Re: heavy duty trucks on B&LE hoppers


Corey Bonsall
 

Just an educated guess, but could it be some sort of empty / full switch, as to allow only partial braking power when the car was empty to keep it from locking up the wheels?  I know the Kennecott ore car folio sheets (which also used clasp trucks) mentioned some sort of arrangement to use different braking systems depending on whether the car was empty or loaded.

Corey Bonsall

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