Originally Posted by
megan
Reingestion of exhaust gases with a tail wind not a big thing with fixed wing td, other factors override?
I suppose in a severe case reingestion could present issues, but I'm not aware of any actual problems on large commercial aircraft. The engine nacelles are rather large and long - and with huge bypass ratios - so any exhaust would likely be highly diluted before it made it's way back into the core inlet.