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Simple prop mod (on Q-tip) yields 5 knots

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MPPalmer(at)aol.com
Guest

Posted: Sat Jul 11, 2009 11:11 pm Post subject: Simple prop mod (on Q-tip) yields 5 knots

Preliminary details, with pictures, at  

 

http://members.cox.net/mppalmer/ 

 

Click on the link titled "Q-tip prop mod" 

 

Basically, I cut (sheared) the leading edge of the winglets on our Hartzell Q-tip prop, based on some inspiration from a Paul Lipps article. We gained 5 knots and fly a little more nose down than before.  

 

Frankly, I have a hard time believing it, but that data seems consistent. 

 

Mike Palmer <>< 

**************

Looking for love this summer? Find it now on AOL Personals. (http://personals.aol.com/?ncid=emlcntuslove00000003)  [quote][b]

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robin02(at)mindspring.com
Guest

Posted: Sun Jul 12, 2009 5:55 pm Post subject: Simple prop mod (on Q-tip) yields 5 knots

Mike, nice article. Thanks.   I opted for the 74"  blades years ago and picked up 7MPH true.  Do you have any resonance info  on this combined with a o-320?  I have the Van's wheel pants finished and  have flown a couple of times but need to fly more to determine the  improvement. It looks like another 5MPH but can't be sure yet; the air is pretty  unstable in Florida right now.  This is all Van's. I had a very good fit on  the old pants and the new ones were very carefully installed.  I found the  Van's pants hide more of the wheel in flight yet have more ground  clearance.....a nice combination.

  

 Anything you can offer on the 7663-2 blades is  appreciated.  RObin Young



   From: owner-glasair-list-server(at)matronics.com  [mailto:owner-glasair-list-server(at)matronics.com] On Behalf Of  MPPalmer(at)aol.com

Sent: Sunday, July 12, 2009 2:59 AM

To:  glasair-list(at)matronics.com

Subject: Simple prop mod (on  Q-tip) yields 5 knots

 

Preliminary  details, with pictures, at 



http://members.cox.net/mppalmer/  



Click on the link titled "Q-tip prop mod" 



Basically, I cut  (sheared) the leading edge of the winglets on our Hartzell Q-tip prop, based on  some inspiration from a Paul Lipps article. We gained 5 knots and fly a little  more nose down than before. 



Frankly, I have a hard time believing it,  but that data seems consistent. 



Mike Palmer <><  

**************

Looking for love this summer? Find it now  on AOL Personals. (http://personals.aol.com/?ncid=emlcntuslove00000003)  	  Quote: 	
		  



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