It's ft-lbs. Long blades, lots of torque. (Torque x rpm)/5252 = HP. 1 hp = 746 watts (VA cos phase angle). Couldn't effectively have something like that on a farm, shipped to and put up by a farmer, bought out of a Sears catalog. Since blades had to be shorter, took more to get any kind of power and obviously fatter would catch more wind. On wide blades vs narrow blades, why do do propeller driven airplanes have a few long thin blades but boats have a few short fat blades? Must have something to do with the efficiency of propulsion vs the media....air vs water!
Obviously the physics of the system dictates what is the most efficient and cost effective way to get the job done. One would surely think that these monstrous towers wouldn't be built and maintained if that wasn't the way to do it most efficiently, even with the construction and maintenance (gotta be) nightmare of dealing with something of that size. Had a semi come by the other day with a blade on it........humongous thing. None around here, other than a few novelty types.
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Today's Featured Article - Restoration Story: 1964 JD 2010 Dsl - Part 2 - by Jim Nielsen. Despite having to disassemble the majority of my John Deere 2010's diesel engine, I was still hopeful I could leave the engine-complete with crankshaft and camshaft-in the tractor. This would make the whole engine rebuild job much easier-and much less expensive! I soon found however, that the #4 conrod bearing had disintegrated, taking with it chunks of the crankshaft journal. As a resul
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