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Old October 12th 19, 06:18 PM posted to rec.aviation.soaring
Jonathan St. Cloud
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Default Howling sound when flying

On Saturday, October 12, 2019 at 9:45:01 AM UTC-7, Armand Charbonneau wrote:
On Saturday, October 12, 2019 at 9:57:58 AM UTC-6, krasw wrote:
On Saturday, 12 October 2019 18:42:44 UTC+3, Armand Charbonneau wrote:
My Ventus 2c makes a howling sound when flying at 0 flap setting. It is significantly less noticeable immediately after changing the flap setting either positive or negative. Pilots tell me they can hear it when flying overhead or landing. I can hear it seemingly behind me, inside the cockpit. Gear up or down does not seem to make a difference.

The glider was refinished with poly in 2012, so I suspect the wing seals are seven years old. Otherwise the ship in very good condition and soars nicely.

Does anyone know what could be causing this sound? I can replace all the seals this winter, but they appear to be in good condition, except maybe on the tail plane.


Ventus-2c (and D2b) has an extremely loud cockpit. You cannot do much for it.


It is not just in the cockpit. I am told it is loud on the ground when flown overhead.


Well that sucks, literally. Start sealing. I have owned two SH gliders (N4, V2C) and they both benefited from gear well sealing, canopy, rudder, and control surfaces needed S-tape under mylar.