Kato FEF Question

[H Lee]

So is there a consensus on the red light on the front? I asked the same question few weeks ago in one of the FEF related threads.

I was told it was a Mars light and that it is sometimes used while running.  I asked Kelley from Kato USA (in their booth at the Springfield show) as he was involved in the FEF design and he said that it was an emergency light only used when in trouble (I assume similar to the red light on the F40PH for when they dump the brakes) and that it wouldn't be used while running.

So, which is it?  If it was used I'll install a red LED in my FEF-3 - if not - I'm not going to bother.

I believe Kelly - with all of the research that must have been done to produce this very accurate model, I'm sure that if it was used during normal running Kato would have lit it.

On the SP the Red Gyra lights were only used when the brakes went into emergency. I can't imagine why the UP would do otherwise.

There are several pics of the 844 here and none that I looked at had the red light on.
http://www.rr-fallenflags.org/up/up-eng.html

All the pics showed the headlight lit.

[Nato]

   These lights were applyed in the postwar period to FEF locomotives. Light would come on during an emergency stop or backup moves. various photos in books show the before and later after use of the lights referred by most fans as Mars Ocelating Light.                                       Nate Goodman (Nato).