Brief off topic:
Way in the past, on a day we were flying the local DC-9, they gave us a recorder box with a microphone on a long cord attached.
The purpose was to sample cockpit noise levels.
On taxi out the guy in the right seat gave me a sly grin, opened his sliding window and hung the microphone outside.
When we got to the runway we got one of those "no delay please, keep it rolling, traffic 2 mile final" clearances to go. He quickly closed his window and off we went.
The banging noise on the right side of the fuselage prompted an "Oh $%#" from him and some momentary concern for the right engine, but it stopped after the flaps were up. Engine fine.
We figured the mic was gone, and we had a whole flight to come up with a story. However after we landed, he opened his window and reeled the still attached mic back in.
The folks who analyzed the recording were somehow unable to see the humorous aspect of this.
Be careful what you hang out.
(The F-4 had a yaw string for a time but it only served to scare you at high AOA so it was removed.)
Back to JC's hamsterwheel.