Early interior of the Dynamometer Car known as the X-5000.
Actual page from the log book for the Dynamometer car.
Here’s a man working in the X-5000 reading charts.
May 1974 interior of working X-5000 car.
Close-up of the charting technology of the day in 1974.
Video monitor for monitoring couplers and trucks for slack action. Apparently there is a break for a little entertainment for the crew.
Inside the X-5000 at the recorder.
It was not all glamour! Tedious work included counting endless mileposts. The switch at his right forefinger was pressed at each milepost which put a mark on the chart recording.