JJ73 Posted October 9, 2023 Share Posted October 9, 2023 A Steam Loco leaves a tunnels leaving a trail of smoke behind...(24)Ana (@anastolnik)’s videos with Originalton - Ana | TikTok 🤔🚂 Link to comment Share on other sites More sharing options...
What About The Bee Posted October 9, 2023 Share Posted October 9, 2023 How long do you have to wait before the smoke clears?I will suggest a very long time indeed!For a single track line, the locomotive will act like a loose fitting piston.The locomotive will draw air from the tunnel, pulling the smoke with it.At first, I thought the smoke would continue for at least as long as the locomotive took to drive through the tunnel.But the locomotive is not a perfect seal to the tunnel, so it should take quite a bit longer than the locomotive took to drive thru the tunnel.++++The smoke was the reason why cab-forward steam locomotives were used in the USA. The enginemen were being suffocated on the smoke. The solution was to put the footplate (cab) forward of the chimney.Bee Link to comment Share on other sites More sharing options...
What About The Bee Posted October 9, 2023 Share Posted October 9, 2023 Link to comment Share on other sites More sharing options...
JJ73 Posted October 9, 2023 Author Share Posted October 9, 2023 Thanks Bee & Thanks to who ever edited my title - I realised that I had make a mistake after I had pressed 'Enter'!!! 😀🚂 Link to comment Share on other sites More sharing options...
Rana Temporia Posted October 9, 2023 Share Posted October 9, 2023 Bee, I take it that these locos were oil fired or used ground coal fed into the firebox from the tender like some of the USA built SNCF locos? The firebox is next to the cab so the engineer must have been controlling something delivered the whole length of the loco from the tender behind. Link to comment Share on other sites More sharing options...
What About The Bee Posted October 10, 2023 Share Posted October 10, 2023 Hi RanaThe Southern Pacific Cab Forwards were all oil fired. Thus, it was relatively easy to pipe oil forward from the tender. These were also massive articulated or mallet type locomotives, 4 pistons, 2 sets of driving wheels. Used for pulling heavy freight over the Sierra Nevada mountains. Bee Link to comment Share on other sites More sharing options...
AndyMac1707817969 Posted October 10, 2023 Share Posted October 10, 2023 Was that not one of the reasons for cab forward locos, to make long tunnels more survivable for crews especially when there were no ventilation shafts? In some cases crews were issued breathing apparatus. Link to comment Share on other sites More sharing options...
Ducking Giraffe Posted October 11, 2023 Share Posted October 11, 2023 In my shed the smoke never clears, not because I'm a heavy smoker or anything, just that its so much more fun when taking pics.... Link to comment Share on other sites More sharing options...
RDS Posted October 11, 2023 Share Posted October 11, 2023 @Ducking GiraffeI have turned your top picture over. It looks even better the right way up but apologies if it was meant to be upside down. If so, I can turn it back again! Link to comment Share on other sites More sharing options...
What About The Bee Posted October 11, 2023 Share Posted October 11, 2023 I much prefer it right way around, RDS, but will defer to Ducking Giraffe!Bee Link to comment Share on other sites More sharing options...
Ducking Giraffe Posted October 11, 2023 Share Posted October 11, 2023 Well done chaps, glad to see someone's looking after my best interests I've no idea why it got inverted in the first place....! Link to comment Share on other sites More sharing options...
JJ73 Posted October 12, 2023 Author Share Posted October 12, 2023 C😎😎L photos D. G. 🚂 Link to comment Share on other sites More sharing options...
Ducking Giraffe Posted October 12, 2023 Share Posted October 12, 2023 Thanks JJ , as the advertising saying goes, "If you have something to say , say it, if you have nothing to say use showmanship!" My "layout" is pretty pants but I do have fun with the videosgrinning, shooting in the dark with smoke hides a lot of faults. Link to comment Share on other sites More sharing options...
JJ73 Posted October 13, 2023 Author Share Posted October 13, 2023 It doesn't look pants to me, it looks pretty csunglassessunglassesl to me the way you have done the photos mountain_railway Link to comment Share on other sites More sharing options...
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