info on M2 engines

[NW Mailing List]

The 61 M2 numbers for the various subclasses as built are:
     M2      1100-49
     M2a    1150-52
     M2b    1153&54
     M2c    1155-60

Ed covers very well the reclassification of these engines, but 
clarification is needed about the application of stokers. The 1136 was the 
first locomotive on the N&W to get a stoker which was in 1911, but was 
after the 1136 was built. All of the other remaining sixty M2's got stokers 
applied in 1915-19; none had them when built.

This information about the stokers was given in my revised book which was a 
change from my original version.

Bud Jeffries

     ----- Original Message -----
     From: NW Mailing List
     To: NW Mailing List
     Sent: Tuesday, August 18, 2009 10:23 PM
     Subject: Re: NW-Mailing-List Digest, Vol 46, Issue 18

     M-2s were not reclassed when superheaters were installed.  They 
remained in class M-2.  The eleven Roanoke-built Ms were in three classes - 
M-2a, M-2b and M-2c.  All differed from the M-2s in having Baker instead of 
Walschaert valve gear.  IIRC, the M-2as had stokers, the M-2bs had 
Hobart-Alfree cylinders and stokers, and the M-2cs had superheaters and 
stokers.  In time, the M-2as got superheaters and were reclassed M-2c.  The 
M-2bs got conventional cylinders and superheaters and were reclassed M-2c. 
  Bud Jeffries has better information about these mods than I do, and can 
probably even give the individual engine numbers.

     EdK