wow! amazing technology Jay Leno has some engines of this era

Very efficiant engine because the steam in the cylinder does not have to reverse direction. I believe its also known as a 'Uniflow engine". Nice capture!

Sees previous post and recants uniflow statement :P hehe

On that note I found this a month or so ago and keep forgetting to post it! Rather good film of traction engines really working.


http://www.youtube.com/watch?v=RTmnuCdYKDU&NR=1

That's awesome!

http://www.youtube.com/watch?v=4I_hfxmF0L8&feature=related

This one is rather frightning. I wouldnt be near 1000' of that guy!

Wow, when his front started lifting I was all. "Oh. . . .!

Its frightening to me to see ppls do stuff that drastic with their engines(Especially if there is no need)Im always bothered by ppls using the safetys as their fireman too.He is apperantly firing rather hard because as soon as he stops they lift.Which also means he is pushing the engine to the line of safety. That whole time I never saw him put any water in it at all. (I do have to wonder if he went wide where the road has a slighter incline if he could have made it.)

That's what I was thinking ' GO WIDE you idiot!"

What does a tractor that size have, 40HP?

more like 18hp :P indicated hp is steam pressure x cyl surface area x rpm / 3300.
that is just theoretical tho as the engine runs faster there are huge losses in effeciancy as the steam reverses directions, and pressure lost at the piston due to the same. Steam = 100% torque at 0 rpm tho Very low hp. (1 hp is 1 horse pulling up 3300# in 1 second) Brake hp is allot more accurate for engines and is based on a couculated (totally misspelled)length arm that is attatched to a brake band.the end of the arm essentially rests on a scale tho which they measure foot #. engine is run and brake tightened to the point the engine barely maintains its speed, then foot # measured on scale.
The steam engine at vasona park in Los gatos(When stock) was 18 hp. and that had 2 4" bores x 8" stroke( 1/3 scale pacific engine)