M-2c Class Details

[NW Mailing List]

Roger - 

The M-2 engines with the Walschaerts valve gear were the fifty original Baldwins of 1910 numbered 1100-1149.  Roanoke built eleven more numbered 1150-1160 variously classed as M-2a, M-2b and M-2c.  These engines all had Baker Valve Gear and the subclasses had either Hobart-Allfree cylinders (M-2a) and/or stokers and/or superheaters.  Eventually they were all changed to the M-2c standard of stokers and superheaters, the Hobart-Allfree experiment also seen on the E-2b Pacifics was given up.  There is a photo of the left side of 1157 in the book on the N&W class A and there were several photos of the 1100s in the Thieme picture book.  All the M-2s were eventually equipped with superheaters and stokers.  I don’t know if all the M-2s got feedwater heaters.  The bulge on the side of the cylinders was a form of drifting relief valve.  The single cylinder stoker engine was for a Duplex stoker; most of those were taken off in favor of the Standard stokers with the two cylinders; the 1157 is so equipped.

Hope this helps.

EdKing

From: NW Mailing List via NW-Mailing-List 
Sent: Sunday, January 17, 2016 11:45 AM
To: mailto:nw-mailing-list at nwhs.org
Cc: NW Mailing List 
Subject: M-2c Class Details

Hi, Guys!

Can someone enlighten me as to some differences in the M-2c locomotives? The Sunset HO import has Baker valve gear, BL feedwater heater, single cylinder stoker motor and those odd cylinders with the port on the side between the piston and valve chambers. What was that for?

Which engines do these models represent. I haven't found a picture of the fireman's side of a Baker engine yet. Seems most M-2 engines had Walschaerts vg. I'd like to paint and letter them as specific engines with correct details.

Any help would be greatly appreciated!

Thanks,
Roger Huber
Deer Creek Locomotive Works




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