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2-6-6-6 Allegheny Vs. Union Pacific Big Boy Steam Locomotive!

844steamtrain
844steamtrain - 131 Views
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131 Views
Published on 10 Aug 2018 / In Cars and Vehicles

One of the most viewed Big Boy and Allegheny steam train comparisons on youtube! One is the largest, and another is the most powerful. This is a response video to the Trains Magazine article known as "Big Boy."

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