Thanks for that!Â* But come to Moriarty and listen to the unholy racket
that the CalAir makes.

On 10/17/2020 2:21 PM, Mike Reid wrote:
Your math seems correct, but the speed of sound varies with temperature, and not pressure, so if your density altitude is 8800' because it is 90º F, then the speed of sound is 1252 fps and the tips are subsonic.

Mike

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Dan, 5J