What does GP stand for ?

What do these initials stand for EX GP-7,GP-38

If I’m not mistaken it stands for General Purpose.

Going Places. . . from Kalmbach’s GM Scrapbook.

Yeah your right. Also SD stands for Special Duty.

[}:)] and SW stood for Six hundred Welded

and E stood for Eighteen

and F stood for Freight

EX or more commonly ex stands for the previous owner of a locomotive.

This is the second time that I have heard that this week. At first I thought it was nonsense, but it appears to be true, but limited to only the earliest of GM offerings.

The N class was rated at 900 HP, and the T class at 1350 HP. There were NC’s and NW’s, SC’s and SW’s. W was for welded frame, and C was for cast frame.

This whole scheme was abandoned after a few models, and SW became commonly known as SWITCHER followed by the actual HP rating 1000, 1200, 1500.

Now I’m beginning to wonder if F wasn’t originally for fourteen, since T was used on a switcher with the same prime mover as the early F’s.

GP is Genral Purpose AKA a geep

How about PA, FA, FT, and ACC?

“PA” and “FA” are Alco designations, although they were really the designations railfans used and which Alco eventually adopted. “P” for Passenger, “F” for Freight, and “A” for the Cab version, “B” for cabless.

“FT” was the first EMD F-unit, and I think according to the above it meant “Freight-Thirteen (hundred horsepower)”.

As for ACC, I don’t know. All I know is that it is my boss’s initials…

its been answered i know but this is something i actually know about real trains and models. partially because all my locos are GP–. its General Purpose.

ACC = alpha cyanoacrylate or super glue.

Do you mean AC? Alternating Current. Some locomotives have traction motors that run on AC and some on DC or Direct Current. It is easy for modelers to forget that diesel locomotives are really electric as well. The diesel engine turns a generator which supplies electricity to large traction motors in the trucks, which is actually what moves the train.

All good replies but the true meaning of GP is: Go Play. [(-D][(-D][(-D]

FUBAR–CF (Charlie Foxtrot) SNAFU. I know what they mean–anyone? anyone? Bueller? Bueller?

DD also made my EMD Satands for

DOuble Duty
or
Deluxe Duty

kevinstheRRman,

I love your sig blk…

When EMC advertised the FT the descriptions were for a four unit Fifty four hundred horsepower locomotive or a two unit Twenty seven hundred horsepower locomotive. So the initials FT stand for the two horsepower levels that EMC intended. And remember, at the time all builders sold locomotives, not units. With the FTs you could not separate the A from the B easily as they were connected with a solid drawbar. In fact many roads numbered all four units of an FT with the same number and added a letter to keep track of each unit.

Do you mean AC? Alternating Current. Some locomotives have traction motors that run on AC and some on DC or Direct Current.
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So what is the difference between a sd70mac and a regular sd70m

I believe that TR stood for Transfer. These locos were an SW cow and calf unit that were permantly connected.