I'm not sure. I haven't tried it on one. I believe it would as long as the flatboat fits between the blades. You can also weld two pieces of square stock on to an impact socket. Angle them so the grab the backside of the blades. An impact wrench should get it off. If it's a 3 blade get a big impact socket and cut three notches in it to fit the blades and roll with that.
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