SSTjumbo
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Posts: 2579
Joined: Sun Jun 17, 2001 3:29 am

Was It Fan Growl I Heard?

Fri Oct 12, 2001 1:22 pm

Taking off on a United 747-200 N165UA (former Quantas), I heard what sounded like the engine of a Pontiac Grand Prix. Was that fan growl?
I don't know, so this is my signature.
 
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RE: Was It Fan Growl I Heard?

Fri Oct 12, 2001 1:29 pm

Yeah, that sound was the tips of the fan blades going supersonic.

That phenomena is VERY pronounced on the DC10. Really cool humming sound at takeoff power.
 
SSTjumbo
Topic Author
Posts: 2579
Joined: Sun Jun 17, 2001 3:29 am

RE: Was It Fan Growl I Heard?

Fri Oct 12, 2001 1:41 pm

thanx  Smile
I don't know, so this is my signature.