|  Experience the largest, most powerful diesel locomotives ever built. The Union Pacific DDA40X Centennials weighed in at 270 tons, were close to 100 feet long (98 feet 5 inches), carried an 8,000-gallon fuel tank, had 16-cylinder dual power plants that could generate 6,600 horsepower, and attained speeds of up to 90 mph. 47 of these behemoths were built for the Union Pacific by the Electro-Motive Division of GMC between 1969 and 1971. Within 5 years of service, most of these units had racked up over 1,000,000 miles of duty, predominantly on UP's high-speed western states mainline freights. Powerful as they were, the "Big Jacks" were also high maintenance locomotives and by the early 1980s were being phased out of duty.<br><br>In this award-winning video, originally released by Video Rails, you'll witness the Centennials traveling through all types of terrain across 5 different states. Thrilling scenes feature them in operation on Sherman Hill, in the Feather River Canyon, and | 
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| In your opinion, how was the narration level? | There was no narration. Just enough.
 Could have used more.
 A little too much.
 Way too much.
 Narration can be turned off.
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| Aside from the content of the DVD, how would you rate the image quality (sharpness, camera steadiness, etc)? | Poor. A little rough around the edges.
 Good.
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| How would you rate the VALUE of this video? | Overpriced for the amount of enjoyment I got out of it. Seemed a little high, but not too bad.
 Fair.
 Good value.
 Excellent value!
 
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| Last question. Would you recommend this DVD to others? | Definitely not! Not unless they REALLY were interested in the subject matter.
 Yes
 Definitely.
 A "Must Have"!
 
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