---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Mon 04/09/07: 16 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:55 AM - Re: Re: Tachometer - where do you find one (hvandervoo@aol.com) 2. 06:23 AM - mag powered tach for Model A (Douwe Blumberg) 3. 06:32 AM - Re: mag powered tach for Model A () 4. 06:59 AM - Re:Re: Clarification: Rib measurement (Ryan Michalkiewicz) 5. 09:10 AM - Re: Re:Re: Clarification: Rib measurement (Dick Navratil) 6. 10:06 AM - Re: Re:Re: Clarification: Rib measurement (Roman Bukolt) 7. 10:25 AM - Re: Re:Re: Clarification: Rib measurement (Max Hegler) 8. 11:42 AM - Brodhead 2007 (Bill Church) 9. 12:37 PM - paint information (KMHeide, BA, CPO, FAAOP) 10. 12:57 PM - Re: Rib Drawing errors? (Clif Dawson) 11. 01:16 PM - Re: Rib Drawing errors? (Clif Dawson) 12. 01:47 PM - Re: securing the LE of the Pietenpol stabilizer (Clif Dawson) 13. 06:00 PM - Re: Tachometer - where do you find one (Tom Stinemetze) 14. 06:16 PM - Re: Tachometer - where do you find one (DJ Vegh) 15. 06:55 PM - Re: Re:Re: Clarification: Rib measurement (Dick Navratil) 16. 08:55 PM - Re: Re: Clarification: Rib measurement (Rick Holland) ________________________________ Message 1 _____________________________________ Time: 05:55:59 AM PST US Subject: Re: Pietenpol-List: Re: Tachometer - where do you find one From: hvandervoo@aol.com Tom, I ended up, after trying a number of different types, with the Stewart Warner analog tach that WW recommends Stewart Warner part no: 82636 & Stewart Warner sender 82646 I scuffed the chrome bezel with scotch-brite and painted it mat black. I then mounted it from the rear in to the panel secured with a home made nut plate. The automotive gauge is 3 3/8 diameter, much large than the 3 1/8 Aviation gauges. But by using the recessed rim and mounting it from the back the difference is less than 1/8" and hardly noticeable. Hans -----Original Message----- From: tstinemetze@cox.net Sent: Sat, 7 Apr 2007 10:04 PM Subject: Pietenpol-List: Re: Tachometer - where do you find one Listers: I am getting very close to having a panel to start designing my instrument layout. Consequently I need to find the sizes and spacing requirements for the final layout. I am having a little trouble trying to figure out where to find a tachometer that looks right for a Pietenpol but still operates electrically. I remember seeing one on DJ's website that has a max RPM of 3500 and receives it's signals from a tooth counter on the flywheel. (I'm also planning to use a Corvair engine.) The ones William Wynne recommends are digital which I suspect would get me laughed off the list. Any recommendations would be greatly appreciated. Tom Stinemetze The Airplane Nut ____ | ____ \8/ / \ ________________________________________________________________________ ________________________________ Message 2 _____________________________________ Time: 06:23:38 AM PST US From: "Douwe Blumberg" Subject: Pietenpol-List: mag powered tach for Model A I am using a Westach tach which runs off a lead to the mag. Larry Williams has been using one for a long time with no problems, and mine has worked well on the test stand. There theoretically is the potential of a short causing problems in the mag. Tony Bingilis recommends installing a small fuse between the mag and tach just in case. This is what Larry did, and I will do once it's in the plane. You can find them in the ACS catalog. Douwe ________________________________ Message 3 _____________________________________ Time: 06:32:59 AM PST US Subject: RE: Pietenpol-List: mag powered tach for Model A From: That same tach has a small wire inside that if you have the wrong rpm and you cut that wire it will give you the proper rpm.I believe it cuts the rpm in half when you cut the wire.It does come with a fuse.I haave the same one.I use it in my N3 Pup.My Piet uses another type of tach.Can't remember at this time what type that is. ________________________________ I am using a Westach tach which runs off a lead to the mag. Larry Williams has been using one for a long time with no problems, and mine has worked well on the test stand. ________________________________ Message 4 _____________________________________ Time: 06:59:35 AM PST US Subject: Re:Re: Pietenpol-List: Clarification: Rib measurement From: "Ryan Michalkiewicz" I have read about it and I am interested. Will there be a flying Riblett at SNF? ------Original Message------ From: Rick Holland Subject: Re: Pietenpol-List: Clarification: Rib measurement Sorry to answer your question with another question but have you read the archive threads and BPA newsletter article concerning the Riblett 612 airfoil for the Pietenpol? If I was were you are in the building process I would order the excellent full size 612 airfoil plans from Roman ($10) or get the coordinates from Bill Rewey for a couple bucks. Just an interesting alternative. Rick On 4/8/07, walt evans wrote: > > When I recieved my plans , I got a full sized rib print. This is the one > that I put on the rib board, and made the ribs to. > My Piet flies great with this wing. > Didn't you guys get this?? > And as far as the metal fittings,,,just make them 1/4" longer , to stick > out of the layers of fabric, so you can hook a fitting to it. > Walt Evans > NX140DL > "No one ever learned anything by talking" > > ----- Original Message ----- > *From:* Ryan Michalkiewicz > *To:* pietenpol-list@matronics.com > *Sent:* Sunday, April 08, 2007 4:13 PM > *Subject:* Pietenpol-List: Clarification: Rib measurement > > I have been through the archives and I only find slight reference to > my problem. I have an "out of contour" (called a "kink" in the archive) > condition in the upper of my airfoil, one forward and one aft. Please tell > me you have seen this before. > > Thank you again, > Ryan > > *Ryan Michalkiewicz * wrote: > > Group, I am plotting out my jig from the plans and there are a > few areas that just can't be correct. Is there a revision sheet that I may > be missing. Has anyone else had these same problems? I have been stuck on > this for some time and need the help moving forward. I have checked and > rechecked several times already. Any insight would be > ------------------------------ > Bored stiff? Loosen up... > Download and play hundreds of games for freeon Yahoo! Games. > > * > > href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List > href="http://forums.matronics.com">http://forums.matronics.com > * > > * > > > * > > -- Rick Holland "Logic is a wreath of pretty flowers, that smell bad" ________________________________ Message 5 _____________________________________ Time: 09:10:52 AM PST US From: "Dick Navratil" Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement Ryan I don't know about the 612, but I will be bringing along a NACA 4412 rib jig and I have a overlay for the regular Piet rib. The 4412 is used on the Champ and also has been used on the Piet. It, like the 612 has better stall habits and is a bit faster thean the Piet airfoil. I will have cap strips there and if you want, you can build a rib or 2. Dick N. ----- Original Message ----- From: "Ryan Michalkiewicz" Sent: Monday, April 09, 2007 8:59 AM Subject: Re:Re: Pietenpol-List: Clarification: Rib measurement I have read about it and I am interested. Will there be a flying Riblett at SNF? ------Original Message------ From: Rick Holland Subject: Re: Pietenpol-List: Clarification: Rib measurement Sorry to answer your question with another question but have you read the archive threads and BPA newsletter article concerning the Riblett 612 airfoil for the Pietenpol? If I was were you are in the building process I would order the excellent full size 612 airfoil plans from Roman ($10) or get the coordinates from Bill Rewey for a couple bucks. Just an interesting alternative. Rick On 4/8/07, walt evans wrote: > > When I recieved my plans , I got a full sized rib print. This is the one > that I put on the rib board, and made the ribs to. > My Piet flies great with this wing. > Didn't you guys get this?? > And as far as the metal fittings,,,just make them 1/4" longer , to stick > out of the layers of fabric, so you can hook a fitting to it. > Walt Evans > NX140DL > "No one ever learned anything by talking" > > ----- Original Message ----- > *From:* Ryan Michalkiewicz > *To:* pietenpol-list@matronics.com > *Sent:* Sunday, April 08, 2007 4:13 PM > *Subject:* Pietenpol-List: Clarification: Rib measurement > > I have been through the archives and I only find slight reference to > my problem. I have an "out of contour" (called a "kink" in the archive) > condition in the upper of my airfoil, one forward and one aft. Please tell > me you have seen this before. > > Thank you again, > Ryan > > *Ryan Michalkiewicz * wrote: > > Group, I am plotting out my jig from the plans and there are a > few areas that just can't be correct. Is there a revision sheet that I may > be missing. Has anyone else had these same problems? I have been stuck on > this for some time and need the help moving forward. I have checked and > rechecked several times already. Any insight would be > ------------------------------ > Bored stiff? > Loosen up... > Download and play hundreds of games for > freeon Yahoo! > Games. > > * > > href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List > href="http://forums.matronics.com">http://forums.matronics.com > * > > * > > > * > > -- Rick Holland "Logic is a wreath of pretty flowers, that smell bad" ________________________________ Message 6 _____________________________________ Time: 10:06:34 AM PST US From: "Roman Bukolt" Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement FYI I believe the Kitfox uses the the Riblett 30A- 612 airfoil Roman Bukolt NX20795 ----- Original Message ----- From: "Dick Navratil" Sent: Monday, April 09, 2007 11:10 AM Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement > > > Ryan > I don't know about the 612, but I will be bringing along a NACA 4412 rib > jig and I have a overlay for the regular Piet rib. The 4412 is used on > the Champ and also has been used on the Piet. It, like the 612 has better > stall habits and is a bit faster thean the Piet airfoil. I will have cap > strips there and if you want, you can build a rib or 2. > Dick N. > ----- Original Message ----- > From: "Ryan Michalkiewicz" > To: > Sent: Monday, April 09, 2007 8:59 AM > Subject: Re:Re: Pietenpol-List: Clarification: Rib measurement > > > > > I have read about it and I am interested. Will there be a flying Riblett > at SNF? > > ------Original Message------ > From: Rick Holland > To: > Date: Sun, Apr 8, 2007 08:31 PM > Subject: Re: Pietenpol-List: Clarification: Rib measurement > > Sorry to answer your question with another question but have you read the > archive threads and BPA newsletter article concerning the Riblett 612 > airfoil for the Pietenpol? If I was were you are in the building process I > would order the excellent full size 612 airfoil plans from Roman ($10) or > get the coordinates from Bill Rewey for a couple bucks. Just an > interesting > alternative. > > Rick > > On 4/8/07, walt evans wrote: >> >> When I recieved my plans , I got a full sized rib print. This is the one >> that I put on the rib board, and made the ribs to. >> My Piet flies great with this wing. >> Didn't you guys get this?? >> And as far as the metal fittings,,,just make them 1/4" longer , to stick >> out of the layers of fabric, so you can hook a fitting to it. >> Walt Evans >> NX140DL >> "No one ever learned anything by talking" >> >> ----- Original Message ----- >> *From:* Ryan Michalkiewicz >> *To:* pietenpol-list@matronics.com >> *Sent:* Sunday, April 08, 2007 4:13 PM >> *Subject:* Pietenpol-List: Clarification: Rib measurement >> >> I have been through the archives and I only find slight reference >> to >> my problem. I have an "out of contour" (called a "kink" in the archive) >> condition in the upper of my airfoil, one forward and one aft. Please >> tell >> me you have seen this before. >> >> Thank you again, >> Ryan >> >> *Ryan Michalkiewicz * wrote: >> >> Group, I am plotting out my jig from the plans and there are a >> few areas that just can't be correct. Is there a revision sheet that I >> may >> be missing. Has anyone else had these same problems? I have been stuck on >> this for some time and need the help moving forward. I have checked and >> rechecked several times already. Any insight would be >> ------------------------------ >> Bored stiff? >> Loosen up... >> Download and play hundreds of games for >> freeon Yahoo! >> Games. >> >> * >> >> href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List >> href="http://forums.matronics.com">http://forums.matronics.com >> * >> >> * >> >> >> * >> >> > > > -- > Rick Holland > > "Logic is a wreath of pretty flowers, that smell bad" > > > ________________________________ Message 7 _____________________________________ Time: 10:25:52 AM PST US From: "Max Hegler" Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement Where will you be? I will be at SNF Tuesday through Friday and would like to see the 612 and anything else concerning the Pietenpols. Thanks! Max ----- Original Message ----- From: "Dick Navratil" Sent: Monday, April 09, 2007 11:10 AM Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement > > > Ryan > I don't know about the 612, but I will be bringing along a NACA 4412 rib > jig and I have a overlay for the regular Piet rib. The 4412 is used on > the Champ and also has been used on the Piet. It, like the 612 has better > stall habits and is a bit faster thean the Piet airfoil. I will have cap > strips there and if you want, you can build a rib or 2. > Dick N. > ----- Original Message ----- > From: "Ryan Michalkiewicz" > To: > Sent: Monday, April 09, 2007 8:59 AM > Subject: Re:Re: Pietenpol-List: Clarification: Rib measurement > > > > > I have read about it and I am interested. Will there be a flying Riblett > at SNF? > > ------Original Message------ > From: Rick Holland > To: > Date: Sun, Apr 8, 2007 08:31 PM > Subject: Re: Pietenpol-List: Clarification: Rib measurement > > Sorry to answer your question with another question but have you read the > archive threads and BPA newsletter article concerning the Riblett 612 > airfoil for the Pietenpol? If I was were you are in the building process I > would order the excellent full size 612 airfoil plans from Roman ($10) or > get the coordinates from Bill Rewey for a couple bucks. Just an > interesting > alternative. > > Rick > > On 4/8/07, walt evans wrote: >> >> When I recieved my plans , I got a full sized rib print. This is the one >> that I put on the rib board, and made the ribs to. >> My Piet flies great with this wing. >> Didn't you guys get this?? >> And as far as the metal fittings,,,just make them 1/4" longer , to stick >> out of the layers of fabric, so you can hook a fitting to it. >> Walt Evans >> NX140DL >> "No one ever learned anything by talking" >> >> ----- Original Message ----- >> *From:* Ryan Michalkiewicz >> *To:* pietenpol-list@matronics.com >> *Sent:* Sunday, April 08, 2007 4:13 PM >> *Subject:* Pietenpol-List: Clarification: Rib measurement >> >> I have been through the archives and I only find slight reference >> to >> my problem. I have an "out of contour" (called a "kink" in the archive) >> condition in the upper of my airfoil, one forward and one aft. Please >> tell >> me you have seen this before. >> >> Thank you again, >> Ryan >> >> *Ryan Michalkiewicz * wrote: >> >> Group, I am plotting out my jig from the plans and there are a >> few areas that just can't be correct. Is there a revision sheet that I >> may >> be missing. Has anyone else had these same problems? I have been stuck on >> this for some time and need the help moving forward. I have checked and >> rechecked several times already. Any insight would be >> ------------------------------ >> Bored stiff? >> Loosen up... >> Download and play hundreds of games for >> freeon Yahoo! >> Games. >> >> * >> >> href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List >> href="http://forums.matronics.com">http://forums.matronics.com >> * >> >> * >> >> >> * >> >> > > > -- > Rick Holland > > "Logic is a wreath of pretty flowers, that smell bad" > > > ________________________________ Message 8 _____________________________________ Time: 11:42:34 AM PST US Subject: Pietenpol-List: Brodhead 2007 From: "Bill Church" Looking ahead a few months... As I just read in the most recent BPA newsletter, at this year's Pietenpol Reunion (July 20, 21, 22) the BPA News is planning to sponsor forums all day on Saturday. The last couple of years have not had much in the way of forums - but this year looks like there should be a good selection. Here's a link to the newsletter website: http://pietenpols.tripod.com/id1.html Bill C. ________________________________ Message 9 _____________________________________ Time: 12:37:37 PM PST US From: "KMHeide, BA, CPO, FAAOP" Subject: Pietenpol-List: paint information Ultraviolet Absorption of Latex Paints by Kirk Huizenga For many years there has been discussions on the Pietenpol mail list as to the suitability of exterior latex paint as a system for covering an aircraft. A number of builders have completed their projects and have used latex paint to cover the fabric with claimed success. One issue that had not been tested is the ability of latex paint to protect Dacron fabric from damaging UV light. In standard systems, there is a barrier layer of paint applied prior to color coats. In the Poly-fiber system this is called Poly-spray. In the past, builders that have used latex paint to cover their fabric have sealed the fabric with black latex paint with the idea that black paint would absorb the most visible light and, hopefully, UV light. This, in turn, would protect the fabric from degradation. I have considered using latex paint on my Pietenpol rebuild, but wanted to be certain that it would, in-fact protect the fabric from UV degradation. There are builder that have had latex covered fabric for over 10 years without incident, but better safe than sorry. One should not assume that because visible light is being blocked that UV light is also being blocked. Methodology: I contacted a friend of mine, Dr. Tom Varberg, a Professor of Chemistry at Macalester College in St Paul, MN and asked him about testing the paints. Tom agreed to help me in the testing by using a Beckman DU7400 Spectrometer. The spectrometer can record Transmittance, the amount of visible and ultraviolet light lost (or conversely, absorbed) by a material. Transmittance is the ratio of radiant power (p/o ) that makes it through the substance (paint) to the radiant power (P ) sent into the substance. Transmittance can then be converted to Absorption (A) with the formula. Tom also supplied me with a small disk of quartz to use as a base for testing the paint at an appropriate thickness - similar to that expected when covering fabric. Quartz does not absorb or restrict UV light in the wavelengths we were PO P T = PO P A = −logT Ultraviolet Absorption of Latex Paints by Kirk Huizengatesting (400-200nm) and therefore would not introduce error in the absorption readings. I applied 4 different paints 1. Kilz Latex White 2. Glidden Exterior Latex-Wooland Green 3. Behr Exterior Flat Black 4. Poly-Fiber Poly-Brush) to the quartz with a small brush. After shooting a blank to calibrate the spectrometer, one of the painted areas on the disk was placed between the light source and the sensor. The light source flashes on (2 seconds for our test) and the sensor picks-up any energy that makes it through the paint. The DU7400 gives a graphic representation of Absorbance at each wavelength (in nanometers). In the charts below, I averaged the Absorption of every block of 10 nanometer since there were 600 data points for each sample (from 800 to 200 nanometers). As a curiosity, I also prepared some lightweight Poly- Fiber fabric generously given to me by Gil Leiter of St Paul, MN and tested it. I heat shrunk the fabric and tested it with and without paint and Poly-Brush (generously given by Pietenpoler, Robert Haines). The results are shown in Chart #2. Limitations: The Beckman DU7400 Spectrometer is limited to an absorption of 4.5 (but we will consider that to be sufficient at T=.0031%) The DU7400 is likely to show erroneous data or noise when at either extreme of its measurement (0 or 4.5). Some data for specific wavelengths may not be accurate, but a trend is obvious The testing we did does not account for reflection. Any light reflected by the paint would show up as being absorbed. This doesnt really change the applicability of the test results, but does raise a question of what color paint is the best to use on sealing and protecting the fabric. This is only a test of the UV blocking ability of latex (Continued on page 6) F or many years there has been discussions on the Pietenpol mail list as to the suitability of exterior latex paint as a system for covering an aircraft. A number of builders have completed their projects and have used latex paint to cover the fabric with claimed success. One issue that had not been tested is the ability of latex paint to protect Dacron fabric from damaging UV light. In standard systems, there is a barrier layer of paint applied prior to color coats. In the Poly-fiber system this is called Poly-spray. In the past, builders that have used latex paint to cover their fabric have sealed the fabric with black latex paint with the idea that black paint would absorb the most visible light and, hopefully, UV light. This, in turn, would protect the fabric from degradation. I have considered using latex paint on my Pietenpol rebuild, but wanted to be certain that it would, in-fact protect the fabric from UV degradation. There are builder that have had latex covered fabric for over 10 years without incident, but better safe than sorry. One should not assume that because visible light is being blocked that UV light is also being blocked. Methodology: I contacted a friend of mine, Dr. Tom Varberg, a Professor of Chemistry at Macalester College in St Paul, MN and asked him about testing the paints. Tom agreed to help me in the testing by using a Beckman DU7400 Spectrometer. The spectrometer can record Transmittance, the amount of visible and ultraviolet light lost (or conversely, absorbed) by a material. Transmittance is the ratio of radiant power that makes it through the substance (paint) to the radiant power sent into the substance. Transmittance can then be converted to Absorption with the formula. Tom also supplied me with a small disk of quartz to use as a base for testing the paint at an appropriate thickness - similar to that expected when covering fabric. Quartz does not absorb or restrict UV light in the wavelengths we were Ultraviolet paints. It does not deal with any other issues of using non-certified methods of covering and painting ones experimental aircraft like longevity, ability to seal the weave, adhesion, or flexibility/brittleness of latex paint. The Poly-Spray was tested with two layers one on the front of the disk and one on the back. We found that this introduced some errors. Some of the energy that makes it through the first layer of paint gets bounced around between the two layers and gives odd readings. Conclusions Latex paint can sufficiently blocks UV radiation and therefore protect Dacron fabric. Color does not seem to matter as far as level of absorption differences are extremely minor (in the range of thousands of a percent) This is a matter open for discussion, but the practice of using black paint as the base/sealing coat on fabric to block UV light may not be the best practice. White, in theory, would be a better paint for that. White paint has a high amount of Titanium Dioxide, which is highly reflective. Black paint, on the other hand, gets its color from Carbon Black primarily. Black paints have much less reflectivity and more absorption of light. Now, as I mentioned above, color does not seem to matter much in terms of protecting the fabric, but paint that is more reflective should last longer than paint that is more absorbing of light. It is not an issue of black or white being better at protecting the fabric, but rather the longevity and protection of the paint itself from breakdown. Brand of paint shouldnt make much difference in terms of UV protection, but could make a difference in durability and longevity of your paint job. The above courtesy of http://www.eaa54.org 54NewsletterMarch2003.pdf --------------------------------- Be a PS3 game guru. Get your game face on with the latest PS3 news and previews at Yahoo! Games. ________________________________ Message 10 ____________________________________ Time: 12:57:50 PM PST US From: Clif Dawson Subject: Re: Pietenpol-List: Rib Drawing errors? Just make sure you have room for the spars. :-) Clif Thank you for the quick response. I figured I could do something like that. I just wanted to be sure I wasn't something I did. -Ryan ________________________________ Message 11 ____________________________________ Time: 01:16:38 PM PST US From: Clif Dawson Subject: Re: Pietenpol-List: Rib Drawing errors? I believe that was in the later Sky Scout article in the 1933 issue. There are some changes in that. Clif > > I have seen at least one corrected plot on a "Glider & Flying" reprint, > but cannot lay my hands on it right now. Perhaps someone else can point > out the one or two errors in the upper surface of the airfoil. I believe > the full scale drawing corrects this/these. > > Tim in central TX > ________________________________ Message 12 ____________________________________ Time: 01:47:32 PM PST US From: Clif Dawson Subject: Re: Pietenpol-List: securing the LE of the Pietenpol stabilizer Drilled head bolts and safety wire. http://www.wicksaircraft.com/catalog/product_cat.php/subid=850/index.html Clif > What keeps this bolt from backing out from continued vibration, over time, > from either a Tinneman nut or a "Home Depot speednut"? > > Do you put a lock or star washer on the bolt (at the top of the HStab), > use Loc-tite on its threads, or what? > > Tim in central TX > ________________________________ Message 13 ____________________________________ Time: 06:00:06 PM PST US From: "Tom Stinemetze" Subject: Re: Pietenpol-List: Tachometer - where do you find one < It's a Corvar, right? Why not just visit your local auto parts shop and pick out a tach? Or snoop around online and track down a spiffy vintage reproduction tach? There are tons of them out there in a huge variety of sizes and styles. Connects to power, ground and coil. At last, that's how I connect them in my Corvairs...cars that is. > Yes, I know, tachs are a dime a dozen, but it's pretty difficult to find an auto tach at someplace like Autozone which registers less than 8-10 thou. DJ Veigh e-mailed me with a suggestion to Google "Datcon" which is what he used on his Corvair. I tried that simple solution and found a raft of usable tachs, the majority of which use some form of electric signal. I really appreciate the ease of installation of an electric wire over a mechanical linkage. Tom Stinemetze ____ | ____ \8/ / \ ________________________________ Message 14 ____________________________________ Time: 06:16:26 PM PST US From: "DJ Vegh" Subject: Re: Pietenpol-List: Tachometer - where do you find one MessageA few guys experienced some issues with "standard" tachs when hooking up to coil. Myself included. I tried 2 tachs before the Datcon with tooth counter and both of them were erratic and way off. Tried all the normal methods of getting it to steady to no avail. Only the Grand Rapids EIS ach and my tooth counter worked with any sort of accuracy. DJ ----- Original Message ----- From: Tom Stinemetze To: pietenpol-list@matronics.com Sent: Monday, April 09, 2007 5:59 PM Subject: Re: Pietenpol-List: Tachometer - where do you find one < It's a Corvar, right? Why not just visit your local auto parts shop and pick out a tach? Or snoop around online and track down a spiffy vintage reproduction tach? There are tons of them out there in a huge variety of sizes and styles. Connects to power, ground and coil. At last, that's how I connect them in my Corvairs...cars that is. >Yes, I know, tachs are a dime a dozen, but it's pretty difficult to find an auto tach at someplace like Autozone which registers less than 8-10 thou. DJ Veigh e-mailed me with a suggestion to Google "Datcon" which is what he used on his Corvair. I tried that simple solution and found a raft of usable tachs, the majority of which use some form of electric signal. I really appreciate the ease of installation of an electric wire over a mechanical linkage. Tom Stinemetze ____ | ____ \8/ / \ ________________________________ Message 15 ____________________________________ Time: 06:55:41 PM PST US From: "Dick Navratil" Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement I will be working in the Wood Workshop. It is up near the main entry. For anyne else who wants to stop by and help out we will be assemblying a Volmer VJ 22 fuselage this year. If anyone wants some fast progress on a Piet project next near, let us know. We can fit in another project for the future. The wood workshop is kind of Pietenpol central at the show. Dick N. ----- Original Message ----- From: "Max Hegler" Sent: Monday, April 09, 2007 12:24 PM Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement > > Where will you be? I will be at SNF Tuesday through Friday and would like > to see the 612 and anything else concerning the Pietenpols. > > Thanks! > Max > > ----- Original Message ----- > From: "Dick Navratil" > To: > Sent: Monday, April 09, 2007 11:10 AM > Subject: Re: Re:Re: Pietenpol-List: Clarification: Rib measurement > > >> >> >> Ryan >> I don't know about the 612, but I will be bringing along a NACA 4412 rib >> jig and I have a overlay for the regular Piet rib. The 4412 is used on >> the Champ and also has been used on the Piet. It, like the 612 has >> better stall habits and is a bit faster thean the Piet airfoil. I will >> have cap strips there and if you want, you can build a rib or 2. >> Dick N. >> ----- Original Message ----- >> From: "Ryan Michalkiewicz" >> To: >> Sent: Monday, April 09, 2007 8:59 AM >> Subject: Re:Re: Pietenpol-List: Clarification: Rib measurement >> >> >> >> >> I have read about it and I am interested. Will there be a flying Riblett >> at SNF? >> >> ------Original Message------ >> From: Rick Holland >> To: >> Date: Sun, Apr 8, 2007 08:31 PM >> Subject: Re: Pietenpol-List: Clarification: Rib measurement >> >> Sorry to answer your question with another question but have you read the >> archive threads and BPA newsletter article concerning the Riblett 612 >> airfoil for the Pietenpol? If I was were you are in the building process >> I >> would order the excellent full size 612 airfoil plans from Roman ($10) or >> get the coordinates from Bill Rewey for a couple bucks. Just an >> interesting >> alternative. >> >> Rick >> >> On 4/8/07, walt evans wrote: >>> >>> When I recieved my plans , I got a full sized rib print. This is the >>> one >>> that I put on the rib board, and made the ribs to. >>> My Piet flies great with this wing. >>> Didn't you guys get this?? >>> And as far as the metal fittings,,,just make them 1/4" longer , to stick >>> out of the layers of fabric, so you can hook a fitting to it. >>> Walt Evans >>> NX140DL >>> "No one ever learned anything by talking" >>> >>> ----- Original Message ----- >>> *From:* Ryan Michalkiewicz >>> *To:* pietenpol-list@matronics.com >>> *Sent:* Sunday, April 08, 2007 4:13 PM >>> *Subject:* Pietenpol-List: Clarification: Rib measurement >>> >>> I have been through the archives and I only find slight reference >>> to >>> my problem. I have an "out of contour" (called a "kink" in the archive) >>> condition in the upper of my airfoil, one forward and one aft. Please >>> tell >>> me you have seen this before. >>> >>> Thank you again, >>> Ryan >>> >>> *Ryan Michalkiewicz * wrote: >>> >>> Group, I am plotting out my jig from the plans and there are a >>> few areas that just can't be correct. Is there a revision sheet that I >>> may >>> be missing. Has anyone else had these same problems? I have been stuck >>> on >>> this for some time and need the help moving forward. I have checked and >>> rechecked several times already. Any insight would be >>> ------------------------------ >>> Bored stiff? >>> Loosen up... >>> Download and play hundreds of games for >>> freeon Yahoo! >>> Games. >>> >>> * >>> >>> href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List >>> href="http://forums.matronics.com">http://forums.matronics.com >>> * >>> >>> * >>> >>> >>> * >>> >>> >> >> >> -- >> Rick Holland >> >> "Logic is a wreath of pretty flowers, that smell bad" >> >> >> >> >> >> >> >> >> >> >> > > > ________________________________ Message 16 ____________________________________ Time: 08:55:08 PM PST US From: "Rick Holland" Subject: Re: Re: Pietenpol-List: Clarification: Rib measurement One other thing about the 612 drawing, it assumes 3/4" wide spars as most people use now days. Using the original plans I, like many people, built the ribs with 1" gaps and then added 1/8" ply spacers on both sides when assembling. Rick On 4/9/07, Ryan Michalkiewicz wrote: > > mskybolt@yahoo.com> > > I have read about it and I am interested. Will there be a flying Riblett > at SNF? > > ------Original Message------ > From: Rick Holland > To: > Date: Sun, Apr 8, 2007 08:31 PM > Subject: Re: Pietenpol-List: Clarification: Rib measurement > > Sorry to answer your question with another question but have you read the > archive threads and BPA newsletter article concerning the Riblett 612 > airfoil for the Pietenpol? If I was were you are in the building process I > would order the excellent full size 612 airfoil plans from Roman ($10) or > get the coordinates from Bill Rewey for a couple bucks. Just an > interesting > alternative. > > Rick > > On 4/8/07, walt evans wrote: > > > > When I recieved my plans , I got a full sized rib print. This is the > one > > that I put on the rib board, and made the ribs to. > > My Piet flies great with this wing. > > Didn't you guys get this?? > > And as far as the metal fittings,,,just make them 1/4" longer , to stick > > out of the layers of fabric, so you can hook a fitting to it. > > Walt Evans > > NX140DL > > "No one ever learned anything by talking" > > > > ----- Original Message ----- > > *From:* Ryan Michalkiewicz > > *To:* pietenpol-list@matronics.com > > *Sent:* Sunday, April 08, 2007 4:13 PM > > *Subject:* Pietenpol-List: Clarification: Rib measurement > > > > I have been through the archives and I only find slight reference > to > > my problem. I have an "out of contour" (called a "kink" in the archive) > > condition in the upper of my airfoil, one forward and one aft. Please > tell > > me you have seen this before. > > > > Thank you again, > > Ryan > > > > *Ryan Michalkiewicz * wrote: > > > > Group, I am plotting out my jig from the plans and there are a > > few areas that just can't be correct. Is there a revision sheet that I > may > > be missing. Has anyone else had these same problems? I have been stuck > on > > this for some time and need the help moving forward. I have checked and > > rechecked several times already. Any insight would be > > ------------------------------ > > Bored stiff? Loosen > up... > > Download and play hundreds of games for free< > http://us.rd.yahoo.com/evt=49935/*http://games.yahoo.com>on Yahoo! Games. > > > > * > > > > href="http://www.matronics.com/Navigator?Pietenpol-List"> > http://www.matronics.com/Navigator?Pietenpol-List > > href="http://forums.matronics.com">http://forums.matronics.com > > * > > > > * > > > > > > * > > > > > > > -- > Rick Holland > > "Logic is a wreath of pretty flowers, that smell bad" > > -- Rick Holland "Logic is a wreath of pretty flowers, that smell bad" ------------------------------------------------------------------------------------- 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.