In-Flight Fire – Maybe in the Rear Engine You Can’t See

[Ernie Martin]

I agree: an engine monitor would provide near-instant information of an exhaust leak in a riser. As to how it would read, I need to think about it. There would be less resistance (freer flow) of the exhaust on that cylinder, but I can't instantly determine how that would affect CHT. On EGT for that cylinder, my initial (read: possibly wrong) reaction is that it would be cooler if the monitor probe is downstream of the leak (because the probe sees less gas) but I would not venture a guess if the probe is upstream of the leak*.

Ernie


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* I have an MS in Mechanical Engineering from Caltech but my combustion skills have atrophied from 20 years working on satellite communications and 20 years running or consulting for high-tech companies.