Pietenpol-List Digest Archive

Mon 07/14/14


Total Messages Posted: 26



Today's Message Index:
----------------------
 
     1. 04:40 AM - Bratfest IV (Jack)
     2. 05:38 AM - fly-ins (Douwe Blumberg)
     3. 05:44 AM - the cover of Contact! Magazine (taildrags)
     4. 06:56 AM - Re: Brodhead rigging project - 2014 (DonkDoug)
     5. 07:40 AM - Re: the cover of Contact! Magazine (dog67@aol.com)
     6. 07:43 AM - Kit from Aircraft Spruce (Pocono John)
     7. 07:48 AM - Re: Brodhead rigging project - 2014 (William Wynne)
     8. 09:33 AM - Re: fly-ins (gcardinal@comcast.net)
     9. 11:08 AM - Re: fly-ins (woodflier)
    10. 11:35 AM - Corvair College (wheelharp)
    11. 11:56 AM - Re: Brodhead rigging project - 2014 (DonkDoug)
    12. 12:26 PM - Ooooops - well we all make misteasks..... (aerocarjake)
    13. 12:41 PM - Re: Ooooops - well we all make misteasks..... (Gary Boothe)
    14. 01:04 PM - Re: Ooooops - well we all make misteasks..... (Cuy, Michael D. (GRC-LME0)[Vantage Partners, LLC])
    15. 02:32 PM - Re: Corvair College (Mike McGowan)
    16. 02:50 PM - Re: Corvair College (William Wynne)
    17. 03:37 PM - Re: Ooooops - well we all make misteasks..... (Steven Dortch)
    18. 04:15 PM - Re: Brodhead rigging project - 2014 (William Wynne)
    19. 04:26 PM - Re: fly-ins (Robert Bush)
    20. 05:26 PM - Re: Re: Brodhead rigging project - 2014 (John Franklin)
    21. 05:33 PM - Re: Kit from Aircraft Spruce (fastj22)
    22. 06:44 PM - Re: Brodhead rigging project - 2014 (DonkDoug)
    23. 06:49 PM - Re: Re: Brodhead rigging project - 2014 (Robert Gow)
    24. 07:13 PM - Kid's first Pietenpol ride (Boatright, Jeffrey)
    25. 08:01 PM - Speaking of latex drying (Steven Dortch)
    26. 08:28 PM - Re: Speaking of latex drying (Steven Dortch)
 
 
 


Message 1


  • INDEX
  • Back to Main INDEX
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 04:40:17 AM PST US
    Subject: Bratfest IV
    From: Jack <jack@textors.com>
    Piet friends, Susan and I are looking forward to hosting lunch at Brodhead Friday, July 25, 11:30 to 12:30. We will be located on the SE edge of the field by the white fence. http://www.eaa431.org/wp-content/uploads/2013/07/C37-Fly-In-Diagram.jpg We will have a 100 brats, salad, chips and watermelon. When they are gone, the y are gone. Please bring a drink and chair. Look for the 45 foot brown and black Thor diesel. Looking forward to it, let's hope for great weather! We will be arriving Thursday departing Saturday AM. Jack & Susan Five One Five 490-5177 Sent from my iPad Jack Textor


    Message 2


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:38:05 AM PST US
    From: "Douwe Blumberg" <douweblumberg@earthlink.net>
    Subject: fly-ins
    Doing an informal head count, it appears as if Brodhead might be light of planes 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 or two Pavliga's, hopefully Don??? Who am I missing Is Matt flying in? Randy? Douwe


    Message 3


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:44:42 AM PST US
    Subject: the cover of Contact! Magazine
    From: "taildrags" <taildrags@hotmail.com>
    I owe an apology to Jon Apfelbaum, truly. We are on a dive trip out of the country at the moment and I have dozens of emails to catch up on (wi-fi is spotty down here), but I am remiss in not giving Jon the credit for the cover photo on the anniversary edition of the magazine. We knew it would be one of Jon's photos on the cover the minute we saw some of the shots that he took in the photo shoot of Dan's airplane. The photo is one in a series that pilot and photographer took, so if the photo looks familiar, just pull out your 2012 EAA calendar and you'll see a similar photo but the two are different. Our thanks to Jon for making this special issue of the magazine what it is, and definitely something that will be around for many years to come. Perhaps Jon will agree to start working on the cover for the 100th anniversary issue-? There are one or two other of Jon's photos in the magazine, including one of Matt Paxton swinging the hand-carved prop on Dan's airplane. It's raining outside at the moment, but they tell me it doesn't matter if you get wet when you're scuba diving ;o) -------- Oscar Zuniga Medford, OR Air Camper NX41CC &quot;Scout&quot; A75 power Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426630#426630


    Message 4


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:56:11 AM PST US
    Subject: Re: Brodhead rigging project - 2014
    From: "DonkDoug" <douglas.wright@okstate.edu>
    William, I got out my copy of Harry Riblett's GA Airfoils this morning before I went to work and it looks like for a cruise lift coefficient of .55 the angle of attack for his GA30-612 is around one degree positive. Looking at the ordinates for this airfoil and assuming a wing is constructed with the front spar at 12% of the 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 cabane to achieve this one degree positive angle of attack. This assumes that the builder constructs the wing with the ribs butted into the bottom of the spars. Doug Wright Stillwater, OK Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426631#426631


    Message 5


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:40:24 AM PST US
    Subject: Re: the cover of Contact! Magazine
    From: dog67@aol.com
    All good, Oscar ;) Just glad to help out. If anyone is interested - I'm always up for shooting more pictures and woul d love to get more air-to-air shots of Piet's at Brodhead :) I'm just jealous that you are getting to go diving ;) Cheers Jon -----Original Message----- From: taildrags <taildrags@hotmail.com> Sent: Mon, Jul 14, 2014 6:45 am Subject: Pietenpol-List: the cover of Contact! Magazine I owe an apology to Jon Apfelbaum, truly. We are on a dive trip out of the country at the moment and I have dozens of emails to catch up on (wi-fi is spotty down here), but I am remiss in not giving Jon the credit for the cov er photo on the anniversary edition of the magazine. We knew it would be one of Jon's photos on the cover the minute we saw some of the shots that he took in the photo shoot of Dan's airplane. The photo is one in a series that pilot and photographer took, so if the ph oto looks familiar, just pull out your 2012 EAA calendar and you'll see a simil ar photo but the two are different. Our thanks to Jon for making this special issue of the magazine what it is, and definitely something that will be aro und for many years to come. Perhaps Jon will agree to start working on the cov er for the 100th anniversary issue-? There are one or two other of Jon's photos in the magazine, including one o f Matt Paxton swinging the hand-carved prop on Dan's airplane. It's raining outside at the moment, but they tell me it doesn't matter if y ou get wet when you're scuba diving ;o) -------- Oscar Zuniga Medford, OR Air Camper NX41CC &quot;Scout&quot; A75 power Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426630#426630


    Message 6


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:43:08 AM PST US
    Subject: Kit from Aircraft Spruce
    From: "Pocono John" <tinmotion@yahoo.com>
    Did anyone buy it? Thumbs up or down? Buy in stages? -------- John Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426634#426634


    Message 7


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:48:07 AM PST US
    Subject: Re: Brodhead rigging project - 2014
    From: "William Wynne" <WilliamTCA@aol.com>
    Ray, I will be glad to submit the rigging data to the newsletter, and one of the guys can also put it here on this list. When Ryan and I did the CG work several years ago, it all went directly into the newsletter for everyone to use. This list latter played a role in getting new builders to understand the CG info and know where to get it in printed form from Doc Mosher. Those articles are longer, and were best introduced in a lasting printed format, the rigging info will be comparatively brief and easier to share. Just as with the CG stuff, the information is just a contribution to the Piet community, for builders of all power plants to use. I spent about $70K at Embry-Riddle and our home is literally lined with bookshelves filled with technical aviation books going back to the 1920s, all of this was money well spent with the goal of learning more about flight. But still, I can say that at least half of everything I have learned about planes in 25 years came from experienced people who just wanted to share what they new with others, the only price to be paid was being willing to listen, consider and learn. In contrast to all the other social graces I lack, I have always been respectful and grateful to anyone who is teaching me anything. Still, looking back, it is easy to identify countless times that I failed to fully appreciate the depth or impact some information would later have on my understanding. Most of the men I would like to go back and thank again, are gone now. I am left with emulating their method of sharing what they knew as the only way I can express my gratitude. I learned a lot from many good men, I have a large personal debt to pay, I expect it to take the rest of my life. ----------------------------------------------------------------------------- A link to a story about learning from people who are not 'pleasant' to you: http://flycorvair.net/2014/02/24/erau-models-of-integrity-2/ A link to a story about how different leadership in Aviation is from the corporate world: http://flycorvair.net/2014/02/24/erau-models-of-integrity-3/ A link to a story about uncompromising standards: http://flycorvair.net/2014/02/23/erau-models-of-integrity/ A link to a story about the man who defines "Aero-Engineer": http://flycorvair.net/2014/02/25/erau-models-of-integrity-4/ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426636#426636


    Message 8


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 09:33:30 AM PST US
    From: gcardinal@comcast.net
    Subject: Re: fly-ins
    Bob Poore will be there. Another possibility will be Ryan Kallenbach's corvair powered Pietenpol. Th is one has not been to Brodhead yet and might come down on Friday. =C2- Greg ----- Original Message ----- From: "Douwe Blumberg" <douweblumberg@earthlink.net> Sent: Monday, July 14, 2014 7:43:34 AM Subject: Pietenpol-List: fly-ins Doing an informal head count, it appears as if Brodhead might be light of p lanes this year.=C2- Sounds like some of the =9Cregulars=9D ( Mikee, Jack, Perkins??, aren=99t able to make it darn! =C2- Sounds like, Greg, Dan, me, hopefully another black and yellow bird?, one o r two Pavliga=99s, hopefully Don??? Who am I missing =C2- Is Matt flying in?=C2- Randy? =C2- Douwe ===


    Message 9


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 11:08:24 AM PST US
    Subject: Re: fly-ins
    From: woodflier <woodflier@aol.com>
    Douwe, I'm not going to be able to make Brodhead this year. I'm in partners hip in another airplane which we've sold but the pre-buy inspection discove red some engine problems, and that is going to keep me here in Virginia dea ling with that. Next year for sure! Matt -----Original Message----- From: Douwe Blumberg <douweblumberg@earthlink.net> Sent: Mon, Jul 14, 2014 8:38 am Subject: Pietenpol-List: fly-ins Doing an informal head count, it appears as if Brodhead might be light of p lanes this year. Sounds like some of the =9Cregulars=9D (Mikee , Jack, Perkins??, aren=99t able to make it darn! Sounds like, Greg, Dan, me, hopefully another black and yellow bird?, one o r two Pavliga=99s, hopefully Don??? Who am I missing Is Matt flying in? Randy? Douwe


    Message 10


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 11:35:22 AM PST US
    Subject: Corvair College
    From: "wheelharp" <wheelharp@gmail.com>
    Anyone going to Corvair College in Mexico, MO in September? I'm planning on going, and taking a core to tear down. -------- Jon Jones Ironton, MO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426655#426655


    Message 11


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 11:56:16 AM PST US
    Subject: Re: Brodhead rigging project - 2014
    From: "DonkDoug" <douglas.wright@okstate.edu>
    William, At lunch time today I ran the Riblett 30-612 airfoil data through a two dimensional analysis software that is, from what I understand, more reliable than the Eppler code Mr. Riblett used back in the day. At a Reynolds number appropriate for 75 mph cruise speeds and a 60" chord it gives an angle of attack of 1.104 degrees for a cruise lift coefficient of .55. The Eppler code and my eyeballing the CL off of Mr. Riblett's graph must have been close. When you do the calculations, the front cabanes should be .45" shorter than the rear cabanes based on these values. Doug Wright Stillwater, OK Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426656#426656


    Message 12


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 12:26:43 PM PST US
    Subject: Ooooops - well we all make misteasks.....
    From: "aerocarjake" <flight.jake@gmail.com>
    Hello good Piet-ple, I had a friend come over yesterday and we planned to remove one of my four wing spars - because it was "cupped" from when the original gentleman had built it. So we got out my small no-kerf pull saws and carefully took to sawing out the spar at each location where it was attached to the ribs. Then we cut the spar itself in lots of pieces to carefully remove the spar itself...... AND THEN I REALIZED WE WERE CUTTING OUT ONE OF THE GOOD SPARS...! Oh well, we then cut out the "cupped" rear spar in the other wing. The only good news about all of this is that I plan to rout pockets in the new spars so the new rear spars should be a bit lighter....! Such are the ups and downs of homebuilt airplane "progress" :-) Jake Attached is a photo of the second, cupped spar in pieces as we were carefully removing it...... -------- Jake Schultz - curator, Newport Way Air Museum (OK, it's just my home) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426657#426657 Attachments: http://forums.matronics.com//files/removing_cupped_spar_345.jpg


    Message 13


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 12:41:34 PM PST US
    Subject: Re: Ooooops - well we all make misteasks.....
    From: Gary Boothe <gboothe5@comcast.net>
    Jake, Well, I guess it was good experience, in preparation for the spar that counts! I know your pain as I had to replace a spar last year. I was very glad that I did not glue my ribs to the spar! Gary NX308MB Sent from my iPhone > On Jul 14, 2014, at 12:26 PM, "aerocarjake" <flight.jake@gmail.com> wrote: > > > Hello good Piet-ple, > > I had a friend come over yesterday and we planned to remove one of my four wing spars - because it was "cupped" from when the original gentleman had built it. > > So we got out my small no-kerf pull saws and carefully took to sawing out the spar at each location where it was attached to the ribs. Then we cut the spar itself in lots of pieces to carefully remove the spar itself...... AND THEN I REALIZED WE WERE CUTTING OUT ONE OF THE GOOD SPARS...! > > Oh well, we then cut out the "cupped" rear spar in the other wing. The only good news about all of this is that I plan to rout pockets in the new spars so the new rear spars should be a bit lighter....! > > Such are the ups and downs of homebuilt airplane "progress" :-) > > Jake > > Attached is a photo of the second, cupped spar in pieces as we were carefully removing it...... > > -------- > Jake Schultz - curator, > Newport Way Air Museum (OK, it's just my home) > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=426657#426657 > > > > > Attachments: > > http://forums.matronics.com//files/removing_cupped_spar_345.jpg > > > > > > >


    Message 14


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 01:04:41 PM PST US
    From: "Cuy, Michael D. (GRC-LME0)[Vantage Partners, LLC]" <michael.d.cuy@nasa.gov>
    Subject: Ooooops - well we all make misteasks.....
    That's better than building two right or two left wings Jake but none the l ess, feel your frustration. Mike C. Ohio


    Message 15


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 02:32:27 PM PST US
    From: "Mike McGowan" <shadetree@socket.net>
    Subject: Re: Corvair College
    I am Mike McGowan Hallsville Mo I'm available to help -----Original Message----- From: wheelharp Sent: Monday, July 14, 2014 1:31 PM Subject: Pietenpol-List: Corvair College Anyone going to Corvair College in Mexico, MO in September? I'm planning on going, and taking a core to tear down. -------- Jon Jones Ironton, MO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426655#426655 --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com


    Message 16


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 02:50:54 PM PST US
    Subject: Re: Corvair College
    From: "William Wynne" <WilliamTCA@aol.com>
    Jon, I wanted to point out to everyone that the sign up pages and information sheets for both Corvair College #30 and #31 can be found at this link: http://flycorvair.net/2014/06/19/corvair-college-30-and-31-sign-up-now-open/ Pietenpol builders should feel more than welcome at #30, even though it is being held September 16-19 at the Zenith factory in Mexico MO. Sebastien Heintz, president of Zenith is a friend of ours, and he always points out that all homebuilders are welcome at any event at his facility, not just Zenith customers. I have not looked at the sign up sheet closely (it is taken care of online by Ken Pavlou), but the event was 50% full last week, and we usually have a number of Piet builders at every college. ------------------------------------------------------------------- College #31 is November 7-9 at Barnwell SC, with Pietenpol builder and flyer PF Beck and crew. Pietenpols are well represented at Barnwell events, and Don Harper's plane is based there as well. ------------------------------------------------ Kevin Purtee and Shelley Tumino, aka "Axle and the IT-girl" , who will be at Brodhead, hosted Colleges #28 and #22 in Texas. We had a good turn out of Piet builders at both, because the local hosts always tend to draw a lot of builders from their own group of aviation friends who are working on the same airframe. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426668#426668


    Message 17


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 03:37:07 PM PST US
    Subject: Re: Ooooops - well we all make misteasks.....
    From: Steven Dortch <steven.d.dortch@gmail.com>
    Jake, thanks! I was moaning about what a bad day I was having. Then I got your email. After sawing through a 1x1 that was part of a mapshelf John Kuhfahl put in (to make room for my shins) I suddenly had a heart attack that I had sawn through a structural member. I could not find this structural member on the plans or in any photos. Then John told me 'No that is not structural! just a shelf." So I understand, sort of. Blue Skies, Steve D On Mon, Jul 14, 2014 at 2:26 PM, aerocarjake <flight.jake@gmail.com> wrote: > > > > Hello good Piet-ple, > > I had a friend come over yesterday and we planned to remove one of my four > wing spars - because it was "cupped" from when the original gentleman had > built it. > > So we got out my small no-kerf pull saws and carefully took to sawing out > the spar at each location where it was attached to the ribs. Then we cut > the spar itself in lots of pieces to carefully remove the spar itself...... > AND THEN I REALIZED WE WERE CUTTING OUT ONE OF THE GOOD SPARS...! > > Oh well, we then cut out the "cupped" rear spar in the other wing. The > only good news about all of this is that I plan to rout pockets in the new > spars so the new rear spars should be a bit lighter....! > > Such are the ups and downs of homebuilt airplane "progress" :-) > > Jake > > Attached is a photo of the second, cupped spar in pieces as we were > carefully removing it...... > > -------- > Jake Schultz - curator, > Newport Way Air Museum (OK, it's just my home) > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=426657#426657 > > > Attachments: > > http://forums.matronics.com//files/removing_cupped_spar_345.jpg > > -- Blue Skies, Steve D


    Message 18


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 04:15:04 PM PST US
    Subject: Re: Brodhead rigging project - 2014
    From: "William Wynne" <WilliamTCA@aol.com>
    Doug, That is some very good detective work. I strongly suspected that using the angle of incidence in the plans would be over doing it, your notes confirm this. When we go through the measurements at Brodhead, there will be more to learn. If you also have the ability to run the BHP airfoil through the same simulation, I would be very interested in seeing it, and then checking it against anything we can field test. ---------------------------------------------------------- Does anyone know how many Riblett -airfoiled Piets are flying? I would be very interested in hearing from pilots who are, what their cabane lengths are, and what their rigging data looks like. We could include all of that information with the Brodhead information, and hopefully have hard information builders to use in planning their plane or tuning the one they are flying. ----------------------------------------------------------- When we first started flying my Piet it only did 73 mph flat out. reworked many things on the plane in the following year, and raised the top speed to 105 mph. The plane was pretty well mannered and normal between 55-90 mph, but from 90 and up it lost some pitch stability. Flying at high speed puts the wing at a very low angle of attack, runs the fuselage nose down, and make the stabilizer run at an odd angle to the line of flight. There are limits to every combination, but within the a wide speed range it is possible to fine tune the plane to fly pretty well. ------------------------------------------------------------- Many years ago the KR-2 community looked at the same ideas, the designs original airfoil was an RAF-48 set at a 3.5 degree incidence, This worked ok with a 1600 cc VW and modest cruise, but it produced poor stability and odd rigging problems when the plane had the potential of cruising 30% faster. Some builders switched to a different airfoil, but as a general rule, all the people using more powerful engines decreased the angle of incidence in the wing. It is considered a great improvement on faster planes. ------------------------------------------------------------- Took my last flight in my Pietenpol 13 years ago today. I have been trough all four stages of Pietenpol-hood, dreaming of one, building one, having one , and wishing I still had one. I bought my plans from Don in the spring of 1989, and I used to devour every word in the old Piet newsletters, both the ones from Ohio (BPN) and the ones from Iowa.(International Piet news). For my first few years, everyone I was friends with in homebuilding was a Pietenpol person, and I lived under a very pleasant illusion that everyone in homebuilding was probably as nice as Pietenpol people. Working in the industry for all these years has brought us many friends, but has also revealed that the Pietenpol building community are a very rare oasis of salt of the earth people, and for reasons I still can't articulately explain 25 years later, I still think of Pietenpols as my home in homebuilding. -ww. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426673#426673


    Message 19


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 04:26:41 PM PST US
    Subject: Re: fly-ins
    From: Robert Bush <rbush96589@aol.com>
    I plan on being there in my Piet, weather permitting. If not I will come wit h my dad in the camper Randy Bush Sent from my iPhone On Jul 14, 2014, at 7:43 AM, "Douwe Blumberg" <douweblumberg@earthlink.net> w rote: > Doing an informal head count, it appears as if Brodhead might be light of p lanes this year. Sounds like some of the =9Cregulars=9D (Mikee, Jack, Perkins??, aren=99t able to make it darn! > > Sounds like, Greg, Dan, me, hopefully another black and yellow bird?, one o r two Pavliga=99s, hopefully Don??? Who am I missing > > Is Matt flying in? Randy? > > Douwe > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= >


    Message 20


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:26:18 PM PST US
    From: John Franklin <jbfjr@peoplepc.com>
    Subject: Re: Brodhead rigging project - 2014
    William, I can't technically comment on airfoils but didn't P.F. Beck and another gentleman at Barnwell make a detailed comparison of the Riblett and other Piet airfoil sometime in the last couple of years? See y'all at Brodhead, John Franklin GN-1 / 164cid Corvair (under construction) Prairie Aire 4TA0 Needville, TX -----Original Message----- >From: William Wynne <WilliamTCA@aol.com> >Sent: Jul 14, 2014 6:14 PM >To: pietenpol-list@matronics.com >Subject: Pietenpol-List: Re: Brodhead rigging project - 2014 > >---------------------------------------------------------- > >Does anyone know how many Riblett -airfoiled Piets are flying? I would be very interested in hearing from pilots who are, what their cabane lengths are, and what their rigging data looks like. We could include all of that information with the Brodhead information, and hopefully have hard information builders to use in planning their plane or tuning the one they are flying.


    Message 21


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:33:41 PM PST US
    Subject: Re: Kit from Aircraft Spruce
    From: "fastj22" <fastj22@yahoo.com>
    I've had the wing kit on order for 3 weeks. No response from ACS about an estimated ship date. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426683#426683


    Message 22


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:44:46 PM PST US
    Subject: Re: Brodhead rigging project - 2014
    From: "DonkDoug" <douglas.wright@okstate.edu>
    William, I ran the polars a few years ago for Mr. Pietenpol's airfoil and have them on my computer at work. I'll print them off tomorrow (if I can find them) and will bring them to Oshkosh. I believe one of the Reynolds number I ran was appropriate for 75 mph cruise, but will verify this. If not, I will run them again. It should be interesting to compare the real world, empirical data you collect at Brodhead versus the theoretical values the software comes up with. I remember a few years ago reading on this forum of a gentleman named Lowell Frank who had a Riblett 30-612 on his Piet. I also (vaguely) recall he had either equal length cabanes or front cabanes one inch longer than the rear and that he had to apply forward stick pressure at cruise and higher speeds. If I am remembering this correctly it makes me suspect my calculations are correct in that the front cabanes should be shorter than the rear by 1/2 of an inch in order to establish an appropriate angle of incidence for this airfoil on a Piet at cruising speeds. Doug Wright Stillwater, OK Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426686#426686


    Message 23


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:49:28 PM PST US
    Subject: Re: Brodhead rigging project - 2014
    From: Robert Gow <rgow@avionicsdesign.ca>
    Original Message From: DonkDoug Sent: Monday, July 14, 2014 21:45 Reply To: pietenpol-list@matronics.com Subject: Pietenpol-List: Re: Brodhead rigging project - 2014 William, I ran the polars a few years ago for Mr. Pietenpol's airfoil and have them on my computer at work. I'll print them off tomorrow (if I can find them) and will bring them to Oshkosh. I believe one of the Reynolds number I ran was appropriate for 75 mph cruise, but will verify this. If not, I will run them again. It should be interesting to compare the real world, empirical data you collect at Brodhead versus the theoretical values the software comes up with. I remember a few years ago reading on this forum of a gentleman named Lowell Frank who had a Riblett 30-612 on his Piet. I also (vaguely) recall he had either equal length cabanes or front cabanes one inch longer than the rear and that he had to apply forward stick pressure at cruise and higher speeds. If I am remembering this correctly it makes me suspect my calculations are correct in that the front cabanes should be shorter than the rear by 1/2 of an inch in order to establish an appropriate angle of incidence for this airfoil on a Piet at cruising speeds. Doug Wright Stillwater, OK Read this topic online here: http://forums.matronics.com/viewtopic.php?p=426686#426686


    Message 24


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:13:38 PM PST US
    From: "Boatright, Jeffrey" <jeffboatright@emory.edu>
    Subject: Kid's first Pietenpol ride
    QSBjb2xsZWdlIGJ1ZGR5IHdhcyBpbiB0b3duIGxhc3Qgd2VlayB3aXRoIGhpcyBmYW1pbHkuIEhp cyAxMCB5ZWFyIG9sZCBzb24gd2FzIGluIGEgcm9jayBjbGltYmluZyBjb21wZXRpdGlvbiAodG9v ayA1dGggbmF0aW9uYWxseSDigJMgbm90IGJhZCBmb3IgaGlzIGZpcnN0IGZ1bGwgeWVhciBvZiBj b21wZXRpdGlvbiEpLiBFbGxpb3QgYWxzbyBnb3QgdG8gcmlkZSBpbiB0aGUgUGlldGVucG9sLiBU aGVyZSB3ZXJlIHBsZW50eSBvZiBhZnRlcm5vb24gdGh1bmRlcnN0b3Jtcywgc28gd2UgY291bGRu J3Qgc3RheSB1cCBsb25nLiBZb3UnbGwgc2VlIGhvdyBmYXN0IHdlIHNrZWRhZGRsZWQgZm9yIHRo ZSBncm91bmQgd2hlbiB3ZSBzYXcgbGlnaHRuaW5nLiBIb3dldmVyLCBFbGxpb3QgZGlkIHZlcnkg d2VsbCBtYW5pcHVsYXRpbmcgdGhlIGNvbnRyb2xzIGZvciB0aGUgc2hvcnQgdGltZSB3ZSBoYWQu IEhlIGFsc28gd2VudCBvbiB0byBwbGFjZSA1dGggbmF0aW9uYWxseSBpbiBhIHJvY2sgY2xpbWJp bmcNCg0KaHR0cHM6Ly93d3cueW91dHViZS5jb20vd2F0Y2g/dj1EUlgyUHFVQkVWOA0KDQotLQ0K DQpKZWZmcmV5IEguIEJvYXRyaWdodCwgUGhELCBGQVJWTw0KUHJvZmVzc29yIG9mIE9waHRoYWxt b2xvZ3kNCkVtb3J5IFVuaXZlcnNpdHkgU2Nob29sIG9mIE1lZGljaW5lDQoNCg0KDQpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXw0KDQpUaGlzIGUtbWFpbCBtZXNzYWdlIChpbmNsdWRp bmcgYW55IGF0dGFjaG1lbnRzKSBpcyBmb3IgdGhlIHNvbGUgdXNlIG9mDQp0aGUgaW50ZW5kZWQg cmVjaXBpZW50KHMpIGFuZCBtYXkgY29udGFpbiBjb25maWRlbnRpYWwgYW5kIHByaXZpbGVnZWQN CmluZm9ybWF0aW9uLiBJZiB0aGUgcmVhZGVyIG9mIHRoaXMgbWVzc2FnZSBpcyBub3QgdGhlIGlu dGVuZGVkDQpyZWNpcGllbnQsIHlvdSBhcmUgaGVyZWJ5IG5vdGlmaWVkIHRoYXQgYW55IGRpc3Nl bWluYXRpb24sIGRpc3RyaWJ1dGlvbg0Kb3IgY29weWluZyBvZiB0aGlzIG1lc3NhZ2UgKGluY2x1 ZGluZyBhbnkgYXR0YWNobWVudHMpIGlzIHN0cmljdGx5DQpwcm9oaWJpdGVkLg0KDQpJZiB5b3Ug aGF2ZSByZWNlaXZlZCB0aGlzIG1lc3NhZ2UgaW4gZXJyb3IsIHBsZWFzZSBjb250YWN0DQp0aGUg c2VuZGVyIGJ5IHJlcGx5IGUtbWFpbCBtZXNzYWdlIGFuZCBkZXN0cm95IGFsbCBjb3BpZXMgb2Yg dGhlDQpvcmlnaW5hbCBtZXNzYWdlIChpbmNsdWRpbmcgYXR0YWNobWVudHMpLg0K


    Message 25


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 08:01:16 PM PST US
    Subject: Speaking of latex drying
    From: Steven Dortch <steven.d.dortch@gmail.com>
    I am about to paint the wings. I have them on a cradle with wheels. It holds both wings nose down with two straps across the leading edges. They lean together against a foam "noodle" about 3/4 back on the chord. My plan is to spray paint the top starting about 16 inches back from the leading edge. then when "dry" I will rotaten them and do the bottoms. Then when dry I will set it on a couple of tables to spray the leading edges. The high quality sherwin williams DTM latex (acrylic) paint I am using says it is dry to the touch in 30 min to an hour. tack free in 2-4 hours, and to recoat in 2-4 hours. It cures in 30 days. How long should I wait before I can lean the newly painted surface against the noodle? How about putting the leading edge back down into the cradle? Are there any other tips yall have? IE how do I fill the inspection holes so I can spray around them? Blue Skies, Steve D


    Message 26


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 08:28:59 PM PST US
    Subject: Re: Speaking of latex drying
    From: Steven Dortch <steven.d.dortch@gmail.com>
    And Yes I have watched Malcolm's Latex painting seminar. Learned a lot. Blue Skies, Steve D On Mon, Jul 14, 2014 at 10:00 PM, Steven Dortch <steven.d.dortch@gmail.com> wrote: > I am about to paint the wings. I have them on a cradle with wheels. It > holds both wings nose down with two straps across the leading edges. They > lean together against a foam "noodle" about 3/4 back on the chord. > > > My plan is to spray paint the top starting about 16 inches back from the > leading edge. then when "dry" I will rotaten them and do the bottoms. Then > when dry I will set it on a couple of tables to spray the leading edges. > > > The high quality sherwin williams DTM latex (acrylic) paint I am using > says it is dry to the touch in 30 min to an hour. tack free in 2-4 hours, > and to recoat in 2-4 hours. It cures in 30 days. > > > How long should I wait before I can lean the newly painted surface against > the noodle? How about putting the leading edge back down into the cradle? > > > Are there any other tips yall have? IE how do I fill the inspection holes > so I can spray around them? > > > Blue Skies, > > Steve D > > * > > > * > > -- Blue Skies, Steve D




    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
  • 7-Day List Browse
  •   http://www.matronics.com/browse/pietenpol-list
  • Browse Pietenpol-List 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.

    -- Please support this service by making your Contribution today! --