My great-grandfather's 2hp delivery truck
 

http://ecomodder.com/imgs/pleasant-valley-dairy800.jpg

A relative sent this around to family recently: my great grandfather driving his 2-horsepower milk delivery truck decorated for a parade in Schrieber, Ontario (north shore of Lake Superior) in 1920.

Somewhere I have a picture of a 30 HP combine harvester. It is called "Why we build motors." BTW, in all the old pictures of threshing machines surrounded by hay wagons, guys with pitchforks, etc, you'll see one guy standing on top. His job was to warn the others when they were too close to the unshielded moving parts.

Does that have lean-burn? :P

It probably had a limited sort of lean burn. Then the horses fall over.

Bob - I wonder if the next photo was a combine with guards in place and just one guy operating it, with the caption "why we have shields on equipment". :)

Something like this ?
http://www.scienceclarified.com/imag...01_img0018.jpg

...yeah, but talk about "roadway polution"!! -- lot's of "road apples" with that 2 hp vehicle!

At first I thought that was a turbo'd horse. But then I realized there was two horses.

30 HP Combine
 

There are still a few working teams around here, but not this big.

2 hp..
I was referring to a broken gear in a newer subaru (that break is getting old)

250 foot pounds breaking the gear. I weigh 140 and can deadlift 300...putting the break into human perspective..if I had a hammer on my foot, I could break the gear.

the horses can tug at alot. They never put power of linear to revolution into human perspective, and then they made horses look weak.

it is miserable..the facts....oh so miserable.:(

That's an amazing photo! I had no idea.