Ok Sean I see the confusion. To add to my last post the true wheel base of my Muck Truck is 22 1/2 " inches between the points where the front and rear tires touch the ground.
Yes in my barrow's wheel base measurement ...4 inches between front and rear tires.
A tracked machine would slide backwards down the stairs, especially if it had a full 800 lb load of gravel on it like that Muck Truck was carrying.
I think in the case of my Muck Truck with a 4 inch wheel base and the operator walking behind, the limit of approach and the 4 tires footprint are at the maxium for climbing stairs, rough ground and 78% (38 degree) inclines with a full 800 lb load.
A tracked machine would just slide back down...
I just revisited that website and it's 38 degrees not 38% incline the machine is capable of climbing fully loaded........ so that would be about 78% grade.
I had to think about this seeing I owned these 2 vehicles 30 years ago. The Bronco could climb better because of it's limit of approach of the slope with its short front end and rear end , also the short wheel base would crest the top of the hill with more clearance then the long wheel base F150...
I just the math and I see 60% incline is equal to 31 degree incline. Still pretty darn steep though, Some Hummers claim a hill climb of 45 degrees buts that with enough momentum and good tractive ground.
I was saying shorter wheel base in 4 wheel drive as my Ford Bronco could climb better then...
So where is the engine or motor on it?
60% or even 40 degree slope climbing sounds hard to believe. I've ascended on rope at 45 degree and that was only possible on rope.
Being battery powered equipment has been poplar lately on TH I thought this electric Muck Truck video demo was pretty cool.
http://youtu.be/QyVedAw1kmc
No I never got any pics of my Muck Truck power barrow climbing some steep hills with a half ton load on, kinda tough to do when you work alone .
But I did find this cool little videos.
http://youtu.be/VNqe_K2xC14
http://youtu.be/564DqvqHkfo
I've climbed some pretty steep grades with my Muck Truck in 1st gear with about 800 lbs on.
Not sure I have done 38 degree inclines like the Muck Truck website claims it can do. But by off centering the load ahead to compensate for the incline I done a lot of steep terrain work with that little...
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