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[quote user="Modelcar"] ....F M:  You mention of using 8 cyls. for a steam engine, etc....Well it was done.  By the Germans, in the 30's.  I have a picture of it and you can find it on the web. Enter:  DRG experimental.It did run 125 mph and somehow it {the prototype}, ended up here in the States after the war and soon was scrapped.  It had 4 clusters of "V" shaped cyls. totaling 8.[/quote]Is this the one you're talking about....<a href="http://www.worldrailfans.org/Articles/Europe/GermanSteamImages/Experimental/19-1001.jpg">http://www.worldrailfans.org/Articles/Europe/GermanSteamImages/Experimental/19-1001.jpg</a>Hard to see how the inner workings are configured with all that sheet metal covering...[sigh]I was thinking more in the line of a Pennsy T1 but with two additional cylinders on the inner side of the wheels for each driving set.I think the big advantage of electric traction for locomotion is the constant energy feed (as opposed to the counter forces inherent with reciprocation), plus the ability to use the traction motors as regenerative/dynamic brakes.  Of course, they could have put free wheeling traction motors on the lead and trailing trucks of a steam locomotive, engaging them only for dynamic braking purposes or maybe even as a booster set.It is somewhat curious that diesel powered direct drive never made it past the experimental stage here in the US.  What is it about traction motors that makes them ideal for locomotives?
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