I did a bit of investigating of Evatech's products when I was researching the viability of RC mowers. As Plowhog alludes to their website is somewhat lacking. When I went looking elsewhere on the web for information about Evatech the search returns made me uncomfortable about the company.
A few months ago I had an email conversation with one of Evatech's sales engineers to get some more technical info, since they don't put important data like engine size on their website. He wrote that the Goat 22T uses a B&S Professional Series 875 engine. I know that lots of people use splash lubricated engines like this one on slopes without damaging them from oil starvation, but designing a slope mower that doesn't use a pressurized lube system seems like a bad choice. The torque curve on this engine converts to 6 hp. That's comparable to the push mower that I brought from the city, which did fine on my lawn there, but is challenged on the length of grass that I'm cutting here. Considering that the Goat's engine is also propelling the machine means that there'd be even less power for the blade. The 22 inch cutting width is less than on the machine I use now, so it would be tedious to operate this machine on a large area. I've considered buying a smaller RC mower like this for the steep slopes and something to ride on for the less steep ground as an option, but I'm still hopeful for a single tool solution.
Does Evatech have a machine big enough to use as one solution for all my mowing? Well, they have the TREX mower, which has a 44 inch cutting width and 20 hp pressure lubricated engine (and looks surprisingly like the RC mower that I linked to in my original post in this thread). This looks like it would cut on all my terrain and save me time, since the cutting width is about twice what I use now. But for US$25,000 I could pretty much buy any of the other safe ride-on solutions that I've been looking at. I suppose that once the big manufacturers move into this market that prices will drop, but for now...
