---------------------------------------------------------- Lightning-List Digest Archive --- Total Messages Posted Tue 03/27/07: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:15 PM - Re: Re: Drag Reduction (nick otterback) 2. 05:04 PM - Re: Re: Drag Reduction (N1BZRich@AOL.COM) ________________________________ Message 1 _____________________________________ Time: 04:15:14 PM PST US From: nick otterback Subject: Re: Lightning-List: Re: Drag Reduction If you leave the plane out in a hail storm the entire airframe will be like a golf ball and ought to go faster right? the resulting backspin will reduce torque and p-factor effects too. Disclaimer: leaving aircraft in hail storm may result in other undesired results... Nick N1BZRich@aol.com wrote: Sounds like a "poor man's" BLC (boundry layer control) like we had on the F-4. It only came on when the flaps / slats were down / out, but did help reduce stall speed in the landing configuration by helping to keep the airflow attached. I suspect he is using some sort of "turbulator tape" installed span wise on the wings to achieve the same effect. It will probably lower the stall speed AND decrease the drag at top end therefore resulting in a higher cruise speed or same cruise speed at less power. Should be a win / win situation. Brian, I left a roll of one type of this tape with Nick when I was there last fall. It was in the box with the gap seal material roll. There are several types of turbulator tape - the one I left was more for use in front of control surfaces to make them more effective - such as rudder, elevator, and ailerons. For you golfers out there, it apparently is the same principal that makes dimples on golf balls the best design. Blue Skies, Buz --------------------------------- AOL now offers fr="http://www.aol.com?ncid=AOLAOF00020000000339" href="http://www.aol.com?ncid=AOLAOF00020000000339" target="_blank">AOL.com. --------------------------------- It's here! Your new message! Get new email alerts with the free Yahoo! Toolbar. ________________________________ Message 2 _____________________________________ Time: 05:04:40 PM PST US From: N1BZRich@AOL.COM Subject: Re: Lightning-List: Re: Drag Reduction In a message dated 3/27/2007 7:17:12 P.M. Eastern Daylight Time, vettin74@yahoo.com writes: If you leave the plane out in a hail storm the entire airframe will be like a golf ball and ought to go faster right? the resulting backspin will reduce torque and p-factor effects too. Hey, great idea. You might also want to try that hail storm idea on one of your Corvettes. Should help you with top speed and better cornering during your next auto cross or gymkanna. Just my $.02, your mileage may vary. Buz ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lightning-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Lightning-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/lightning-list Browse Digests http://www.matronics.com/digest/lightning-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.