Lehigh Valley's GP9s

Discussion related to the Lehigh Valley Railroad and predecessors for the period 1846-1976. Originally incorporated as the Delaware, Lehigh, Schuylkill and Susquehanna Railroad Company.

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Lehigh Valley's GP9s

Postby Lehighton_Man » Thu Sep 16, 2010 10:17 pm

Howdy all,
Quick short question --
What were the class designations underneath 300 and 301?
Thanks.
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Re: Lehigh Valley's GP9s

Postby Otto Vondrak » Fri Sep 17, 2010 1:14 pm

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Re: Lehigh Valley's GP9s

Postby 56-57 » Fri Sep 17, 2010 6:29 pm

Fairly sure it's ESM-18...

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Re: Lehigh Valley's GP9s

Postby lvrr325 » Fri Sep 17, 2010 7:15 pm

According to the timetable max speeds list, it would be ERSM-18 - Emd Road Switcher with M/U, 1800 HP (1750 rounded up). There is no ESM-18.
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Re: Lehigh Valley's GP9s

Postby GRSJr » Mon Sep 20, 2010 6:32 pm

Definitely ESM18. Originally DRS3.
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Re: Lehigh Valley's GP9s

Postby scharnhorst » Sun Jan 06, 2013 1:04 pm

Lehighton_Man wrote:Howdy all,
Quick short question --
What were the class designations underneath 300 and 301?
Thanks.


Lehigh Valley GP9 Class was
DRS-3

Lehigh Valley GP18 Class was
ESM-18
no matter the weather or the country I'll still be trackside!
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Re: Lehigh Valley's GP9s

Postby scottychaos » Sun Jan 06, 2013 4:15 pm

Well, there seems to be some conflicting information out there..

Extra 220 South, issue 77, from 1982, says both the GP9's and the GP18's had these numbers:

Old: DRS-3
New: ERSM-18

And they make no mention of ESM-18.

However, there are several photos that clearly show ESM-18 on the side of the GP9's..
So that is three different numbers in the mix..

Im pretty confidant that DRS-3 is the correct original number for both models..
the iffy part is ESM-18 or ERSM-18 for the later numbers..
photos say ESM-18, some printed rosters say ERSM-18.
(haven't seen ERSM-18 in a photo, but that doesn't mean they didn't exist..in the majority of photos you cant make it out clearly)

Perhaps they wore all three numbers at different times?
we know the numbers were changed twice..they could have been changed three times..
need better photos to straighten it all out..

Also, Extra 220 south did not include any dashes for any of the class numbers, for any LV diesels on their printed roster.
they listed them as DRS3 and ERSM18, with no dashes..
while the actual numbers on the side of LV locomotives always had the dashes, DRS-3 and ESM-18.
Since the locos themselves were lettered that way, we should probably consider the versions with dashes to be the correct nomenclature..

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Re: Lehigh Valley's GP9s

Postby charlie6017 » Sun Jan 06, 2013 4:40 pm

I just read the article in the brand-new Flags, Diamonds & Statues that CMO Chuck Turner
considered the GP-9s (300, 301) and the GP-18s (302-305) to be the same and eventually
had the GP-18s de-rated to be even more similar to the GP-9s. Not sure it helps you guys
here.......if not, we'll file it with the "for what it's worth" category.

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Re: Lehigh Valley's GP9s

Postby RSD15 » Sun Jan 06, 2013 4:46 pm

Originally the two GP9s were classed DRS3. At sometime both were re-classed as ESM18.
The 300 remained ESM18 until Conrail or at least into 1975.
The 301 for a time wore the wide yellow stripe paint as ESM18 and when it was repainted it received Class ERSM18.
So at the end both were in the red with white strips,the 300 as ESM18 and the 301 as ERSM18.
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Re: Lehigh Valley's GP9s

Postby lvrr325 » Wed Jan 09, 2013 6:23 am

Just going to state again for the record what I posted previously was taken direcly from a Lehigh Valley employee timetable.
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Re: Lehigh Valley's GP9s

Postby obsessed railfan » Sun Feb 18, 2018 9:11 pm

charlie6017 wrote:CMO Chuck Turner considered the GP-9s (300, 301) and the GP-18s (302-305) to be the same and eventually
had the GP-18s de-rated to be even more similar to the GP-9s


Reviving an old topic here, but found this very interesting. Any idea what year the GP18's were de-rated?
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Re: Lehigh Valley's GP9s

Postby SALSDP35 » Tue May 01, 2018 1:26 pm

obsessed railfan wrote:
charlie6017 wrote:CMO Chuck Turner considered the GP-9s (300, 301) and the GP-18s (302-305) to be the same and eventually
had the GP-18s de-rated to be even more similar to the GP-9s


Reviving an old topic here, but found this very interesting. Any idea what year the GP18's were de-rated?


This sounds unlikely. 50 Horsepower? They could vary that much from unit to unit anyway! The D block in the 18's could certainly handle 1800 hp.

As far as considering them the same - they were very similar since the LV's were very late production.
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Re: Lehigh Valley's GP9s

Postby GOLDEN-ARM » Fri Jun 29, 2018 8:37 pm

de-rating the locos didn't have to be an actual, physical act. the motive power dept could easily de-rate a loco on paper, without making any changes to the actual locos. crews determine how much tonnage they can operate, by using the printed ratings for their locomotives. if the timetable says you can only take one ton per horsepower up the hill, that's on you, as a crew, to follow. if the superintendent of motive power says your 2000 hp loco is rated at 1700 hp over a given section of territory, you have to account for that, when calculating tons per hp. try telling that to the trainmaster though, who wants you to drag out of his yard, with 1500 more tons than your consist is rated for. :P
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Re: Lehigh Valley's GP9s

Postby D Alex » Sun Jul 01, 2018 6:55 pm

Don't forget, if the motor isn't turbocharged (and to a lesser and more variable extent, even when it is...), the horsepower rating is lower at higher elevations.
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