From: 31ochs@gw.wmich.edu
Newsgroups: rec.models.railroad
Subject: Re: Looking for GP30; should have said FP30...
Date: 14 Aug 92 15:26:01 EST
Organization: Western Michigan University

In article <920813091520@d-cell.ftp.com>, stev@vax.ftp.com  (stev knowles) writes:
> In article <1992Aug12.184539.4933@gw.wmich.edu> 31ochs@gw.wmich.edu writes:
> 
>>In article <5503@transfer.stratus.com>, btarbox@sw.stratus.com (Brian Tarbox) writes:
>>> 
>>GP general purpose 
>>A a-unit(cab, as opposed to a booster)
>>30 3000 HP
>>c ??????
>>This is only a guess however, I'm not familiar with VIA's classifications.
>>I do know that the 30 stands for 3000 HP though.
> 
> (*sigh*) GE is quite good about this relationship. EMD doesnt follow this,
> tho. as an example, an SD40 is 3000 HP, and an SD60 is 4000 (as i recall).
> the SD stands for Special Duty, as i understand it. i am not sure about the
> GP30, but i believe that a GP38-2 is only 1800HP, and a GP40X is 3300HP.
> 
> life would be much easier if they followed the HP rating like GE did . . . .

In article <920813091520@d-cell.ftp.com>, stev@vax.ftp.com  (stev knowles) writes:
> In article <1992Aug12.184539.4933@gw.wmich.edu> 31ochs@gw.wmich.edu writes:
> 
>>In article <5503@transfer.stratus.com>, btarbox@sw.stratus.com (Brian Tarbox) writes:
>>> 
>>GP general purpose 
>>A a-unit(cab, as opposed to a booster)
>>30 3000 HP
>>c ??????
>>This is only a guess however, I'm not familiar with VIA's classifications.
>>I do know that the 30 stands for 3000 HP though.
> 
> (*sigh*) GE is quite good about this relationship. EMD doesnt follow this,
> tho. as an example, an SD40 is 3000 HP, and an SD60 is 4000 (as i recall).
> the SD stands for Special Duty, as i understand it. i am not sure about the
> GP30, but i believe that a GP38-2 is only 1800HP, and a GP40X is 3300HP.
> 
> life would be much easier if they followed the HP rating like GE did . . . .

Once upon a time, that did happen. After the GP7/9 series, EMD came out with
the GP18/SD18 (1800 HP)  GP20(turbocharged, 2000HP) and SD24(also turbo,2400HP)
then when they came out with the GP30,  it was only 2250 HP, and GE had the
U25B and U25C, so not wanting to be outdone by GE,they named their engine 
GP30, because it was a higher number than GE's(This is what I have heard anyway)

Here is a kinda HP description of EMD engines(starting with the F/GP7):
GP/SD7  1500HP (Also includes the F7,FP7 and BL2)
GP/SD9  1750HP (Also includes the F9 and FP9)
GP15    1500HP (Only engine built in the 70-80's with its HP as its design.)
GP15T   1500HP (Turbocharged version with 8 cyl instead of 12 cyl)
GP/SD18 1800HP
BL20-2  2000HP (New engine,demonstrators only,EMD's competition to MK and VMV)
GP20    2000HP
SD24    2400HP
GP/SD28 1800HP
GP30    2250HP
GP/SD35 2500HP
DD35A/B 5000HP (2 GP35's end-to-end basically)
GP/SD38 2000HP
GP/SD39 2300HP
GP/SD40 3000HP (also includes the F40PH,F40C SDP40F)
SD45    3600HP (also includes the F45 and FP45)
GP/SD50 3500/3600HP
GP/SD60 3800HP
SD70    4000HP (New engine,Demonstrators only,EMD's competetion to GE)

There is also a GP49 and GP59, but I don't know the HP for these.
(also  included with the GP59 would be the F59PH  some passenger RRs have)

There were also test engines, and such, some became later models after testing
GP/SD40X 3300HP
DDA40X   6600HP(2 GP40X's basically)
SD45X    4200HP(This has to be one of the only single engine with more than
                4000HP)

Hope this helps ya,


Fred Ochs
31ochs@gw.wmich.edu  (vax)
ochs@sol.cs.wmich.edu (unix)
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