[Toutouxc]

Do you have a source for that? I’ve heard about something that some twin-props have, but definitely not jets. The engines don’t even run at the same RPM.

[jeffbee]

https://www.osti.gov/biblio/6356085

It is what the "Sync" switch on the panel does.

[Toutouxc]

Yes, but it seems like no turbofan synchrophaser systems have been implemented yet. Only on turboprops.

https://aviation.stackexchange.com/questions/71738/is-engine...