I was out flying the CAP's 172 yesterday when I noticed the same thing. A
growling sound. I determined that it was the soda can air vents getting hit
by the prop wash, or rather, the openings being hit and the cans amplifying
the sound.

What were you flying and could it have been the same thing?

mike regish

"Peter Duniho" wrote in message
...

I hesitated to even bother writing about this, since so far it seems like
pretty much a non-event. But then I figured, what the heck...hardly
anyone
ever actually writes about actual flying, however mundane, in this
newsgroup, so here you go...