Posted by Jeff Swanson on May 10, 2017 
I have seen these on other F-units of this time period - can anyone tell me the purpose of the 45-degree angle pair of lights atop the hood? They're not ditch lights...
Posted by FSWood on May 10, 2017 
Angled light fixture on locomotive roof is something I don't recall seeing before. Looks like Pyle Dual Oscillating Gyralight detail part for model trains for headlight use on such things as SP diesel locos; SantaFe and C&O RDCs; and even some late steam locomotives. Also brings to mind spotlights C&O (or was it B&O?) had on side of at least one of their dome cars back in those years; and the vertical light on CB&Q Zephyrs which was said to be to help get attention at night at grade crossings.
Posted by Jeff Swanson on May 11, 2017 
@FSWood - if it was mounted someplace on the front of the locomotive (or any of the consist) and was somehow facing down the track (as Gyra lights and the like do) or even track-side, then I would understand and not have a question. But these angle up in the sky (obviously, unless they are somehow adjustable by the crew). Are they maybe somehow used in tunnels? (But again, why the 45-degree angle?)
Posted by FSWood on May 11, 2017 
Your comment hadn't yet been approved and posted at the time I made made with thoughts on the same light fixture.
Posted by Raymond Kennedy on May 11, 2017 
Purpose of those roof lights was to light up the mountains at night for passenger entertainment.
Posted by Jeff Swanson on May 14, 2017 
My apologies Mr. Wood, I did not mean to offend. And thank you Mr. Kennedy - that makes sense.
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