gave me the idea for a design Im working on for the single rear wheel design.