[Pelham]

Ha.I had to look that one up.

“Whirl flutter, or why the wing fell off of my Lockheed Electra.”

[Paladin2]

"Two primary modes exist: backward whirl, which is generally more dangerous and occurs at lower frequencies, and forward whirl, which is often stabilized by gyroscopic effects but can become unstable in specific flexible configurations. "

Doncha know...

[ProtectOurFreedom]

You got it!!

My dad used to fly in Electras when the wings were falling off. Fortunately, I was only 10 years old at the time and did not know about it.