Comments on: Some elephant-style second generation EMD/GMD action puts in an appearance on a gloomy day in Galt: CP Rail GP35 units 5021 and 5020 (in 5″ striped and 8″ striped large multimark paint schemes, respectively) splice borrowed Chesapeake & Ohio GP30 3004 on a westbound freight, rolling by the yard at Galt on the Galt Sub. White extra flags and nose class-lights lit up suggest this freight is likely running as “CP Extra 5021 West”. Bill McArthur photo, Dan Dell’Unto collection slide. http://www.railpictures.ca The BEST Canadian photos on the Internet, eh? Tue, 09 Jun 2026 23:39:35 +0000 hourly 1 http://wordpress.org/?v=3.1 By: Jakob Mueller http://www.railpictures.ca/?attachment_id=54152#comment-60626 Jakob Mueller Sun, 31 Mar 2024 20:19:48 +0000 http://www.railpictures.ca/wp-content/uploads/2024/03/CP-5021-CO-3004-CP-5020-wbnd-Galt-ON-06-30-1979-Bill-McArthur-docu0018-vAexs-copyr.jpg#comment-60626 I actually really like that way of categorizing these - based on technological change, rather than cosmetic change. At least in retrospect, there is something different about seeing GP30s and 35s versus later models. Today, it is interesting to see "former" 30s and 35s in their rebuilt incarnations, like a BNSF "GP30M" or the ex-ATSF "GP38-3" units CP got from CMQ. Also - a GP9 and a GP35 have the same frame length. They only started getting longer with the 38/40 series. I actually really like that way of categorizing these – based on technological change, rather than cosmetic change. At least in retrospect, there is something different about seeing GP30s and 35s versus later models. Today, it is interesting to see “former” 30s and 35s in their rebuilt incarnations, like a BNSF “GP30M” or the ex-ATSF “GP38-3″ units CP got from CMQ.

Also – a GP9 and a GP35 have the same frame length. They only started getting longer with the 38/40 series.

]]> By: Extra 5610 West http://www.railpictures.ca/?attachment_id=54152#comment-60613 Extra 5610 West Sat, 30 Mar 2024 15:34:27 +0000 http://www.railpictures.ca/wp-content/uploads/2024/03/CP-5021-CO-3004-CP-5020-wbnd-Galt-ON-06-30-1979-Bill-McArthur-docu0018-vAexs-copyr.jpg#comment-60613 For myself, and likely myself alone, I would call these units the culmination of first generation power (the turbocharging of the 567 engine - brought about by the UP Omaha GP20's). To me, the second generation started with the advent of the 645 engine and the room it provided for turbocharging and the corresponding leaps in Hp (and reliable modular electronics). A similar ending came to the 645 with the 50 line of units, as with the above GP30 and GP35. Reliability became a problem as they tried to squeak out all the Hp in the cu. in. available. Thus the 710 brought about the third generation. Okay, the flogging can now commence. :-) For myself, and likely myself alone, I would call these units the culmination of first generation power (the turbocharging of the 567 engine – brought about by the UP Omaha GP20′s). To me, the second generation started with the advent of the 645 engine and the room it provided for turbocharging and the corresponding leaps in Hp (and reliable modular electronics). A similar ending came to the 645 with the 50 line of units, as with the above GP30 and GP35. Reliability became a problem as they tried to squeak out all the Hp in the cu. in. available. Thus the 710 brought about the third generation.
Okay, the flogging can now commence. :-)

]]>