UP 844 & SP 4449 Arrive at Edmonds, WA. 5/18/07
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8:54
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100th Video - 4449-844 Doubleheader 2007 photo-video compilation.by westr662 views
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UP 844 and the Portland Rose in the Columbia River Gorgeby deloreanman141,627 views
Finally a trip not ruined by diesel helpers, and instead a helicopter has to pace the train and ruin it for everyone trying to video tape...
stevelerro 1 year ago
@Jemalacane
The air pumps are powered by steam. On a cross compound compressor (the 4449 and 844 both have two) a single pump has two pistons: one where hish pressure steam pumps low pressure air, the air and steam then move to a larger cylinder where the now low pressure steam again compresses the air.
DanielVolker 1 year ago
What powers the pump for the air brake system on a steam locomotive?
Also, where is the air tank kept for the air brake system?
Jemalacane 1 year ago
Awesome video! Great angle on them approaching. What a beautiful pair. :D I love where 4449 starts her whistle then 844 chimes in. YEAH!
HorsegirlJenny 2 years ago