wjb
Well Known Member
I know my little RV wants to grow up to be a F4U Corsair, aka "Whistling Death" ...it's developed a pronounced whistle at 145-150 kts. It's a clean tone ~800 Hz, (~ A above middle C for musical types), significantly loud, and not a vibration; it's some cavity resonating in the airflow.
I initially thought is was something in the gear fairings, with the little cuts to allow the removal of the pants and root fairings. Played with duct tape thought I found the issue at the gear fuse fairing. Liquid shimmed the gap and made those nice and tight now, but it's still there. Yawing, etc, makes some difference, but nothing magical
Other threads have suggested the tail fairing and the cutouts around elevator attach points (rudder I suppose as well), which I'll check.
Anyone else have a baby Corsair on their hands as well? Any success finding your whistle? Any anecdotal info would help to prioritize where to look.
We have a lot YAKs on our field, and I don't want them to hear me coming up on their 6...
I initially thought is was something in the gear fairings, with the little cuts to allow the removal of the pants and root fairings. Played with duct tape thought I found the issue at the gear fuse fairing. Liquid shimmed the gap and made those nice and tight now, but it's still there. Yawing, etc, makes some difference, but nothing magical
Other threads have suggested the tail fairing and the cutouts around elevator attach points (rudder I suppose as well), which I'll check.
Anyone else have a baby Corsair on their hands as well? Any success finding your whistle? Any anecdotal info would help to prioritize where to look.
We have a lot YAKs on our field, and I don't want them to hear me coming up on their 6...
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