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General control line discussion => Open Forum => Topic started by: Dwayne on October 06, 2010, 07:26:56 PM

Title: 11/5 3 blade?
Post by: Dwayne on October 06, 2010, 07:26:56 PM

I've looked everywhere I can think even googled it, where can I get a 11/5 3 blade.
Thanks

Title: Re: 11/5 3 blade?
Post by: Paul Taylor on October 06, 2010, 09:01:29 PM

May try here.
http://masterairscrew.com/3-bladeseries.aspx

Not a 11/5 but I am not sure an 11/7 is really a 7in pitch.

Title: Re: 11/5 3 blade?
Post by: Dwayne on October 06, 2010, 09:29:43 PM

Thanks for the reply but I just remembered Zinger...Bingo!  y1

Title: Re: 11/5 3 blade?
Post by: phil c on October 08, 2010, 12:15:58 PM

Quote from: Dwayne Donnelly on October 06, 2010, 07:26:56 PM

I've looked everywhere I can think even googled it, where can I get a 11/5 3 blade.
Thanks

The Master Airscrew checks out at around 5.5 on a pitch guage.  MA appears to use the chord line of the airfoil for pitch, not the flat on bottom of the airfoil.

Title: Re: 11/5 3 blade?
Post by: Dwayne on October 08, 2010, 04:15:27 PM

Quote from: phil c on October 08, 2010, 12:15:58 PM

The Master Airscrew checks out at around 5.5 on a pitch guage.  MA appears to use the chord line of the airfoil for pitch, not the flat on bottom of the airfoil.

Thanks that's good to know I was going to order a 12X4.5 from Steve Wilks and cut it down as the one from Zinger kinda looks heavy. Anyway what I'm doing is mounting a LA 46 upright with with wing mounted landing gear so ground clearence may be an issue.
Thanks
Dwayne

Title: Re: 11/5 3 blade?
Post by: Dwayne on October 08, 2010, 08:11:25 PM

Sheesh I knew it was out there...lol Not quite a 11/5 but close enough.  y1
http://www.evolutionengines.com/Products/Default.aspx?ProdID=EVOE100P

Title: Re: 11/5 3 blade?
Post by: Ward Van Duzer on October 09, 2010, 10:45:34 AM

Before we discovered Bolly props (and their adjustability) the "pipe players" "carved" their own custom props from existing stock. We scraped the trailing edge of the backs of the prop blades with the sharp edge of a straight cut piece of glass, or a # 26 Xacto knife. Do this until the 5 inch pitch measures 4.5, 4.75 or whatever...Then refinish.

FWIW

Ward

Title: Re: 11/5 3 blade?
Post by: Dwayne on October 09, 2010, 08:41:15 PM

Thanks Ward it may be about time I learned how to do that, how did you know what the pitch was? Is this what you used?
http://www.greathobbies.com/productinfo/?prod_id=RVO1008

Thanks
Dwayne