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 Backing in to reduction ratios

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Greg Mueller

Greg Mueller


Posts : 27
Join date : 2008-07-22

Backing in to reduction ratios Empty
PostSubject: Backing in to reduction ratios   Backing in to reduction ratios Icon_minitimeThu Jul 24, 2008 11:05 am
I wonder if there is a program????

I have a 60x28 prop
I have the Kohler 20hp@3600 (maybe more hp if I fiddle with it)

I wonder if there is a program that will tell me what reduction would be the best for this combo?
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kmccune

kmccune


Posts : 12
Join date : 2008-08-13

Backing in to reduction ratios Empty
PostSubject: Re: Backing in to reduction ratios   Backing in to reduction ratios Icon_minitimeWed Aug 13, 2008 9:17 am
Try prop design
http://www.mail2600.com/PropDesign/index.html
I also like, though it is for RC airplanes, you can scale it up.
http://www.gylesaero.com/freeware/propcalc.shtml
Valley engineering also has some info available on line.


Kevin
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Greg Mueller

Greg Mueller


Posts : 27
Join date : 2008-07-22

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PostSubject: Re: Backing in to reduction ratios   Backing in to reduction ratios Icon_minitimeWed Aug 13, 2008 10:23 am
Thanks Kevin
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kmccune

kmccune


Posts : 12
Join date : 2008-08-13

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PostSubject: Re: Backing in to reduction ratios   Backing in to reduction ratios Icon_minitimeWed Aug 13, 2008 7:01 pm
No problem, I also have one called Prop Design by Edwin Dokus EAA # 51432, but I can seem to remeber where I got it.
Kevin
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PostSubject: Re: Backing in to reduction ratios   Backing in to reduction ratios Icon_minitime
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