Motorized Freak of the Week: The Horsby Steam Crawler

[cjforumadmin]

http://www.bangshift.com/blog/Motorized-Freak-of-the-Week-The-Horsby-Steam-Crawler.html

[Schtauffer]

Re: Motorized Freak of the Week: The Horsby Steam Crawler

How much torque? How about max torque at any speed, including 1 RPM?

Here's an interesting read on steam power. http://www.mikebrownsolutions.com/stmpwr.htm

Engines of this type turn fairly slowly. 600 rpm is not an unusual or "slow" turning speed. Don?t let the speed mislead you. 600 rpm in a steam engine isn?t comparable to 600 rpm in a gasoline engine. 600 rpm in a gas engine is an "idle speed" that produces very little torque (or twisting force). A steam engine can produce maximum torque at almost 0 rpm. If you have ever seen an old 10 to 16 horsepower steam tractor at a "tractor pull" pulling against our modern 400+ horsepower gas engines, you will understand. The steam tractor always wins.

[CTX-SLPR]

Re: Motorized Freak of the Week: The Horsby Steam Crawler

That thing to me just screams siege gun tractor. I can see it pulling a 600mm siege mortar or a 210mm howitzer.