Sensenich 4 blade R vibration

Airboat propeller discussion.
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wvhillbilly
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Sensenich 4 blade R vibration

Postby wvhillbilly » Sun Aug 06, 2017 5:09 pm

I have a prop vibration. This is the only prop I have ever ran so not sure if some vibration is normal? It seems excessive. The boat has been inside for about a year so don't think it could be water in the blades.
15' 6"x 8' Hamant, 416CI LS, 82" 4 Blade R, 2.68 Gearbox

SWAMPHUNTER45
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Re: Sensenich 4 blade R vibration

Postby SWAMPHUNTER45 » Sun Aug 06, 2017 10:48 pm

You need to check each blade to see if one may have moved.

We measure from fixed point to trailing edge and strive to be as true as possible.

Many things it could be but that's the first place to look.

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goldhunter_2
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Re: Sensenich 4 blade R vibration

Postby goldhunter_2 » Mon Aug 07, 2017 8:49 am

unless it was air conditioned area you could still build up condensation in the blades

you are sure this is a matched tip weight set of blades (or at least staged pairs) and not just four random R blades

IF you do not have condensation and it is match tip weight set of blades, then you either have a broken or loose hub bolt or your blades need to be reset as at least one is out of alignment
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THE NIGHT RIDER
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Re: Sensenich 4 blade R vibration

Postby THE NIGHT RIDER » Tue Aug 08, 2017 11:36 am

In my exp one degree off on one blade will vibrate bad ,

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