Thanks, I believe I have found the offending plane … Carenado M20 ( latest version !!) - at least when I removed it, the sound has not come back . - and with the drone, the sound was loudest when I was by it as an AI plane, and its engine was running.
I think Wombii did a fix the effectively remove AI sounds for some specific aircraft, – I thought I had it, but cannot find it now !!.
Should be a simple edit to add the … ( BOOM)
And there goes another AI plane, making an excessive noise in my Cockpit …
Could this be being caused by a recent Asobo beta update ??
Now its the Carenado Seminole !!