This is generic seachlight signal question. I posted it here because a lot of the UP and esp. SP had searchlights. Perhaps someone might know the answer.
Has anyone ever seen a searchlight signal with anything other than red/yellow/green colors? It is my understanding that they have a three color roundlet. Could the 3 colors ever be configured to display lunar (white) as one of the three colors? Did any of the western roads like SP use white for a signal or is restricting on those roads red/yellow or red/red/yellow?
What colors did the lower head of seachlight have available? If it was a single train length siding, esp. a non-signaled siding all the lower head would have needed was red/yellow. Did such a roundlet exist?
If you can think of any better forum to post please advise.
Has anyone ever seen a searchlight signal with anything other than red/yellow/green colors? It is my understanding that they have a three color roundlet. Could the 3 colors ever be configured to display lunar (white) as one of the three colors? Did any of the western roads like SP use white for a signal or is restricting on those roads red/yellow or red/red/yellow?
What colors did the lower head of seachlight have available? If it was a single train length siding, esp. a non-signaled siding all the lower head would have needed was red/yellow. Did such a roundlet exist?
If you can think of any better forum to post please advise.
Last edited by train2 on Tue Aug 11, 2009 10:18 pm, edited 1 time in total.