Posted by Goose on December 16, 2011 at 11:12:05 from (173.190.237.126):
In Reply to: Re: Hearing loss posted by oldtanker on December 16, 2011 at 07:16:37:
Speaking of frequencies, here's an interesting story. Once upon a time, I was in the Far East in a Marine jet fighter squadron.
The armament control system in that particular airplane had a function where, whenever the plane was in postition to launch an air to air missile at an enemy aircraft, the pilot got an 800 cycle tone in his headset. The tone remained constant until either a missile was fired or the plane was out of position.
As was the custom, our Commanding Officer always flew the same airplane with the side number "1" on it, while the rest of the pilots flew whatever planes were available. The Colonel kept writing his airplane up that the 800 cycle tone didn't function. Ground crew would check it out, and it would be perfect. Next time the Colonel went up and had occasion to use that function, he wrote the plane up for no 800 cycle tone.
After that happened maybe a half dozen times, the Avionics Officer talked the the squadron Executive Officer, and the Exec tactfully talked to the Colonel. The Colonel had his hearing tested and found he couldn't hear an 800 cycle tone. Yet he could carry on normal conversation as though his hearing was perfect.
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