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| PHOTOS: CORY S2 (1503900) | |
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| (1503900) | |
PHOTOS: CORY S2 |
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Posted by kp5308 on Mon Feb 18 19:27:52 2019 The Columbia and Reading (CORY) runs approximately 2-1/2 miles of the ex-Reading & Columbia from the interchange with Norfolk Southern’s ex-Pennsylvania Railroad Columbia & Port Deposit Line at Columbia PA. According to the 2012 NARPS Freight Tariff filing the railroad serves 5 customers. Startup was on January 20th 2010 using this ex-Chesapeake & Ohio Alco S2 switcher: This S-2 is powered by a model 539 turbo-super charged six-cylinder inline four-cycle diesel producing 1000 horsepower. These power plants were built by Alco subsidiary McIntosh & Seymour at their Auburn NY facility then shipped to Schenectady. The engine was installed in the S-2, S-4, RS-1, RSC-1, RSD-1, DL-105, DL-107, DL-108, DL-109, and DL-110 models with production running from 1940 till ’61. The S2 was built between August 1940 and June 1950, with a total of 1502 completed, making the model Alco's most successful switcher. The GE electrical gear consists of a GT553 generator and 4-ea model 731 traction motors. I do not know if the 2-26 retains the original Westinghouse 14EL brake schedule. As built they have a length of 44’ 5”, stand 14’ 5” tall to the top of the cab & weigh 229,700 lbs. Chesapeake & Ohio bought 58 between 5/49 and 1/50. The locomotive pictured was one of 21 built for C&O in September 1949:  I got to see, and more importantly hear it run on the 13th of this month...I could have listened to that chortling 539 for hours:   The box on the walkway next to the cab was added by the short line for spare knuckles, air hoses, tools & other miscellaneous items for some quick fixin' while switching:  The unique truck that bears the inventor’s name was designed by James Blunt, who later went on to become Alco's chief engineer. It uses a cast-steel one piece bolster with side frames chassis and no drop equalizer. The design was superior for service over poor, uneven trackage. This truck was used exclusively by Alco for the switcher line from 1932 to 1950. For years the Association of American Railroads had been after Alco to change its truck design to conform with "AAR Recommended Practice." Thus the builder could not sell its switcher line to US common carrier railroads, most of which were members of the AAR since the Blunt was not listed as an acceptable truck. Ironically, Alco already owned the company building the AAR Type A, General Steel Castings, which it had acquired along with Baldwin during the late 1920s. In 1950 Alco capitulated after it was essentially forced by the AAR to do so. The S1 (660HP) became model S3 & the S2 was changed to S4. Both new models were released in the summer of ’50. The truck in the picture has the roller bearing upgrade, nicknamed "Jack In The Box":  The lineage: Ex-Diamond Crossing Enterprises (JCNX) #27, exx-Claremont & Concord/Pioneer Valley/Frankfort and Cincinnati #106, nee C&O #5015:  |
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Re: PHOTOS: CORY S2 |
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Posted by Dave on Mon Feb 18 20:06:04 2019, in response to PHOTOS: CORY S2, posted by kp5308 on Mon Feb 18 19:27:52 2019. Nice shots!The DL-109 had dual 539T (turbo) diesels. I have a Walters DL-109 in New Haven livery with an ESU LokSound decoder installed. The sound file recreates the twin turbos, which is something to listen to when first starting up! |
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Re: PHOTOS: CORY S2 |
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Posted by kp5308 on Mon Feb 18 20:38:49 2019, in response to Re: PHOTOS: CORY S2, posted by Dave on Mon Feb 18 20:06:04 2019. Thanks! BTW do you know what "turbo-super" charging actually is? |
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Re: PHOTOS: CORY S2 |
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Posted by 3-9 on Tue Feb 19 03:11:39 2019, in response to Re: PHOTOS: CORY S2, posted by Dave on Mon Feb 18 20:06:04 2019. Was there any reason why the Blunt truck was never approved by AAR? |
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Re: PHOTOS: CORY S2 |
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Posted by Dave on Tue Feb 19 06:15:31 2019, in response to Re: PHOTOS: CORY S2, posted by kp5308 on Mon Feb 18 20:38:49 2019. The 539T was turbocharged only. |
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Re: PHOTOS: CORY S2 |
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Posted by Dave on Tue Feb 19 06:18:14 2019, in response to Re: PHOTOS: CORY S2, posted by 3-9 on Tue Feb 19 03:11:39 2019. Good question, I don't know. |
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Re: PHOTOS: CORY S2 |
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Posted by kp5308 on Tue Feb 19 06:50:28 2019, in response to Re: PHOTOS: CORY S2, posted by Dave on Tue Feb 19 06:15:31 2019. The 539T was turbocharged only.I understand that. I'm wondering why ALCO describes it as such in some of the literature on the prime mover. Since the 539 is a 4 stroke motor it does not lend itself to supercharging. ALCO began experiments using the Buchi supercharging system on its 531 engine in the early 1930s but didn't have much success. Was the text of the advertisements distributed by the builder never changed? Some of this doesn't make sense... |
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Re: PHOTOS: CORY S2 |
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Posted by kp5308 on Tue Feb 19 09:44:34 2019, in response to Re: PHOTOS: CORY S2, posted by 3-9 on Tue Feb 19 03:11:39 2019. I didn't find anything when I researched the truck. I also didn't look at export models built after 1950 to determine if Blunt trucks were still being used. |
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Re: PHOTOS: CORY S2 |
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Posted by rkba on Tue Feb 19 15:53:38 2019, in response to Re: PHOTOS: CORY S2, posted by kp5308 on Tue Feb 19 06:50:28 2019. turbochargers were originally called turbosuperchargers; eventually the "super" was dropped and became known as a forced induction method of its' own. |
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Re: PHOTOS: CORY S2 |
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Posted by nasadowsk on Tue Feb 19 17:22:50 2019, in response to Re: PHOTOS: CORY S2, posted by 3-9 on Tue Feb 19 03:11:39 2019. Probably didn't meet $pecification$ |
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Re: PHOTOS: CORY S2 |
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Posted by kp5308 on Tue Feb 19 19:41:38 2019, in response to Re: PHOTOS: CORY S2, posted by rkba on Tue Feb 19 15:53:38 2019. Thanks RK...additionally superchargers are associated with gasoline/methanol fueled motors. |
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