The SDP-40-F's were once written up in an article I read some many years ago, titled as above. Here the 647 guides the southbound Silver Meteor into West Palm Beach, FL, before the problems were discovered, and the parts were utilized on some newer, 4-axle F-40's.

Photographed by John A. Taylor, February 24, 1977.
Added to the photo archive by John A. Taylor, March 20, 2022.
Railroad: Amtrak.

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