 
          
            Couplers
          
        
        
          Unlike weights, the cou-
        
        
          pler treatment differs
        
        
          depending on the role
        
        
          of the car.
        
        
          Through hopper trains
        
        
          operate essentially
        
        
          as unit trains on the
        
        
          layout. They move in
        
        
          solid blocks and never
        
        
          need to be uncoupled,
        
        
          reversed, or switched.
        
        
          These cars are almost
        
        
          all equipped with non-
        
        
          operating knuckle cou-
        
        
          plers. Several coupler
        
        
          varieties are used, depending on the model.
        
        
          Most of the four-bay hoppers on the railroad are Bowser PRR
        
        
          H21 hoppers. These were originally offered with Rapido cou-
        
        
          plers, and of course, I bought a bunch just as soon as I could, all
        
        
          with these non-scale couplers. Fortunately, AccuMate offered
        
        
          a reliable T-shank knuckle replacement, now sold by Red
        
        
          Caboose. These fit perfectly in the Bowser coupler pocket and
        
        
          are an easy change.
        
        
          Additional three-bay and four-bay hoppers from other Eastern
        
        
          roads including C&O, B&O, and NYC are available from Athearn,
        
        
          Atlas, Bluford Shops and others. A few of these break up the
        
        
          monotony of the PRR hopper blocks. They are all equipped
        
        
          with Micro-Trains trucks/couplers and low profile wheel sets.
        
        
          Comme-N-tary Column - 3
        
        
          
            3
          
        
        
          3: AccuMate (Red Caboose) T-
        
        
          shank couplers fit easily into the
        
        
          Bowser trucks.
        
        
          A few of the PRR cars have a body-mount M-T coupler on one
        
        
          end (more on these later) to allow easy coupling to locomo-
        
        
          tives, cabooses (cabin cars), and the other hoppers.
        
        
          The hoppers used for the Cresson turns are almost all two-
        
        
          bay cars, and most of these are Bowser PRR GLa models. By
        
        
          the time these models came out, Bowser had switched to a
        
        
          knuckle coupler. Quite a few other manufacturers, including
        
        
          Atlas and Micro-Trains, also offer a variety of two-bay hoppers,
        
        
          with a variety of knuckle couplers.
        
        
          All of these are designed to operate on narrow N-scale
        
        
          curves. In order to do so, the cars couple at greater-than-
        
        
          prototype distances. The cars on the Cresson jobs also need
        
        
          to operate reliably in reverse in cuts of up to a dozen cars.
        
        
          The best way to achieve this (in any scale) is to equip the cars
        
        
          with body-mount couplers. Fortunately Leonard White came
        
        
          up with a solution that addresses both issues.
        
        
          Most of these two-bay cars have a dimple designed to fit the
        
        
          screw mount for M-T 1015 magnetic body-mount couplers. The
        
        
          car knockers began equipping the fleet with these couplers;
        
        
          they are reliable and good-looking. Soon, however, the shops
        
        
          found an easier, less-expensive solution.
        
        
          AccuMate (now Red Caboose) also offers a body-mount non-
        
        
          operating knuckle coupler. This one-piece coupler fits perfectly
        
        
          when screwed to the same dimple designed for the M-T cou-
        
        
          pler. As it turned out, there is no need for a coupler box. There
        
        
          is enough play in the mounting and the coupler that the cars
        
        
          move through the yard’s #5 turnouts without difficulty.
        
        
          The Cresson fleet ended up with a mix of cars. Most have
        
        
          AccuMate/Red Caboose non-operating couplers, and a few cars
        
        
          have M-T body-mount couplers at one end to allow uncou-
        
        
          pling from the engine or cabin car. This solution produced
        
        
        
        
          MRH-Jun 2013