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Old 02-16-2018, 02:25 PM   #8 (permalink)
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Frank Lee never forgets.

gumby79 — A Gurney flap or something? It would probably add more drag than thrust. I suspect the problem with anti-cavitating props is air bubbles eating the metal. Those flutes may be for vortex generation or something.
It used to be that the news would tell you what happened and you had to make an opinion on the subject. Now the news tells you their opinion and you have to decide if it even happened.

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