Original Posted By: "taildrags"
Doing an informal head count, it appears as if Brodhead might be light ofplanes this year. Sounds like some of the "regulars" (Mikee, Jack,Perkins??, aren't able to make it. darn!Sounds like, Greg, Dan, me, hopefully another black and yellow bird?, one ortwo Pavliga's, hopefully Don??? Who am I missingIs Matt flying in? Randy?Douwe________________________________________________________________________________Subject: Pietenpol-List: the cover of Contact! Magazine
Pietenpol-List: the cover of Contact! Magazine
Re: Pietenpol-List: the cover of Contact! Magazine
Original Posted By: dog67(at)aol.com
William,I got out my copy of Harry Riblett's GA Airfoils this morning before I went towork and it looks like for a cruise lift coefficient of .55 the angle of attackfor his GA30-612 is around one degree positive. Looking at the ordinates forthis airfoil and assuming a wing is constructed with the front spar at 12% ofthe chord and the rear spar at 60% of the chord, as Mr. Pietenpol designed it,I calculated the front cabane should be 1/2 inch shorter than the rear cabaneto achieve this one degree positive angle of attack. This assumes that thebuilder constructs the wing with the ribs butted into the bottom of the spars.Doug WrightStillwater, OKRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: the cover of Contact! Magazine
William,I got out my copy of Harry Riblett's GA Airfoils this morning before I went towork and it looks like for a cruise lift coefficient of .55 the angle of attackfor his GA30-612 is around one degree positive. Looking at the ordinates forthis airfoil and assuming a wing is constructed with the front spar at 12% ofthe chord and the rear spar at 60% of the chord, as Mr. Pietenpol designed it,I calculated the front cabane should be 1/2 inch shorter than the rear cabaneto achieve this one degree positive angle of attack. This assumes that thebuilder constructs the wing with the ribs butted into the bottom of the spars.Doug WrightStillwater, OKRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: the cover of Contact! Magazine
Just glad to help out.If anyone is interested - I'm always up for shooting more pictures and would love to get more air-to-air shots of Piet's at Brodhead 
I'm just jealous that you are getting to go diving ;)CheersJon-----Original Message-----