UNION PACIFIC LOCOMOTIVE NUMBERS

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3 replies

mrbudson

Member since
May 2006
9 posts

UNION PACIFIC LOCOMOTIVE NUMBERS

Posted by mrbudson on Thursday, September 14, 2006 8:39 AM

HELLO

I HAVE A QUESTION REGUARDING UNION PACIFIC LOCOMOTIVE NUMBER I HAVE SEEN IN A LOCAL SIDDING IN ELK GROVE IL THE NUMBER IS Y707 WHAT DOES THE Y SAND FOR. DOES THE Y MEAN YARD USE ONLY.

THANKS BOB

Andrew Falconer

Member since
July 2006
From: Vicksburg, Michigan
2,303 posts

Posted by Andrew Falconer on Friday, October 6, 2006 6:57 PM

How did this post get duplicated.

What a neat trick.

Andrew

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Railfan1

Member since
July 2006
From: The Beautiful North Georgia Mountians
2,362 posts

Posted by Railfan1 on Tuesday, October 10, 2006 6:07 PM

That is correct. A few years ago UP needed a new numbering system to have more blocks of numbers because they were almost at capacity with 4 digit numbers and 5 digit numbers were too big of a hassel with computer systems. Thus, UPY was created. Yard locomotives (swithers, smaller odd locos (i.e. GP15's) etc.) were placed in this new system freeing up larger number blocks for newer road power.

"It's a great day to be alive" "Of all the words of tongue and pen, the saddest are these, It might have been......"

jeffhergert

Member since
March 2003
From: Central Iowa
6,872 posts

Posted by jeffhergert on Tuesday, October 10, 2006 10:37 PM

Even though the GP-15s are in the UPY series, they aren't restricted to yard service. Some are equipped with Automatic Train Control/Cab Signals and used on main line/branch line locals and work trains.

Jeff