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Originally Posted by Nick PghTrainFanatic:

hey everyone. I know there has been some great anticipation for this set. I figured I should share the fun!  Enjoy, and thanks!  

 

 

 

 

 

 

 

 

image

 

Very nice!  Now, not being a Slobbering Pennsy Fan, I always thought that the 6755, which is in the Pennsylvania Railroad Museum in Strasberg, PA, is an M1b.  Where did I go wrong?

Originally Posted by kjstrains:

Nice to see that Lionel provided nice packaging for this set!  The last few sets have not had any packaging to contain the cars and the engine.  Nice job Lionel!

Absolutely a nice touch!   The MTH twin husky-stack sets (CSX and UP) only had the individual components packaged in a brown shipping box, and Lionel took the same approach for the N&W Pocahontas passenger set.   So I was beginning to think this was the "new norm".  But thankfully, this set and the recent SP "Oil Can" TankTrain set from a couple of years ago had nice set boxes inside the outer shipper.  I think the NYC Water-Level freight set also had a nice set box too.  Definitely adds to the "feel good" factor when purchasing these sets.  

 

David 

H W,

 

      6755 started life as a M1a, was re-built in 1953. From Wikipedia:

 

       The 6755 was built by the Altoona Works in 1930. The 6755 was a class M1a and was used predominantly in freight service, though it would occasionally be used for passenger trains. In 1953, the locomotive went back to the Altoona Works and was rebuilt into a class M1b. The locomotive continued to be used for freight service until January 1957 when it was retired from the roster.

 

Nick,

     Great looking train enjoy it, good luck too.

 

JohnB

Originally Posted by JohnB:

H W,

 

      6755 started life as a M1a, was re-built in 1953. From Wikipedia:

 

       The 6755 was built by the Altoona Works in 1930. The 6755 was a class M1a and was used predominantly in freight service, though it would occasionally be used for passenger trains. In 1953, the locomotive went back to the Altoona Works and was rebuilt into a class M1b. The locomotive continued to be used for freight service until January 1957 when it was retired from the roster.

 

 

JohnB

OK, but did Lionel, and MTH for that matter, produce their models based on the 6755 that is preserved in the PA RR Museum, which is actually an M1b? How would someone that is not a SPF tell the difference between a real M1a and an M1b?

H W,

    The easiest way of telling the difference between a M1a and a M1b is the pilots. The M1a has the old fashion step on pilot and the M1b has a streamline pilot. Similar to the upgrades the Pennsy did on the K4s.

 

    I don't want to guess what Lionel or MTH were thinking but if it is a M1a model it was how the 6755 engine was built and if it's a M1b its how it looks today at the PRR Museum. Lionel and MTH both built M1a and M1b engines.

 

JohnB 

Originally Posted by JohnB:

H W,

    The easiest way of telling the difference between a M1a and a M1b is the pilots. The M1a has the old fashion step on pilot and the M1b has a streamline pilot. Similar to the upgrades the Pennsy did on the K4s.

 

    I don't want to guess what Lionel or MTH were thinking but if it is a M1a model it was how the 6755 engine was built and if it's a M1b its how it looks today at the PRR Museum. Lionel and MTH both built M1a and M1b engines.

 

JohnB 

John, with all due respect the cast pilot does not signify that the locomotive is an M1b.  You're correct in that some of the M1a's were rebuilt into M1b's.  The spotting difference is the attachment points for the thermal siphons (the siphons themselves are internal to the boiler) which rise in a diagonal line at the rear of the boiler above the firebox.  If the siphons are there, it is an M1b.  If the sides of the Belpaire are smooth (no siphons) then it is an M1a.

 

Here are two photos of M1b's, you can see the siphon ends above the running board in front of the cab.

 

http://www.northeast.railfan.net/images/prr6704.jpg

 

http://www.northeast.railfan.net/images/prr6792.jpg

 

M1a locomotives could be found with step pilots:

 

http://www.northeast.railfan.net/images/prr6758.jpg

 

with slat pilots:

 

http://www.northeast.railfan.net/images/prr6759.jpg

 

or with cast pilots:

 

http://www.northeast.railfan.net/images/prr6778s.jpg

 

The lettering on the Lionel tender is the "condensed" style that PRR used in the 1930's.

 

Last edited by Bob

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