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Slave Strut Flutter

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TxSkyBolt

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My Skybolt has a thin cord taped to the inside of the slave strut ostensibly to control flutter. Whilst flying on Sunday, the tape on the right one started to come off and pretty soon the entire length of string and tape departed. There was no noticeable flutter and no adverse vibration in the stick. Is the flutter (if there really is any) visually noticeable? My thought was to go ahead and remove the other.

I did note that with just the small added drag of the left slave strut, there was a pronounced left bank with hands off the stick.
 

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