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Pietenpol-List: airfoils

Posted: Thu Jan 15, 2004 8:02 am
by matronics
Original Posted By: At7000ft(at)aol.com
Weav wrote->Now, don't you think the wing section [23012] would make a good Piet >airfoil?This airfoil has gotten kicked around quite a bit on the KRNet, in discussing it as a possible good one for KRs. The crux of the discussion was that the wing has an abrupt stall characteristic, as seen by the sharp break in the lift coefficient curve. Some of this effect can be moderated by using wing washout so the stall progresses from root to tip rather than having the whole wing stop flying at once, but that complicates the wing rigging and decreases the wing efficiency. The EAA Biplane uses this airfoil, so does the T'Craft, the Beech Bonanza, and a host of others... but there are ones with better stall characteristics.It sure would be interesting to get the Piet airfoil tested in a wind tunnel and get some characteristic curves to study! But until then, there will always be hangar discussions about possible airfoils, won't there?Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.netLearn how to choose, serve, and enjoy wine at Wine @ MSN. http://wine.msn.com/___________________ ... __________

Re: Pietenpol-List: taildraggers

Posted: Thu Jan 15, 2004 9:40 am
by matronics
Original Posted By: "Robert Haines"
Subject: Re: Pietenpol-List: taildraggersReally, back in my day we just screamed and yelled at each other.Rick Hawwww come on! you used headsets in a Tcraft?!!!:-)________________________________________________________________________________

Re: Pietenpol-List: airfoils

Posted: Thu Jan 15, 2004 10:58 am
by matronics
Original Posted By: "Fred Weaver"
Subject: Re: Pietenpol-List: airfoilsCorky has been in the hospital for 3 days for tests as his left leg seems to go to sleep so I am going in today at 11:30 to check the test results. He feels fine but is staying in bed. Isablcorky @aol.com--his wife at home at thistime. ________________________________________________________________________________

Re: Pietenpol-List: airfoils

Posted: Thu Jan 15, 2004 11:14 am
by matronics
Original Posted By: "Oscar Zuniga"
The reason I like the 23012 section is less drag with plenty of lift. Nastystall characteristics??? I don't think so. It's a forgiving airfoil thatslides through the air easier than most. What's with all the graphs andcurves anyway? How about good old practical flying? Besides, what do youwant anyway? A faster airplane or one that "Stalls Better"?Weav----- Original Message -----

Re: Pietenpol-List: Buying spruce for AirCamper

Posted: Thu Jan 15, 2004 11:19 am
by matronics
Original Posted By: "Hodgson, Mark O"

Re: Pietenpol-List: airfoils

Posted: Thu Jan 15, 2004 3:43 pm
by matronics
Original Posted By: Isablcorky(at)aol.com
You can tell Corky that the problem with his leg falling asleep during the dayis that it is then up all night!Chris Bobka ----- Original Message -----

Re: Pietenpol-List: Re: Tailwheel training, was : Buying spruce for AirCamper

Posted: Thu Jan 15, 2004 5:14 pm
by matronics
Original Posted By: "John Ford"
John,Making a first flight in a brand new RV-3 with 150 horses up front was areal kick. I had 2 hours total of trail dragger time when I did it and thelanding was the best I ever made before or since. That was 1983. Since Ihave 500+ hours of tail wheel time in the RV-3 and then an RV-6. Only wayto.Alex S.----- Original Message -----