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.

I was born and lived in Romania until 7-8 years ago and I still visit once in a while and it's nothing uncommon to see people/work horses/bulls/cows doing the plowing, harvesting, reaping etc.

Until a few years back everybody saw that as medieval practices for people who can't afford to buy tractors etc. but nowadays more and more people (including my grandparents :) ) are starting to realize organic agriculture can be a way of making a decent living. EU also encourages some of these things although unfortunately billions and billions of euro subsidies goes into intensive farming of which we all know what kind of un-natural unhealthy things result.

I've attached some photos, some are blk/wht not because of age but for artistic effect ;) :
Attachment 6184

So, imagine a SUV being drawn by eight teams like that. I usually call that shot "Why we build motors" - look at that tiny sickle bar! It took only about 10% of the power. Around here, separate threshing machines were more popular, running from wood or coal fired steam engines. The first "field engines" look like tractors, but were really just self-propelled, sometimes towing the thresher on easy ground. The early gasoline tractors had their cooling systems designed and built by redundant steamfitters, with air passages like fire tubes.