Pacing UP 844 at 79MPH
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Uploaded by NickelPlate765 on Sep 5, 2007
Pacing Union Pacific 844 at 79MPH between Cheyenne,WY and North Platte,NE
- 61 likes, 1 dislikes
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Uploader Comments (NickelPlate765)
Top Comments
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Before the Mustang, the GTO, or the Corvette, this was THE original American Muscle.
2 years ago 23
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@Hiei2k7 : as for Steam Pacing NW (J) 611 -> Well, by hearing the rhytme of the 80'' diameter drivers, you are able to calculate the speed. Where I'm counting some 330 strokes per minute .., so with the rotating frequency f = n/60 = 5,5 Hz, regarding on the circumference of those (4) D-wheels, you'll get : v = 5.5 x π.D = 5,5 .π.(0.8 x 2,54) = 35.1 m/s or ca. 126.4 km/h or else some 79 mph ... Hopefully at your service (-: dAb +>
1 year ago 7
All Comments (45)
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That's a massive display of recipicating energy amost comparable to the largest pistons on the largest ship engines. This really graphically shows the violent recipicating energy of those push arms. I am assuming preventing those arms breaking is number one safety priority for these mechanics.
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This thing was haulin' some serious ass.
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The US is lucky, steam's only aloud to top 70mph :[
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The 844, 3986, 6936, 949, 963B and 951 are all rated for 82 mph in the employee's system special instructions.
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Thats what i like to see.Shes structing her stuff here.Did you guys notice that shes not making alot of smoke.I have a model of this locomotive in o gauge by mth trains.
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@Amtrak1194 Wait A min, i thought the DDA40X was geared for 90mph! But i could b wrong.
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@operazanotaijin amen to that.
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I wanna see a UP 844 and MILW 261 double-header. That would be amazing. Great clip btw. That thing can fly!
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That was an excellent video except that it wasn't long enough! Wouldn't it be cool to be riding inside the loco?
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@Amtrak1194 The DDA40X was designed with a top speed of 83 mph.
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was he hauling the DD40AX because the dd40ax was only geared for 70 mph
im not trying to be accusitive just asking
Amtrak1194 2 years ago
@Amtrak1194 Nope only the 844 on this trip
NickelPlate765 2 years ago