10 Sounds You May Never Hear Again...

Their`s a National Guard air base in Martinsburg WV that used to fly, I guess c-130s? prop planes, We don`t hear them anymore.
Now they have those huge cargo jets, man they can be loud!

I know what you mean, mopar head. I live between a couple of small airports (Fullerton and Chino) here in SoCal so we hear single-engine prop planes all the time. Occasionally, I'll hear a multi-engine prop and it always makes me look up to see what it is - and most often it's a cool older aircraft.