On 10-19-97 RICK JONES wrote to KEN FREEMAN... 
 
 RJ>    The UP X9000 (or is it 9000X?) was, IIRC, a 4-10-2 three cylinder  
 RJ> locomotive. The 3rd cylinder was connected by a crankshaft to the 2nd 
 RJ> driver  
 RJ> axle. The linkages that allow the 3rd cylinder to operate would be 
 RJ> interesting  
 RJ> to see, IMO. Somebody else (SP?) had a 4-12-2 that was also 3 
 RJ> cylinders.  
  
 Thanks for the info. I seem to recall an NMRA clinic a couple  years back 
 discussing 3 cylinder steam engines. This one was on NYC units, which also  
 had some interesting linkages. guess they weren't too successful.........and 
 a maintainence nightmare.  
                                   K 
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