Re: [CBQ] Markers, again. :-)

["jpslhedgpeth via groups.io" <jpslhedgpeth=aol.com@groups.io>]

Winton:  While you're "on a roll" you might mention the proper turning and display of markers in unusual situations  ie  running down a long lead next to the main track.  When running against the "current of traffic on double track, when on siding waiting to be passed by another train etc etc etc.  

Pete

-----Original Message-----
From: Winton <runextra@gmail.com>
To: CBQ@groups.io
Sent: Mon, Apr 18, 2022 12:56 pm
Subject: Re: [CBQ] Markers, again. :-)

The mere _presence_ of marker lanterns on cabooses or the last passenger car were themselves the marker in daylight. In sunny daylight you would not have been able to see any light even if they were lit. At night they had to be lit. Red flags were sometimes used in daylight. There was no requirement for markers on the front of a train and there should not be any displayed.
A _marker_ denotes the REAR end of a train and shows other trains & employees that the train is complete. That is, it has not left any cars behind on the mainline in such situations as doubling a hill or bringing in a disabled car for setout. 
Diesels had built-in electric LIGHTS at the upper corners. These lights could be turned on or off, could be adjusted to show white, green, or red; and could easily be seen in daylight. These lights were normally used as CLASS LIGHTS which are officially known as 'signals'.  IE, white for an Extra train, green for a section of a Regular Scheduled train that is NOT the last section. Dark Class Lights signifies the last or only section of a regularly scheduled train of any class (1st, 2nd, 3rd) except Extra.  Only the FIRST unit of a multiple unit loco (or multiple steam locos) should show the Class Lights.
IF the locomotive was being used as a rear end pusher (helper) on a train then these built in lights should be turned on and adjusted to show red to the rear because now the helper loco is the rear end of the train and thus displays the train's marker. Similarly if light engines (no cars) are moving on the mainline as a 'train', outside of Yard Limits, then they must display the red marker light to their rear and would display white (Extra) class lights on the front. 
The proper display of Class Lights and Markers is absolutely essential to the safe operation of trains. People could be killed if improperly displayed.

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