Re: Re: Essex Tri-Directional

Posted by Alberta Mike on January 04, 2002 at 16:57:00 from (209.47.89.132):

In Reply to: Re: Essex Tri-Directional posted by Canadian Cowboy on January 04, 2002 at 10:53:21:

Well, I don't want to toot my own horn but there are a small handfull of E-T-D experts on the planet and I just happen to be one of them. I wish I had some means of sketching one out for you and posting it here on the forum but this old Commodore 64 computer of mine won't allow it. Visualize if you will a grid approximately 9 yards by 9 yards, sort of like a big X's and O's grid. Draw a perimeter line around the outside. There are lines every yard within the grid's interior. Every time a line intersects or joins another, visualize a 20" balsa wood tractor wheel. This was the basic makeup of the E-T-D. The power supply and controls have been archived here before and I won't go into those details. If you draw the picture, you'll find exactly 100 of these wheels. Hence, the ability to move instantaneously in any direction at the whim of the operator. Skilled operators could actually make the grid move in 3 directions at once. Eventually, the design gave way to the infamous Uniwheel which was one HUGE carbon fibre wheel with 100 spokes. They saved a lot of money on that design since carbon fibre was so abundant compared to balsa wood. So, there you have it, at least a vague look at this mystery tractor that so many of us crave knowledge for.

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