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Photo by Cliff West
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Southern Pacific Dynamometer
Car #137 was built in 1926 by Standard Steel Car with dynamometer equipment and
instrumentation from the Baldwin Locomotive Works. Designed to measure the performance
of steam locomotives, it was assigned to the Motive Power Department but was
also used for freight car testing. In the 1950s it was equipped with new
instrumentation for diesel locomotive measurements. As measuring technology
advanced, the car eventually became obsolete. It was retired in December 1975
and was donated to the California State Railroad Museum in Sacramento,
California, by Southern Pacific in December 1979.
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