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Old 11-23-2020, 09:42 PM
Plummit's Avatar
Plummit Plummit is offline
Join Date: Apr 2010
Location: SoCal
Posts: 1,271
Default Aerocomposite Spinner seal

I have an Aerocomposite prop and spinner. Aerocomposite used a U-channel round sleeve in the spinner that rode on the front "hub" of the prop. Mine disintegrated after several years and Aerocomposites is gone. I called American Propeller and they were no help. What have other Aerocomposite owners done to repair this?
Edit: I referred to this as a Seal but it's called a sleeve in the manual.

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Last edited by Plummit : 11-23-2020 at 10:16 PM.
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Old 11-24-2020, 07:58 PM
Rallylancer122 Rallylancer122 is offline
Join Date: Aug 2013
Location: Oconto, WI
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I ran into the same thing earlier this year. The parts no longer exist. I ended up wrapping the prop dome with some stout rubber (I want to say silicone baffle material) and fine tuning the fit with high quality electrical tape.

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Old 11-24-2020, 08:33 PM
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rocketbob rocketbob is offline
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If its polyurethane its likely made out of castable polyurethane. It would be fairly straightforward to make a mold on a lathe or maybe 3D print a mold. Or you could have it 3D printed.

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Old 11-25-2020, 07:41 AM
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Plummit Plummit is offline
Join Date: Apr 2010
Location: SoCal
Posts: 1,271

This "sleeve" looks like something that should be available to purchase somewhere. I called my prop balancer, Jim Fackler, and he suggested Johnson and Son's propeller service as the ACI props are built using a McCauley 400 Series hub. They told me that they had the piece so I rolled the dice and gave them a CC for the $70 part.

In the meantime I cut a piece of a Michelin Air Stop inner tube and it appears that it will work just fine, and it's TSO'd! I'll get a pic tonight.

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