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April 30, 2006
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PRR S1 6100 Duplex by yankeedog PRR S1 6100 Duplex by yankeedog
Pennsylvania Railroad S1 No. 6100 was the darling of the 1939 Chicago World's Fair. Her tender was lettered "American Railroads", she represented the latest development in steam power and design. Built at Juniata Shops in Altoona, Pennsylvania, she was the biggest locomotive in the world! Some will argue, that the Union Pacific "Big Boy" freight locomotive was the bigger, but the S1 was 140' 2.5" stem to stern, the Big Boy was only 137' long. Although not as successful as the UP Big Boy, she was certainly the most beautiful of the two with her sleek Raymond Loewy streamlined styling. Built for high speed passenger service, with a 6-4-4-6 wheel arraignment, she was powered by four huge 22" cylinders with a 26" stroke and a steam pressure of 300 pounds per inch to drive her eight 84 inch driving wheels! She was built to travel at speeds of 100 mph+ with a full consist of heavy weight pullman cars. Weighing in at 1,0006,010 lbs, the S1 could more than handle any train! The S1 was so big she could only operate on lines west of Pittsburgh on the flats of Ohio and Indiana were she could really stretch her long legs. Crestline, Ohio was the place that she called home. Rumor had it that she was a bit slippery, but in the hands of a good engineer, she was more than capable of pulling all the Pennsy's named passenger trains west of Pittsburgh. Valuable information was learned with the S1 and that was later incorporated into T1 [link] [link] Sadly the S1 was scrapped by the railroad in 1949. Complicated, difficult to work on and too large to operate over most of the Pennsylvania System helped spell her demise. The S1 was just over the top too much! I guess big isn't always better.

Adobe Illustrator 8.0, Apple G4 Power Mac, OS 9.2
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:iconrockyrailroad578:
Rockyrailroad578 Featured By Owner Apr 2, 2014  Hobbyist Traditional Artist
This thing is a classic BEAST! She is a very handsome engine, and the streamlining makes her a strange shape that pleases the eye!
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:iconyankeedog:
yankeedog Featured By Owner Apr 10, 2014
It was beautiful.
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:icondecophoto32:
decophoto32 Featured By Owner Mar 22, 2014  Hobbyist Photographer
Was the t-1 successful ? 
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:iconyankeedog:
yankeedog Featured By Owner Mar 28, 2014
The T-1 was moderately successful, but the timing was bad. American railroads were starting to dieselize and these locomotive required a whole lot of maintenance. They were fast and saw a lot of use from Pittsburgh to points West. A T1 on the Fort Wayne Division was reported to have exceeded 125 mph! The C&O did some testing on one and were very pleased with the T1, but in the hands of an inexperienced or unskilled engineers, the T1 was slippery and difficult, prone to wheel slip and valve damage.
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:icon250688:
250688 Featured By Owner Mar 3, 2011
the tyrone libary is in danger of closing because of lack of funds please help if possible
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:iconsquirrelkinns:
squirrelkinns Featured By Owner Feb 17, 2011
Had to fav! I have this one one my railroad.
[link]
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:iconyankeedog:
yankeedog Featured By Owner Feb 21, 2011
Thanks! It's a shame this historic locomotive wasn't preserved.
-YD
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:iconjoetraincool:
joetraincool Featured By Owner May 30, 2010
The Penssy S-1 is one of my favorite standard gauge locos, if not my favorite. Even if it was deemed a failer. Also, this picture is probably my favorite artwork done of the S-1. Epic win and insta-fav (just thought I'd through in some useless internet cliches). Great work.
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:iconyankeedog:
yankeedog Featured By Owner May 30, 2010
Thanks! One of my favs too! The S-1 was an enigma. It combined all the best that the Pennsy design department had to offer, but none of the "Standard" elements that made the Pennsylvania Railroad great. The Pennsy was noted for practical efficient designs that were so thoroughly tested at the Juniata shops, that by the time a new design hit the rails, it was Fait accompli. The S-1 was a dream machine and more of a testbed of unproven impractical technology that didn't match up with the infrastructure of most of the PRR. It could only be run West of Altoona and was more in it's element on the long flats of Ohio. It couldn't roam the system end to end and was relegated to Crestline. The S-1 was the Pennsy flexing it's design muscles for the 1939 Chicago World's fair and had no practical use other than an successful exhibit, but WOW what an exhibit!
-YD
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:iconjoetraincool:
joetraincool Featured By Owner May 30, 2010
Completely true on all acounts, if only Pennsy had updated their railway a little, perhaps with straighter track, we could have seen more S-1 on more lines, or even an improvement (not including the T-1). It was slightly wasted on that treadmill at the fair, but hey, it was running. Streamlined steam is so awesome, and probably the reason I love the S-1 so much is because 1) it was very radical in science and design 2) it was the only one of its kind to be built and 3) it had a very unique wheel arrangement 6-4-4-6. Something about having six wheels that are not the driving wheels just gets to me, since most locos had 2 or 4 leading and trailing wheels. Another one of my favorites is the Allegheny which is 2-6-6-6. It's just unique. So anyway, great artwork.
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