 
          grain trains, and is slowly repainting its locomotives into a new
        
        
          all-blue paint scheme.
        
        
          I saw my first blue-painted Pam Am Railways locomotives on a
        
        
          2011 trip to New England. During a stop in Waterville ME I saw
        
        
          MEC 610 waiting to depart with a southbound road freight, I
        
        
          only had time for a quick snapshot of the train, but further rail-
        
        
          fanning trips to New England convinced me I needed to model
        
        
          one of these units.
        
        
          
            Pan Am gets six-axle power
          
        
        
          During 2010 Pan Am acquired 20 six-axle locomotives from
        
        
          Kansas City Southern Railway and Helm Leasing. These were
        
        
          the first six-axle units to join the Pan Am/Guilford roster in
        
        
          many years. All units were rebuilt to SD40-2 standards with
        
        
          16-cylinder EMD 645 engines, but they retain the looks of the
        
        
          SD40, SD45, SD40-2, or SD45-2 models they were originally
        
        
          built as. All 20 have MEC reporting marks, and are numbered
        
        
          600 to 619.
        
        
          When choosing a locomotive to model I decided I would build
        
        
          MEC 610, the unit I saw in Waterville. Research showed this
        
        
          unit was originally a Southern Pacific SD45 and had been
        
        
          rebuilt at least once under the SP’s GRIP rebuilding program.
        
        
          The unit retained several SP features such as split doors on the
        
        
          cab sub-base, and the front windshield had been converted
        
        
          from its as-delivered L-shape to a more common multi-panel
        
        
          window. The steps I used to build this model can also be used
        
        
          to build a Southern Pacific SD45R; some of my techniques can
        
        
          be used on other diesel projects. All of Pan Am’s six-axle units
        
        
          have detail differences, so be sure to consult photos of the
        
        
          exact unit you are modeling.
        
        
          While building my model I constantly referred to pho-
        
        
          tos I found online. Some of the best websites for this are