Helper Link is a device or connection used with a helper locomotive/s, in this case the SD70ACUs on the Pittsburgh line through the Allegheny mountains. This device, often part of a radio system, enables communication between the helper engine and the end-of-train device, specifically transmitting brake pipe pressure data. This allows the helpers to cutaway on the fly as shown in the video. #railroad #railway #train #drone #rail #reels #reelsvideo #helperlink #helpers #radio #fall | Craig Hensle

In the world of cab ride videos, this footage is tops. We're on the rear locomotive of a six unit mid-train helper set and climbing Rogers Pass before the new line re-alignment. From the Pentrex show "Best of 1986 Railroading" https://rfd.video/Best1986 | Railfan Depot

What’s the difference between helper locomotives and distributed power units (DPUs) when handling a heavy train on a grade? #railroad #railway #train #drone #rail #reels #dpu #helper #locomotive #question | Craig Hensley Photography