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F4 Foil Tuning Guide question
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utcminusfour
818 posts
utcminusfour
818 posts
10 Aug 2026 11:33pm
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What is Bruce up to and how or why would with this help.
Hydrosurf
290 posts
Hydrosurf
290 posts
11 Aug 2026 4:39am
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My guess is trying to get the foil to stop whistling
Piros
QLD
7320 posts
Piros
QLD, 7320 posts
12 Aug 2026 11:31am
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I'm confused Bruce seems to be doing the reverse of the Donaldson or have I got it wrong ?
segler
WA
1667 posts
segler
WA, 1667 posts
13 Aug 2026 7:23am
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I believe both Bruce and Mario are trying to reduce or eliminate whistling by the trailing edge. Bruce and his team had to do this a lot on the original AFS-2 foil stabilizer trailing edges (I had one).
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