Pietenpol-List: wing incidence

matronics · Post by **matronics** » Mon Apr 18, 2005 4:56 pm

Original Posted By: "DJ Vegh"
Howdy, Pieters-Actually, I intended this post as a test just to see if it's only me or the list is unusually quiet... but as long as I'm here writing, I'll ask this question. The front cabane struts are to be made 1" longer than the rear ones to provide wing incidence. I believe I saw something in the notes from Don Pietenpol that the 1" differential provides roughly 3 degrees incidence. I have drawn it up in CAD and it works out to more like 2 degrees. Anybody know what it is or should be? I've had to remake my front cabane struts to replace the damaged ones and I made them 1" longer than the rear ones but am curious as to the wing incidence that is supposed to result.My plan when I get ready to re-rig the wings is to set the fuselage level (based on the upper longerons), measure the incidence of the wing center section by using a template of the wing's upper camber and a smart level, then use that angle and the template to adjust the wing struts and brace wires to set the outer wing panel incidence uniformly. I also plan to rig it as Don recommends, with the wingtips about 1" high so that when the supports are removed, the wings will "settle" to level or zero dihedral.I'll go back and search the archives for posts on rigging the wings. As I said, this post was mostly intended to test the Matronics server to see if it's been really quiet the last few days or what.Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________

matronics · Post by **matronics** » Mon Apr 18, 2005 5:43 pm

Original Posted By: "Oscar Zuniga"
mine is set to 1.8DJ----- Original Message -----

matronics · Post by **matronics** » Mon Apr 18, 2005 6:29 pm

Original Posted By: "DJ Vegh"
The angle of incidence and the angle between the two top cabane holes is not the same thing. The angle created by two points, 1" higher than the other, spaced at 28 3/4" (the Pietenpol plans show 27 3/4" between the 1" spars), is 1.99 degrees.....and if the chord line in the airfoil was "flat"...that would be the angle of incidence. But the airfoil's chord line is tilted up from a line that would be drawn between these two holes.....so I believe you would add that 1.99 to the airfoil's actual (and tilted up) angle of incidence.....Jim MarklePlano, TX214.505.6101----- Original Message -----

matronics · Post by **matronics** » Tue Apr 19, 2005 6:34 am

Original Posted By: BernadetteTS

matronics · Post by **matronics** » Tue Apr 19, 2005 7:37 am

Original Posted By: "Phillips, Jack"
Subject: Pietenpol-List: Southwest Regional Fly In (Texas)Any Piet/GN-1 builders/flyers plan on making this event in Hondo? May 13, 14, 15http://www.swrfi.org________________________________________________________________________________Subject: RE: Pietenpol-List: Southwest Regional Fly In (Texas)Date: Tue, 19 Apr 2005 08:39:03 -0400

matronics · Post by **matronics** » Tue Apr 19, 2005 8:41 am

Original Posted By: Steve Ruse
Mr. Smart-Alec (aka, "Jim Markle") wrote->the airfoil's chord line is tilted up from a line that would be>drawn between these two holes.....so I believe you would add>that 1.99 to the airfoil's actual (and tilted up) angle of incidence...Well of course you would. I knew that, but didn't want to go over everybody's head with a bunch of engineer talk and trigonometry ;o) I should have used the proper terminology and all that. But both you and DJ confirmed what I was finding... that the difference in cabane length leads to about a 2 degree incidence change to a line drawn across the bottom (or top) of the two wing spars. What I was trying to get out of my head was the 3 degrees that I'd read somewhere, because that isn't what you get with a 1" cabane strut length difference.Thanks, gents.Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________Date: Tue, 19 Apr 2005 10:11:29 -0400

matronics · Post by **matronics** » Tue Apr 19, 2005 10:00 am

Original Posted By: Super Secret
Subject: Re: Pietenpol-List: Southwest Regional Fly In (Texas)In a message dated 4/19/05 9:13:33 A.M. Central Daylight Time, steve(at)wotelectronics.com writes:I would love to, but my brother is getting married on the 15th and I better bethere or I'll be in trouble.Another great TX fly-in is the Reklaw fly-in in Ocotober. I've seen a Sky-Scoutthere, but would love to see some more Pietenpols or GN-1s. It is a fun ~2-daycamping fly-in, usually around 200 planes on a BIG grass strip in the middle ofthe piney woods in East Texas (Reklaw, TX). You can camp on site, or there is ashuttle that will take you to a nearby hotel. E-mail me if anyone needs moreinformation.http://www.globalair.com/discussions/ge ... gID=363For anyone that is curious, I got my GN-1 home this weekend, a three-day, 820mile trip! It was a great trip, I had a lot of fun, and met some of the nicestpeople around. I'll post some pictures and details when I have time. For nowthough, there is a GN-1 at KGYI in Sherman, TX.Steve RuseN6383J - Coppell, TXQuoting N321TX(at)wmconnect.com:> Any Piet/GN-1 builders/flyers plan on making this event in Hondo? May 13,> 14, 15>> http://www.swrfi.org>> tom________________________________________________________________________________Date: Tue, 19 Apr 2005 10:14:16 -0500

matronics · Post by **matronics** » Tue Apr 19, 2005 10:22 am

Original Posted By: "Phillips, Jack"
Subject: Re: Pietenpol-List: Southwest Regional Fly In (Texas)In a message dated 4/19/05 10:16:08 A.M. Central Daylight Time, covertspecialops(at)gmail.com writes:How many Pietenpols usually show up at Brodhead? I've just ordered plans to build one and might be a good idea to see a few in person. I'm in middle TN and that might make a nice road trip.On 4/19/05, Steve Ruse wrote: --> Pietenpol-List message posted by: Steve Ruse I would love to, but my brother is getting married on the 15th and I better bethere or I'll be in trouble.Another great TX fly-in is the Reklaw fly-in in Ocotober. I've seen aSky-Scoutthere, but would love to see some more Pietenpols or GN-1s. It is a fun ~2-daycamping fly-in, usually around 200 planes on a BIG grass strip in themiddle ofthe piney woods in East Texas (Reklaw, TX). You can camp on site, or there is ashuttle that will take you to a nearby hotel. E-mail me if anyone needs moreinformation._http://www.globalair.com/discussions/georges_h ... ?msgID=363 _ (http://www.globalair.com/discussions/ge ... ?msgID=363) For anyone that is curious, I got my GN-1 home this weekend, a three-day, 820mile trip! It was a great trip, I had a lot of fun, and met some ofthe nicestpeople around. I'll post some pictures and details when I have time. For now though, there is a GN-1 at KGYI in Sherman, TX.Steve RuseN6383J - Coppell, TXQuoting _N321TX(at)wmconnect.com_ (mailto:N321TX(at)wmconnect.com) :> Any Piet/GN-1 builders/flyers plan on making this event in Hondo? May 13, > 14, 15>> _http://www=================================================_ (http://www.swrfi.org/) steve where is hondo located________________________________________________________________________________Subject: RE: Pietenpol-List: Southwest Regional Fly In (Texas)Date: Tue, 19 Apr 2005 11:31:56 -0400

matronics · Post by **matronics** » Tue Apr 19, 2005 11:07 am

Original Posted By: Super Secret

matronics · Post by **matronics** » Tue Apr 19, 2005 1:21 pm

Original Posted By: Super Secret
Dear SS:...I know of three in progress near Huntsville, AL..Carl Vought ----- Original Message -----

matronics · Post by **matronics** » Tue Apr 19, 2005 9:07 pm

Original Posted By: "Phillips, Jack"
Subject: Pietenpol-List: basswoodhas anyone used basswood for the longerons or spars on a piet________________________________________________________________________________Subject: RE: Pietenpol-List: basswoodDate: Wed, 20 Apr 2005 08:13:15 -0400

matronics · Post by **matronics** » Thu Apr 21, 2005 8:16 am

Original Posted By: "Phillips, Jack"

matronics · Post by **matronics** » Thu Apr 21, 2005 8:16 am

Original Posted By: "John Ford"

matronics · Post by **matronics** » Thu Apr 21, 2005 9:47 am

Original Posted By: N321TX(at)wmconnect.com
Subject: Re: Pietenpol-List: basswoodBasswood was the choice of piano manufactories for the keyboards. Light and strong.________________________________________________________________________________

matronics · Post by **matronics** » Fri Apr 22, 2005 1:55 pm

Original Posted By: "Phillips, Jack"
Subject: Pietenpol-List: NX registration?How does one apply for the NX registration number? I found a number that was available and sent off my paperwork with a check, and it came back from the FAA with a form letter stating NX isn't available.Is something you "negotiate" with the FSDO when they do the final paperwork?Sterling5TA6________________________________________________________________________________Subject: RE: Pietenpol-List: NX registration?Date: Fri, 22 Apr 2005 15:07:53 -0400

matronics · Post by **matronics** » Fri Apr 22, 2005 2:13 pm

Original Posted By: N321TX(at)wmconnect.com
no, you don't ask for it, just like you don't ask for the "N". Get your numberand put NX ahead of it. ----- Original Message -----

matronics · Post by **matronics** » Fri Apr 22, 2005 2:35 pm

Original Posted By: Kevin Holcomb

matronics · Post by **matronics** » Fri Apr 22, 2005 3:22 pm

Original Posted By: Michael D Cuy

Brodhead Pietenpol Association