Limestone boxcars

[nw-mailing-list at nwhs.org]

John:
I first became aware of the doorless box cars in 1970.  How long were  they
in service ?  Probably Jimmy Lisle can you a better answer.   Neither can
I give you the "drop dead" date on cars equipped with friction  bearings.  I
believe that it's OK to use friction bearings as long as the car remains  on
line and is not interchanged.  I checked the ORER and found that lo  and
behold, Wabash brought some 40 ft. boxes with six foot doors into  N&W
service, but they had only an 80,000 lb. capacity.  How  ancient!   The yellow
ball shown on some cars designated that the car had been inspected  for
the outlawed U-1 wheel.  It wouldn't apply to one of the limestone box  cars,
because the U-1 wheel was for cars with 140,000 lb. capacity.
                                                      Harry Bundy
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