BillL
Well Known Member
Many aircraft engines have their own distinctive sound.
Does the IO-540-D4A5 have a distinctive whine, maybe a gear train sound?
I heard my friend's 10 fly over a couple of weeks ago and heard a whine. It was distinctive and thought it sounded like a gear sound.
He independently brought the subject up a week later and is now fixated on finding the cause after his wife asked about "that sound". I am just polling the braintrust to see if it is a known sound.
How many teeth are on the crank driver gear? That should help identify the frequency.
Final Edit: Problem solved: See post #22
Does the IO-540-D4A5 have a distinctive whine, maybe a gear train sound?
I heard my friend's 10 fly over a couple of weeks ago and heard a whine. It was distinctive and thought it sounded like a gear sound.
He independently brought the subject up a week later and is now fixated on finding the cause after his wife asked about "that sound". I am just polling the braintrust to see if it is a known sound.
How many teeth are on the crank driver gear? That should help identify the frequency.
Final Edit: Problem solved: See post #22
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