Found this video at another site , really impressive pulling power
That track must be a little bit rough - the Shay hardly slips at all. I had to re-build my curving grade because my Shay would slip on the smooth stainless rail pulling just a few cars.
Dennis;
It reminds me of one of Roland Emmett’s cartoons where a tiny Far Twittering & Oyster Creek locomotive is assigned a prodigious load. Only this is REAL!
Thank you,
David Meashey
That has to be going down hill some. No way that can pull that with a person.
Says its 1% up grade. I’d believe closer to dead flat. If it was down grade the load would push the Shay.
I’ve got some ocean front property in Arizona at a great price if you’re interested. 
Dave Marconi said:How you sucker the MOB out of it?
I've got some ocean front property in Arizona at a great price if you're interested. :)