Inmate Central: RE: True by Dave_K Inmate Central, where civil and family-friendly discourse about off-audio topics (other than religion and politics) is welcome.

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Posted by Dave_K on October 15, 2021 at 19:16:42

In Reply to: True posted by Craiger56 on October 15, 2021 at 15:52:05:

In general, it's probably easier to put a catalytic converter on a piston engine because the exhaust gas exits through a pipe. Also, the exhaust gas temperature and velocity are much higher at the output of a turbine engine.

Turbines engines burn heavier fuel, and they operate with a different combustion pressure and temperature cycle, so a catalytic converter that works on a piston engine might be less effective on a turbine engine.

But there doesn't seem to be anybody trying to clean up emissions of piston-engined aircraft. They get a pass because they're small, and because of safety. Nobody wants to mess with engine designs that have proven reliable over decades.

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