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Tunnel ventilation question
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[quote user="Modelcar"] <p><font size="4"></font></p><p><font size="4">....Interesting video.....Alarming, if there would be crew in the following engines...{I'm assuming there was not}.</font></p><p><font size="4">Under this specific situation, I'm even wondering how the following engines have enough oxygen to continue to run....?? And these weren't even steam engines...! {Smoke...}. One would think smoke would be minimal. But realizing if it is upgrade, they probably are in notch 8 and by the appearance, some seem to be "over rich in fuel", or whatever causes all that black smoke.</font></p><p>[/quote]</p><p>It is a lack of oxygen in the tunnel that causes the smoke. The oxygen is reduced while the fuel delivery remains the same, so the condtion is "over rich in fuel" as you say. The last engine seems to be smoking more than the others, but I think they are all clearing up as they get further away from the tunnel. </p><p>Is this a more or less routine occurrance with such trains coming through this tunnel? If it is, it sure would seem to be an attractive photo shoot location, and I would expect to see more videos of the performance.</p>
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