Union Pacific DDA40X Turning at Dunsmuir Railroad Days

The largest diesel locomotive ever built at 98 feet long fits quite nicely on the turntable in Dunsmuir.

Category:

Autos & Vehicles

Tags:

• DDA40X
• DD40X
• Centennial
• 6936
• Union
• Pacific
• Dunsmuir

[JetMechMA]

Hey?...what's the current largest locomotive in operation in the US?...besides this one.

[cchan006]

@JetMechMA: AC6000's (and C6044AC's) are 76 feet long, while SD9043MAC's are 80 feet long.

[DrAlco]

Whaauuuu...thats what i calld a huge locomotive. I like it wery much. Can you tell me more about this locomotives engines. Is the engines a GM 16-645E3 ???...Are these locomotive equipped with a silencer. I really want to hear this big locomotives go up to run 8.

Wery nice locomotive. Thanks. I like this video wey much. 5 ratings from here.

[cchan006]

Yup, I believe 645E3's are in the DDA40X's, including the 6936. As for high notch running, look for cnw8577's video titled "Pacing UP 6936 west" right here on YouTube.

[five0fan]

Does it ever come off the table?

[cchan006]

The 6936 is often on the move, so after that weekend was over, it left the table and went back to Portola, CA.

[Hiei2k7]

Sorry Europe.

AMERICAN TRAINS ARE THE GREATEST, HEAVIEST, BIGGEST SONS A BITCHES EVER BUILT!

[lespaul369]

its basically 2 sd40's in one. back when railroads tried to out-do each other by having a bigger dick

[JRCoolDude412]

That Loco's Long! Lol!

[kittty2005]

the pentrex video of the big boy,forgot to put that in.

[kittty2005]

Actually the pentrex video said that it could pull 5 mile train on level track as it was constructed,an ideal,but not in the realm of reality.I had a centennial copy of the article in trains magazine,but it was destroyed by water damage,the train heading for Utah had the 6900 as lead unit and 5 sd units not sure what number designation,thought 45's but not sure they were around back then,it was a very long train and 6900 pulled the cargo and the idling sd's up the mountains by itself.

[Jemalacane]

@kittty2005 One Big Boy could pull a freight train 5 and a half miles long by itself! To add icing to the cake, the Big Boys were not the most powerful steam locomotives by far. The N&W 2-8-8-2s (Y6Bs) would generate 34,625 more pound feet of tractive effort than the Big Boys. The Allegheny 2-6-6-6s generated 1,500 more horsepower than the Big Boys.

[kittty2005]

Lets see UP bigboy do that,and the 6900 series were fitted with larger than normal pilot plows because of their extreme adhesion to the rails, these were bigmen,the incredible hulk of the rails.I heard a story where one of these rounded a curve and breaked for a rock slide ,knocked the front truck off the track and kicked boulder as tall as itself down a ravene,only dented the pilot,boulders beware.

[kittty2005]

I love this loco,makes me cry to see it reduced to meanial tasks.These locos had a better alloy coupler than previous models and had to have a soft start feature added to prevent ripping the coupler out of lead car,this behemoth is so heavy even with a 3% grade the wheels did not slip and a standard notch 8 start would rip the coupler out of lead car on long train,so they came up with a solution and this was testing involving the worst worst case scenario.

[jamcgar]

Who was the idiot holding a baby out on the side of this massive loco? AND, while it was moving on a turntable?

Who was the idiot who allowed this to happen? Talk about shades of Michael Jackson. Grow up and act responsibly!

[F7Aengineer]

its even still got its beacon hw coo

[pdwman]

@cchan006 And even then, its prob dead in consist