---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Sat 04/21/07: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:35 AM - Re: Tail attachment (Ed G.) 2. 11:19 AM - GN-1 Roll call (Ryan Michalkiewicz) 3. 12:03 PM - Re: GN-1 Roll call (Mike King) 4. 12:23 PM - Re: lowell frank's stats-- Roman's Drawings (Tim Willis) 5. 03:03 PM - Re: GN-1 Roll call () 6. 06:08 PM - Re: GN-1 Roll call (skellytownflyer) ________________________________ Message 1 _____________________________________ Time: 07:35:09 AM PST US From: "Ed G." Subject: Re: Pietenpol-List: Tail attachment Hi Santiago...There are probably several ways to do the tailpost fittings but I just made a couple of small 1/8" plywood wedges and glued them to the tailpost so that the fittings would sit square to the centerline of the fuselage. It worked out fine. For the front of the stabilizer most builders are replaceing the #7 wood screws with 8-32 an bolts through the main beam. I put self locking nut plates on the bottom of the longeron but again, there are different ways to do that too. I haven't decided how I will fasten down the leading edge yet. Ed G. ----- Original Message ----- From: santiago morete To: pietenpol-list@matronics.com Sent: Friday, April 20, 2007 11:00 AM Subject: Pietenpol-List: Tail attachment I have seen in the archives a question about the attachment of the horizontal stab to the fuselage (from Rick Holland) that intererst me, and since it doesn't have an answer I will post it again. The two bottom fittings are attached to each other with two horizontal bolts through the fuselage tailpost, however the fuselage sides are angled. Did you guys makes 4 wedged shaped washers out of something so the bolt head and nut seat flat or add 2 wood wedges for the fittings to sit on? I will use bolts, no rivets. Another question, I have seen Piets with the horizontal stab bolted at the leading edge, main spar or both. I plan to bolt it trough the main beam. What would be recommendable? Thanks Saludos Santiago ------------------------------------------------------------------------- ----- Pregunt=E1. Respond=E9. Descubr=ED. Todo lo que quer=EDas saber, y lo que ni imaginabas, est=E1 en Yahoo! Respuestas (Beta). http://www.matronics.com/Navigator?Pietenpol-List ________________________________ Message 2 _____________________________________ Time: 11:19:23 AM PST US From: Ryan Michalkiewicz Subject: Pietenpol-List: GN-1 Roll call I am just wondering how may Grega fliers are on the list. What stage is your project in? What fuselage? What engine? Any other mods? Myself, I have ordered "Complete" plans from a "guy" in Oregon. We will see what arrives at my door if anything. I have been practicing my welds, I was getting a little worried, but I am feeling better about them. I have a Corvair core, ready for tear down. Thanks all, -Ryan --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos. ________________________________ Message 3 _____________________________________ Time: 12:03:16 PM PST US From: "Mike King" Subject: Re: Pietenpol-List: GN-1 Roll call Mike King GN-1 77MK Ponder, Texas (Dallas/Ft. Worth area) Built in 1985 A-80 Cont. Several hundred hours of flying time Dual controls / instruments ELT, radio antenna, digital tach, slide bar to step into rear cockpit (will install smoke system and gap seals in 2007) ----- Original Message ----- From: Ryan Michalkiewicz To: pietenpol-list@matronics.com Sent: Saturday, April 21, 2007 1:18 PM Subject: Pietenpol-List: GN-1 Roll call I am just wondering how may Grega fliers are on the list. What stage is your project in? What fuselage? What engine? Any other mods? Myself, I have ordered "Complete" plans from a "guy" in Oregon. We will see what arrives at my door if anything. I have been practicing my welds, I was getting a little worried, but I am feeling better about them. I have a Corvair core, ready for tear down. Thanks all, -Ryan ------------------------------------------------------------------------- ----- Ahhh...imagining that irresistible "new car" smell? Check out new cars at Yahoo! Autos. ________________________________ Message 4 _____________________________________ Time: 12:23:59 PM PST US From: Tim Willis Subject: Re: Pietenpol-List: lowell frank's stats-- Roman's Drawings BTW, Roman's Riblett airfoil drawings are rib plots, which really help. I believe that I recall that Roman took pains to make sure that his drawing dimensions are true to the numerical plots. In other words, his drawings are not just a cheap copy job, but a blueprint quality copy. I have only seen the 613.5 drawing myself, but was glad to get it. This is an unpaid testimonial. FYI, I believe the full names of the two Riblett airfoils are the Riblett GA30A612 and the Riblett GA30u613.5, but I have been told that Riblett may have dropped the letters in the middle of his former nomenclature. A likely "almost right" explanation follows: -- The "GA" stands for "general aviation," -- the "30" stands for how far back on the chord (as a percent of the chord, from the LE) the thickest part of the camber fits, and --the "12" or "13.5" is the maximum thickness of the camber, expressed as a percent thickness of the chord. Laid against a Piet rib, the Riblett 13.5 is about an inch taller in the upper surface and an inch lower in the lower surface. The Riblett nose is much more rounded until after the first 30 percent of the chord. There is a VERY slight undercamber on the lower airfoil surface, like the Piet, but only toward the tail of the airfoil. Overall, the airfoil looks quite a bit like a Clark Y that is taller (thicker). However, the Riblett's lower surface drops lower below the chordline than the Clark Y in the first third of the chord, and thus looks more like a NACA 2412 or 4412 below. It's more laminar below than a Piet or Clark Y. The spars can be at least two inches taller than the Piet's, and thus both heavier and stronger. This might be a good application for a built-up spar, like "Peter's Piet" Down Under. These numbers and comparisons are all somewhat inexact, but good overall impressions. Tim in central TX -----Original Message----- >From: Roman Bukolt >Sent: Apr 20, 2007 3:19 PM >To: pietenpol-list@matronics.com >Subject: Re: Pietenpol-List: lowell frank's stats > > >FYI >I have the full size drawings of both the Riblett 612 and the Riblett 613.5 >available. They are $10.00 each including shipping and handling. >BTW 24 Piet people so far have ordered the 612 and two ordered both the 612 >anf the 613.5. > >Roman Bukolt (Not Roman Gukolt) >6505 Urich Terr. >Madison, Wi. 53719 ________________________________ Message 5 _____________________________________ Time: 03:03:16 PM PST US Subject: RE: Pietenpol-List: GN-1 Roll call From: Harvey Rule GN-1 C-IOVC Ottawa,Ontario,Canada Finished in 2006 Franklin 80 hp 2hrs.flight time so far Single seat;front seat used for battery Old style step and flop door on center section wing. ________________________________ From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Mike King Sent: April 21, 2007 3:02 PM Subject: Re: Pietenpol-List: GN-1 Roll call Mike King GN-1 77MK Ponder, Texas (Dallas/Ft. Worth area) Built in 1985 A-80 Cont. Several hundred hours of flying time Dual controls / instruments ELT, radio antenna, digital tach, slide bar to step into rear cockpit (will install smoke system and gap seals in 2007) ----- Original Message ----- From: Ryan Michalkiewicz To: pietenpol-list@matronics.com Sent: Saturday, April 21, 2007 1:18 PM Subject: Pietenpol-List: GN-1 Roll call I am just wondering how may Grega fliers are on the list. What stage is your project in? What fuselage? What engine? Any other mods? Myself, I have ordered "Complete" plans from a "guy" in Oregon. We will see what arrives at my door if anything. I have been practicing my welds, I was getting a little worried, but I am feeling better about them. I have a Corvair core, ready for tear down. Thanks all, -Ryan ________________________________ Ahhh...imagining that irresistible "new car" smell? Check out new cars at Yahoo! Autos. href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.mat r onics.com/Navigator?Pietenpol-List href="http://forums.matronics.com">http://forums.matronics.com ________________________________ Message 6 _____________________________________ Time: 06:08:31 PM PST US Subject: Pietenpol-List: Re: GN-1 Roll call From: "skellytownflyer" Got DJ Vegh's GN-1 project-working on wings now-close to ready to cover.fuselage about same.finishing up a lot of details that take 10 times the amount of time you think they should as allways but it is fun.Raymond Hanover.Skellytown TX Read this topic online here: http://forums.matronics.com/viewtopic.php?p=108380#108380 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pietenpol-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pietenpol-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/pietenpol-list Browse Digests http://www.matronics.com/digest/pietenpol-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.