Mike Buckner Posted March 30, 2023 Share Posted March 30, 2023 A beginner question, if I may... On some locos in banger blue, there is a small red square somewhere on the side, sometimes a red outline filled with white. What is this for? Link to post Share on other sites More sharing options...
Wickham Green too Posted March 30, 2023 Share Posted March 30, 2023 If it's what I think it is, you'll find them on buildings too ...... "Break Glass in Case of Fire" 😊 2 2 1 1 Link to post Share on other sites More sharing options...
Nick_Burman Posted March 30, 2023 Share Posted March 30, 2023 48 minutes ago, Mike Buckner said: A beginner question, if I may... On some locos in banger blue, there is a small red square somewhere on the side, sometimes a red outline filled with white. What is this for? I believe this indicates the type of multiple unit connections the locomotive has and with what other other locomotives it can run in multiple with. Cheers Nicholas 1 Link to post Share on other sites More sharing options...
Steadfast Posted March 30, 2023 Share Posted March 30, 2023 1 hour ago, Mike Buckner said: A beginner question, if I may... On some locos in banger blue, there is a small red square somewhere on the side, sometimes a red outline filled with white. What is this for? It'll be present whatever the livery, just on blue it stands out particularly. There's usually a label next to it with operating instructions. Pictures linked from Flickr, click to take you to the albums of detail pics they're from. 47: Refurb 37. Some classes of loco, such as unrefurbished 37s have same thing but is circular. Jo 1 1 Link to post Share on other sites More sharing options...
Mike Buckner Posted March 30, 2023 Author Share Posted March 30, 2023 Many thanks, everyone. That's cleared it up! Great photos, Jo - underframe details are often overlooked . 1 Link to post Share on other sites More sharing options...
SRman Posted March 30, 2023 Share Posted March 30, 2023 1 hour ago, Nick_Burman said: I believe this indicates the type of multiple unit connections the locomotive has and with what other other locomotives it can run in multiple with. Cheers Nicholas Not these things the OP referred to. You are correct in that many diesels and first generation DMUs displayed multiple working codes, such as a blue star, red circle, blue square (DMU), etc., but these were always over the buffers or slightly to one side at the front of the loco or unit, not along the sides. They were also a lot smaller than the fire control thingy. That's also not to be confused with the coloured dots used on the cab sides of Western Region diesels to indicate route availability. 4 Link to post Share on other sites More sharing options...
F-UnitMad Posted March 30, 2023 Share Posted March 30, 2023 1 minute ago, SRman said: Not these things the OP referred to. You are correct in that many diesels and first generation DMUs displayed multiple working codes, such as a blue star, red circle, blue square (DMU), etc., but these were always over the buffers or slightly to one side at the front of the loco or unit, not along the sides. They were also a lot smaller than the fire control thingy. That's also not to be confused with the coloured dots used on the cab sides of Western Region diesels to indicate route availability. Beat me to it!! 👍😉 1 Link to post Share on other sites More sharing options...
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