In 1944, the U.S. War Department made a film showing how hard it is to derail a train by blowing-up sections of rail. This is pretty amazing how much abuse a train can take and still stay on the rails...

http://www.realmilitaryflix.com/public/212.cfm?sd=61

It requires flash to play.

Have fun!

-Phil

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Model Railroading means..."A Money-Pit filled with Trains"