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Kingairer · January 7th, 2005, 01:16

[ QUOTE ]
I know this sound very well...I flew 1900s for several years. This is interference from the engine igniters during the start sequence that manifests itself through the aircraft speakers. It sounds more like a siren than a beeping noise...but is unmistakable.

Some pilots would pull the speaker circuit breakers to prevent the noise from permeating into the cabin although this was an unapproved procedure.

[/ QUOTE ]

Seems like I remember some sounds like that in the Kingair. I remember at close to idle power the ignitors came on or something liek that, so At short final you would hear the interference sound coming through.

January 7th, 2005, 01:16	#7
Kingairer Old Skool Join Date: Apr 2002 Location: Nomadic...World Wide Boobie Bungalow Bouncer Posts: 3,365	Re: Be1900 beeping? [ QUOTE ] I know this sound very well...I flew 1900s for several years. This is interference from the engine igniters during the start sequence that manifests itself through the aircraft speakers. It sounds more like a siren than a beeping noise...but is unmistakable. Some pilots would pull the speaker circuit breakers to prevent the noise from permeating into the cabin although this was an unapproved procedure. [/ QUOTE ] Seems like I remember some sounds like that in the Kingair. I remember at close to idle power the ignitors came on or something liek that, so At short final you would hear the interference sound coming through.