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Two Strange Locomotives

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  • Member since
    May 2019
  • 1,011 posts
Two Strange Locomotives
Posted by BEAUSABRE on Monday, September 19, 2022 3:45 PM

Yesterday, visiting the LHS, I spotted a pair of used GP20s going for a song (since I can't sing, that shows how inexpenive they were). So what did I end up with? Since it takes six men and a boy to pick one up, the truck are linked by universals and a shaft and are not Sharkmouths with that horrible gaping hole in the pilot., I think they are Hobbytown G7/GP9/GP20 chassis - but I have no idea what the shell is from. Maybe I'll find out when I open them up for cleaning and lubrication if there is a name on the inside. They have 48 inch flared fans, which makes the Phase 1a. So what makes them strange. One is a low nose SP unit WITHOUT dynamic brakes, which is totally wrong. Nor does it have the SP Christmas tree of lights. OK, strip and repaint as an NYC unit - which was the one road to own dynamic brakeless GP20's. The other is even stranger, it is a Rio Grande dynamic brakeless unit modified with a Horst "Yoke Type" airfilter. OK, the NYC did that, but that was when they deturboed them and installed 645 power assemblies. But that should mean two small stacks right? This beast still has its fat turbo stack. BTW. Plus the airfilter housing was mounted on top of the hood. The Grande never owned any GP20's. So it was probbaly a minor kitbash by the previous owner. Can anybody shed any light as the pedgree of the models? Did any prototype road add the Horst filer and keep the turbos? Since I may well be dealing with a mythical unit, I just might go holy hog and, after stripping, paint and decal it for the PRR!

  • Member since
    February 2002
  • From: Mpls/St.Paul
  • 12,980 posts
Posted by wjstix on Monday, September 19, 2022 4:31 PM

Posting pics would be very helpful.

First guess is "inexpensive" + "GP20" = "Tyco". There haven't been all that many GP20 models made over the years.

Stix
  • Member since
    March 2011
  • 1,451 posts
Posted by NVSRR on Tuesday, September 20, 2022 7:01 AM

I. Would agree the shells would be tyco shells with details.  Tyco only made the non dynamic version.  The chasis is an unknown.  Somebody did some attempted kitbashing  

 

shane

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    August 2010
  • From: Pittsburgh, PA
  • 142 posts
Posted by parts323 on Tuesday, September 20, 2022 8:14 AM

I highly doubt someone would modify one, but Broadway Limited does make GP20s. They are most likely kitbashed Tyco's with a different chassis.

  • Member since
    March 2002
  • From: Milwaukee WI (Fox Point)
  • 11,183 posts
Posted by dknelson on Tuesday, September 20, 2022 3:17 PM

Check out this older thread on the forums

Repowering a Tyco GP20 - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums

It includes my posting that the original Mantua/Tyco GP20 American made had external features to the shell that made it a difficult drop in replacement for most after market power chassis, and then someone else chimed in that Hobbytown had made a special chassis to acommodate those features just for the Mantua/Tyco GP20.

Dave Nelson

 

  • Member since
    May 2019
  • 1,011 posts
Posted by BEAUSABRE on Tuesday, September 20, 2022 3:29 PM

Thank you

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