No more adjustable prop?

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Re: No more adjustable prop?

Postby MichaelFarley56 » Tue Aug 05, 2014 10:34 pm

This is completly my opinion but I'd still be nervous with the additional weight of the adjustable prop and hub. Plus, if people are having issues with the adjustable pitch prop (Sonex included if it's true one failed in flight), I personally wouldn't consider it for my engine. Too many questions and concerns.
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Re: No more adjustable prop?

Postby fastj22 » Tue Aug 05, 2014 10:47 pm

Viking just posted on their forum that one of their demo planes sat out in the rain at AirVenture and when they started it to leave, it shook badly. Turned out one of the blades had water in it.

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Re: No more adjustable prop?

Postby N541X » Wed Aug 06, 2014 6:31 pm

wonder how Viking got water in the prop. If they are hollow core blades, they would need a breather hole somewhere, or maybe they had a delam on the blade halves? Were the blades stowed hor or vert? My guess would be hor to keep folks from bumping into them.
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Re: No more adjustable prop?

Postby mike.smith » Wed Aug 06, 2014 11:59 pm

MichaelFarley56 wrote:This is completly my opinion but I'd still be nervous with the additional weight of the adjustable prop and hub. Plus, if people are having issues with the adjustable pitch prop (Sonex included if it's true one failed in flight), I personally wouldn't consider it for my engine. Too many questions and concerns.


The adjustable pitch prop weighs the same as a wood prop on a Sonex, so weight isn't an issue.

Mike Smith
Sonex #439
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Re: No more adjustable prop?

Postby mike.smith » Thu Aug 07, 2014 12:00 am

N541X wrote:wonder how Viking got water in the prop. If they are hollow core blades, they would need a breather hole somewhere, or maybe they had a delam on the blade halves? Were the blades stowed hor or vert? My guess would be hor to keep folks from bumping into them.


I have the prop, and the blades are hollow. But I've not seen a breather hole anywhere. I only have 10 hours on the prop, but no issues.

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