Talk:ALCO DL-109

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The last DL109 was New Haven 0716. It was scrapped in the early 1970s. --SSW9389 22:30, 26 November 2005 (UTC)

The roster on Diesel Shop http://www.thedieselshop.us/Alco_DL109.HTML shows the GM&O units as type DL107 even though they were built two months prior to Rock Island #622 which is shown as a DL105. Steinbrenner pp. 176-178 shows both the GM&O #270-271 and Rock Island #622 as the only examples of type DL105. Steinbrenner's roster on p. 178 shows that the New Haven units were the first DL109s dating from December 1941. --SSW9389 (talk) 14:13, 27 May 2008 (UTC)

Suspect, but don't yet know for a fact that the DL109/DL110 differed from the DL107/DL108 in electrical equipment and specifically in traction motors. The New Haven DL109s were said to have been built with the GE 726 traction motor, an early predecessor of the GE 752 traction motor. This was from a very thorough discussion on railroad.net ALCO Forum about the traction motors used on the DL109s and PA-1s.--SSW9389 (talk) 14:18, 27 May 2008 (UTC)

Further reading into the traction motors used by these locomotives shows that the earlier locomotives like the DL103, DL105, DL107, and DL108 used the GE 730 traction motor and high speed gearing. The New Haven DL109s were the first ALCO passenger diesels to use the GE 726 heavy duty traction motor. There are three discussion threads on this in the ALCO Forum of Railroad.net. See the threads on PA-1 Traction motors, DL100 traction motors and DL109 engines. --SSW9389 (talk) 02:49, 22 July 2008 (UTC)

So there are no surviving DL examples? Like the engine in that B&W photo at the top. --98.232.180.37 (talk) 07:23, 29 January 2009 (UTC)

That is correct the last DL109 was scrapped in early 1970 as Penn Central PP716. There is a mention of it in the article. --SSW9389 12:44, 2 February 2009 (UTC) —Preceding unsigned comment added by SSW9389 (talk • contribs)

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Last modified on 27 April 2010, at 05:10