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Propeller pitch question.

 
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Scott Stewart



Joined: 29 Jul 2008
Posts: 30
Location: Windsor, California

PostPosted: Tue Jul 30, 2013 4:27 pm    Post subject: Propeller pitch question. Reply with quote

Hi Folks,

I'm getting really close to finishing my plans-built CH-640. I'm to the point I need to buy the propeller, and I want to compare the performance of climb versus cruise pitches.

From Zenair, I was supplied the FWF pick list which shows the Sensenich 76EM8-0-54. On the Sensenich website, their propeller selection guide shows 76EM8-0-61, 63, or 65 are appropriate for the CH-640. This is a really wide range of pitches: from 54" to 65".

I don't want to buy an under-pitched propeller since I want to do a lot of long distance cruising. And, of course, an over-pitched propeller will stress the engine too much. So what does the group think? What pitch are you using, and how well does it work for you?

Thanks.


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Scott Stewart
CH-640 built from plans
Flying since August 2014
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