Could also be flexing or flutter from the turn fin.I think maybe I've solved the puzzle . It's caused more than likely by the Brake Lines from the staggered bending process on the Eagle turn fin . Next would be the flutter effect that is shown in the vid ? Interesting .
Awesome shot!This Twin 67-84 uses the same fin material thickness. Smooth flow.
Sure would be interesting to know the cause of the flutter. It's got to be over 15,000 cycles per minute.
Maybe it's in sync with the prop beats. Kinda like a micro prop walk like Rod mentioned.
I thought about the break lines , but the Sam's JRX shows the same phenomenon.I think maybe I've solved the puzzle . It's caused more than likely by the Brake Lines from the staggered bending process on the Eagle turn fin . Next would be the flutter effect that is shown in the vid ? Interesting .
Is this a good phenomenon are a bad one?I thought about the break lines , but the Sam's JRX shows the same phenomenon.I think maybe I've solved the puzzle . It's caused more than likely by the Brake Lines from the staggered bending process on the Eagle turn fin . Next would be the flutter effect that is shown in the vid ? Interesting .
Got to be flutter. The pattern shows evidence of massive bite and lessor bite.
Andy, my shots are taken with 1/2000th of a second shutter speed to try to freeze the boats and most of the spray in the shots. It isn't fast enough to freeze the props. I'm guessing this shot is taken at quite a bit slower shutter speed? This would not show the pattering in the spray.This Twin 67-84 uses the same fin material thickness. Smooth flow.
Sure would be interesting to know the cause of the flutter. It's got to be over 15,000 cycles per minute.
Maybe it's in sync with the prop beats. Kinda like a micro prop walk like Rod mentioned.
Virginia Craftsman turn fin as well..I thought about the break lines , but the Sam's JRX shows the same phenomenon.I think maybe I've solved the puzzle . It's caused more than likely by the Brake Lines from the staggered bending process on the Eagle turn fin . Next would be the flutter effect that is shown in the vid ? Interesting .
Got to be flutter. The pattern shows evidence of massive bite and lessor bite.
I used to think it was caused by choppy water, but the shot of the gas sport on relatively smooth water and Aron's boat also moving through smooth, solid water prove that some kind of oscillation is going on with the fin.
Hmmm. The pattern (frequency) looks similar to a prop rooster tail.Sense we are running single piston motors could it be motor vibration?
Arons motor is a stock new style CMB Evo.Hmmm. The pattern (frequency) looks similar to a prop rooster tail.Sense we are running single piston motors could it be motor vibration?
Wonder if it's different types of motor mounting transferring vibs to the fin causing some movement (flutter)?![]()
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