Does anyone know which RR used the lunar aspect first?
The only place I 've seen a lunar aspect is on the ex-B&O main through Fostoria, OH.
SD60MAC9500Does anyone know which RR used the lunar aspect first? The only place I 've seen a lunar aspect is on the ex-B&O main through Fostoria, OH.
Don't know if the B&O was the first to use Lunar in its signal system. In the B&O's CPL's - when equipped the Lunar indications were displayed at the 10 & 4 positions on the 'clock dial' of the signal; both high signal and dwarf - as a part of Rule 290 in my 1953 B&O Rule Book. It could also be displayed as none, one or two reds over top of lunar with a angular blade in semaphore signals.
Rule 290 - Block Occupied. Proceed, prepared to stop short of train ahead. In automatic block territory, proceed at Restricted Speed until entire train passes next signal.
Name of the Signal - Restricting.
With a large part of the B&O being double track with Current of Traffic signaling in one direction on each track. At interlocking, a Restricting signal would be used when routing a train (holding the appropriate Train Order) to operate AGAINST the Current of Traffic on a track.
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SD60MAC9500Does anyone know which RR used the lunar aspect first?
I've heard that lunars an electric equivalent, sucessor if you will, of a banjo (Hall Disc) signal?
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CSX FANDidn't the B&O use them on top of there position signals? The one top center or offset to the left. Jsmie
Forgive me if someone has answered this - the thread is longer than I thought...
The "markers" on the B&O CPLs are "white." At least, they are as white as incandescent lamps can get. Actually, two of them are yellow. Look up "B&O CPL" for the full story.
CSX signal rules do allow for a lunar - it conveys restricting.
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The Milwaukee Road used many lunar and red pot signals in their South Minneaplolis area trackwork. Red meant stop and lunar meant proceed.
tree68 CSX FAN Didn't the B&O use them on top of there position signals? The one top center or offset to the left. Jsmie Forgive me if someone has answered this - the thread is longer than I thought... The "markers" on the B&O CPLs are "white." At least, they are as white as incandescent lamps can get. Actually, two of them are yellow. Look up "B&O CPL" for the full story. CSX signal rules do allow for a lunar - it conveys restricting.
CSX FAN Didn't the B&O use them on top of there position signals? The one top center or offset to the left. Jsmie
When viewed at the same time - Lunar has a bluish caste to it appearance as opposed to the white of the top or bottom 'marker' lights.
Euclid The Milwaukee Road used many lunar and red pot signals in their South Minneaplolis area trackwork. Red meant stop and lunar meant proceed.
I believe that was the standard for many trolley systems, although they may have used white vs lunar.
BaltACD When viewed at the same time - Lunar has a bluish caste to it appearance as opposed to the white of the top or bottom 'marker' lights.
rdamon BaltACD When viewed at the same time - Lunar has a bluish caste to it appearance as opposed to the white of the top or bottom 'marker' lights. I was told once that that was to be able to tell the difference between a lunar and a signal with a broken lens.
About 15 years ago, I came across a color light signal that had the red lens broken out. Although when I first saw it, about 1/4 mile away coming around a curve I didn't know it. The light at first, looking directly at the bulb was yellowish. A kind of washed out yellow. Once we were a few cars from it, I looked back at it and the color had changed to a more white, almost lunar, color. I knew that signal couldn't give a lunar aspect and then I realized it was the bottom light on the head and I could see a chard of red.
I had been only doing about 5 mph when the signal first came into view. I knew I was following a train. I had let my speed raise a bit when I saw the signal, but still wasn't going over 10. I used full service when I realized the red lens had been broken out. We stopped with the engine about one length beyond the signal. I immediately reported what happened.
The washed out yellow color was from looking directly at the bulb. The white, lunar color was looking at the light reflecting off the silver signal housing.
Jeff
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