6/25/2002: Walking tractor
 

http://cellar.org/2002/walkingmachine.jpg

I had not seen this before. Deforestation opponents aren't going to be happy.

Here is a tractor that doesn't have wheels -- a logging tractor, built to WALK over the forest floor, to collect logs. Apparently it can go in any direction, turn in place, manage graded terrain.

More info, more pics, and two videos

Actually maybe the deforestation people are happy after all. A device like this would make it economically viable to only cut selected trees in a forest, rather than just clear-cutting. Also, maybe it allows them to selectively forest without having to cut down wide paths of trees for logging roads.

It looks like a huge improvement to me. The log skidders in use now can leave deep ruts, when off the actual logging roads, which cause erosion on rugged terrain. More importantly, it looks like a giant beetle, gotta have one.

I agree- this is a good thing
 

A way that you could walk a machine into a forest, pick out only a few trees and walk back out is WAY more forest-friendly than your standard clearcutting with tractors and trucks.

I've seen other variations on this theme, it seems the time is right for such machines.

The western US has forests that are dangerously loaded with fuel, both from now-obvious poor fire management in the past and also because logging has a bad name because of the damage it has historically done.

If I were an environmentalist, I'd be very happy to see these things. "Take only what you will use" fits very well with nature's plan, and in a big enough forest is probably sustainable for both the forest and the management industry.

If you look to the left behind the third large tree, there are three Ewoks planning an ambush on this monstrosity in their forest.

many uses
 

You know, they could keep these things on the International Space Station for use in moving heavy items around in the ship docking bay...

...or for fighting alien queens...

Sludge, why must you judge by sexual preference? ;)

There is a growing amount of work around here for horse logging. Folks have small high value woodlots that they don't want torn up. Its an interesting opportunity.

Makes me wonder how much pressure each of those legs is placing on the ground. If regular tractors leave such deep ruts, what kind of mark are those feet going to leave?

As the owner of woodland, I like it. The loggers usually leave a big mess.

The reason the tractors leave deep marks is things like skid stearing (think about how a bulldozer turns), and the fact they DRAG the trees out, plus if there is something in the way, the bulldoze it down. With this, they can step over things

I wonder how hard it is to control?

The machine's nerve center is an intelligent computer system
that controls all walking functions - including the direction of
movement, the travelling speed, the step height and gait, and the
ground clearance.

I'm betting its pretty easy. If you can carry logs out it really is an improvement.

Seems like I've heard of these critters working to thin out woods that were replanted too densely, and to lessen the cycle of massive wildfire.

hmmm
 

You know, one of these things without the logging crane wouldn't make a bad off-road recreational vehicle.

Judging from the video, they move very slowly. Dunno what the top speed, but I'm sure 'gallop' is out of the question.

My question: How does that thing on the arm cut a tree? I can't see a blade anywhere.