Original Posted By: Jose Dominguez
Well I found a few pictures of the installation I did with the straps I added-if you send me your address I'll forward them- I'll try to attach them to thisbut I am not sure if it will work. RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/mvc_ ... ___Subject: Pietenpol-List: GA 30-613.5 airfoil drawings.
Pietenpol-List: GA 30-613.5 airfoil drawings.
Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Original Posted By: "Billy McCaskill"
See! I knew you could do it! :-)Don't forget the vids.Oh, I think their engines a tad heavier. :-)Clif Hi Clif, I wondered if one of the police cars engines is heavier than a model A? We do have really good police presence in our neighborhood so might have to have a BBQ block off the street for some taxi tests; or drag race their cop cars! Jim B. ________________________________________________________________________________Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
See! I knew you could do it! :-)Don't forget the vids.Oh, I think their engines a tad heavier. :-)Clif Hi Clif, I wondered if one of the police cars engines is heavier than a model A? We do have really good police presence in our neighborhood so might have to have a BBQ block off the street for some taxi tests; or drag race their cop cars! Jim B. ________________________________________________________________________________Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Original Posted By: "TOM STINEMETZE"
If you search the archives of this list, the coordinates of the original Piet airfoil,the Riblett 612 and the 613.5 are posted. It's a simple matter to graphout the airfoil outline on some large paper with the coordinates provided.--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 01 Aug 2011 09:01:17 -0500
If you search the archives of this list, the coordinates of the original Piet airfoil,the Riblett 612 and the 613.5 are posted. It's a simple matter to graphout the airfoil outline on some large paper with the coordinates provided.--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 01 Aug 2011 09:01:17 -0500
Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Original Posted By: "Robert S. Edson"
Jose, let me search in my computer for the files and if I can find them I willemail them direct to you as an attachment. They were posted here on the listas an attachment quite some time ago, and I saved them. Just not sure where Isaved them, or if it was even on this computer.--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Jose, let me search in my computer for the files and if I can find them I willemail them direct to you as an attachment. They were posted here on the listas an attachment quite some time ago, and I saved them. Just not sure where Isaved them, or if it was even on this computer.--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Wing Strut Cable Length Change
Original Posted By: "kevinpurtee"
I am useing riblett 612 ribs and I was told to make the cabanes the same length. Now I was told if (if) it was me II would make the front cabane 1/2" longer. Does anyone have any positive input on this. I started my piet last year upon my return from Brodhead and the frame is complete and on the gear, 21" wheels,ash gear with brakes. Gages in and 0-200 running with one hour run time. Cowting complete, windshield,leather comming,padded seats and installing innercom.Almost ready to cover. Thank you for your time ---I enjoy everyones comments . Bob Edson________________________________________________________________________________Subject: Pietenpol-List: Re: Wing Strut Cable Length Change
I am useing riblett 612 ribs and I was told to make the cabanes the same length. Now I was told if (if) it was me II would make the front cabane 1/2" longer. Does anyone have any positive input on this. I started my piet last year upon my return from Brodhead and the frame is complete and on the gear, 21" wheels,ash gear with brakes. Gages in and 0-200 running with one hour run time. Cowting complete, windshield,leather comming,padded seats and installing innercom.Almost ready to cover. Thank you for your time ---I enjoy everyones comments . Bob Edson________________________________________________________________________________Subject: Pietenpol-List: Re: Wing Strut Cable Length Change
Pietenpol-List: Re: cabanes
Original Posted By: "Billy McCaskill"
Same here. Suggest you wait to make them.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: cabanes
Same here. Suggest you wait to make them.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: cabanes
Original Posted By: Ben Charvet
Wow, you work fast Bob! As far as I know, Pieti Lowell is the only one who is currently flying a Piet withthe 612 wing, so he would be the one to offer any valid input on this. Ido know that I talked to him at Brodhead last year about the 612, and at thattime he was flying his plane with the cabanes as per the plans and he statedthat he had to hold a lot of forward pressure on the stick for straight and levelflight. He said that he needed to address this by either shortening the frontstruts or lengthening the rear struts to change the angle of incidence, notsure if he's done this yet. He was at Brodhead this year, but I did not geta chance to ask him about this.If it were me, I'd make the rear struts longer rather than shortening the frontstruts, just as a matter of making for easier entry into the cockpit. As tothe +1/2" incidence for your wing, I hope that Pieti chimes in on this, as he'sthe authority on the Riblett wing on Piets right now...--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 01 Aug 2011 16:56:47 -0400
Wow, you work fast Bob! As far as I know, Pieti Lowell is the only one who is currently flying a Piet withthe 612 wing, so he would be the one to offer any valid input on this. Ido know that I talked to him at Brodhead last year about the 612, and at thattime he was flying his plane with the cabanes as per the plans and he statedthat he had to hold a lot of forward pressure on the stick for straight and levelflight. He said that he needed to address this by either shortening the frontstruts or lengthening the rear struts to change the angle of incidence, notsure if he's done this yet. He was at Brodhead this year, but I did not geta chance to ask him about this.If it were me, I'd make the rear struts longer rather than shortening the frontstruts, just as a matter of making for easier entry into the cockpit. As tothe +1/2" incidence for your wing, I hope that Pieti chimes in on this, as he'sthe authority on the Riblett wing on Piets right now...--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 01 Aug 2011 16:56:47 -0400
Re: Pietenpol-List: Wing Strut Cable Length Change
Original Posted By: Dan Yocum
Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Original Posted By: "Billy McCaskill"
Hi People:I suggest : make the cabanes the same length and, one can add adapter blocks toget it perfect with standard wing length, Keep in mind that my wings are 2 feetshorter than standard, It shouldn't make any difference. I find that , withthe lower radiator the trim is different, the center section is now lift area.If I fly at 65 MPH and at 1800 RPM the stick is neutral, at 1900 the speed movesto 72 MPH , and at 1875 RPM air speed increases to 78 MPH. And as the speedsgo up the forward pressure increases on the stick.I have been slow in raising the aft cabanes because it also requires a number ofother adjustments in the flying wires and rear strut length.The entrance is much easer with a higher wing location and it does not effect theflying characteristics one bit. The 612 ers are going to be surprised with their wing, Just wait and see what Ihave enjoyed since 2004.If the angle is too close to natural I gain air speed, like being on the step,with a little stick back-pressure added.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Hi People:I suggest : make the cabanes the same length and, one can add adapter blocks toget it perfect with standard wing length, Keep in mind that my wings are 2 feetshorter than standard, It shouldn't make any difference. I find that , withthe lower radiator the trim is different, the center section is now lift area.If I fly at 65 MPH and at 1800 RPM the stick is neutral, at 1900 the speed movesto 72 MPH , and at 1875 RPM air speed increases to 78 MPH. And as the speedsgo up the forward pressure increases on the stick.I have been slow in raising the aft cabanes because it also requires a number ofother adjustments in the flying wires and rear strut length.The entrance is much easer with a higher wing location and it does not effect theflying characteristics one bit. The 612 ers are going to be surprised with their wing, Just wait and see what Ihave enjoyed since 2004.If the angle is too close to natural I gain air speed, like being on the step,with a little stick back-pressure added.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Original Posted By: "Pieti Lowell"
Jose,I tried emailing you with the info you requested, but the email bounced. Pleasecontact me at billmz (at) cox. net with a valid email address so that I canemail those files to you...--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Jose,I tried emailing you with the info you requested, but the email bounced. Pleasecontact me at billmz (at) cox. net with a valid email address so that I canemail those files to you...--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Pietenpol-List: Re: source for Eisemann magneto parts?
Original Posted By: "Don Emch"
I have all of the Pietenpol plans and just purchased the GN-1 plans. I have readsome great posts on the pros and cons of each, but I need more details. Iam not 100% sure at this time which airplane I should build. Can anyone please tell me why you chose to build and fly the GN-1 over the originalPietenpol? Do they fly the same? Any major cost differences or buildingskills needed?Thanks a bunch, please send me all of your thoughts pros and cons.Blue skies,DonatoRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: source for Eisemann magneto parts?
I have all of the Pietenpol plans and just purchased the GN-1 plans. I have readsome great posts on the pros and cons of each, but I need more details. Iam not 100% sure at this time which airplane I should build. Can anyone please tell me why you chose to build and fly the GN-1 over the originalPietenpol? Do they fly the same? Any major cost differences or buildingskills needed?Thanks a bunch, please send me all of your thoughts pros and cons.Blue skies,DonatoRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: source for Eisemann magneto parts?
Original Posted By: Bill Princell
Definitely call them. Great people to deal with but they just don't do "modern".You can just describe to them what you need over the phone and they'll sendit out. They don't do Visa. Just check or C.O.D. If you are in a bind youcan tell them and usually they will send it out before they receive the payment.I've bought a lot of stuff from them...always good quality.Don EmchNX899DEP.S. Great to hear everyone has made it home safe!Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Definitely call them. Great people to deal with but they just don't do "modern".You can just describe to them what you need over the phone and they'll sendit out. They don't do Visa. Just check or C.O.D. If you are in a bind youcan tell them and usually they will send it out before they receive the payment.I've bought a lot of stuff from them...always good quality.Don EmchNX899DEP.S. Great to hear everyone has made it home safe!Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Piet vs. GN-1
Original Posted By: "Billy McCaskill"
Subject: Re: Pietenpol-List: cabanesHi Dan:I'm also using the GA612 airfoil and just finished fabricating my cabanestruts this afternoon. They are going to the weld shop in the morning. BillRewey, who I bought the full size GA612 rib drawing from, told me lastsummer at Brodhead, to make the rear cabanes 1" shorter than the front ones.A couple of weeks ago Bill Church who has an engineering background postedinformation on this list, stating that he had calculated the actualdifference in length to be 11/16" between the longer front cabanes and therear ones. I went with Bill's dimensions. I guess if I find out later that Iscrewed up, I can always use Lowell's spacer suggestion.Bill Princell - Noblesville, INCorvair Powered/Pietenpol Rebuild ProjectOn Mon, Aug 1, 2011 at 4:58 PM, Dan Yocum wrote:>> According to my math,>________________________________________________________________________________Subject: Pietenpol-List: Re: Piet vs. GN-1
Subject: Re: Pietenpol-List: cabanesHi Dan:I'm also using the GA612 airfoil and just finished fabricating my cabanestruts this afternoon. They are going to the weld shop in the morning. BillRewey, who I bought the full size GA612 rib drawing from, told me lastsummer at Brodhead, to make the rear cabanes 1" shorter than the front ones.A couple of weeks ago Bill Church who has an engineering background postedinformation on this list, stating that he had calculated the actualdifference in length to be 11/16" between the longer front cabanes and therear ones. I went with Bill's dimensions. I guess if I find out later that Iscrewed up, I can always use Lowell's spacer suggestion.Bill Princell - Noblesville, INCorvair Powered/Pietenpol Rebuild ProjectOn Mon, Aug 1, 2011 at 4:58 PM, Dan Yocum wrote:>> According to my math,>________________________________________________________________________________Subject: Pietenpol-List: Re: Piet vs. GN-1
Re: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: Michael Silvius
Mr. Riblett's comments on the stall characteristics of the original Pietenpol airfoil are complete rubbish.Watch Jeff Boatright's youtube videos demonstrating stalls for one example of mild stalls.The stall characteristics of NX18235 are equally mild. There is nothing sudden or unsafe when stalling a Pietenpol.Greg Cardinal ----- Original Message -----
Mr. Riblett's comments on the stall characteristics of the original Pietenpol airfoil are complete rubbish.Watch Jeff Boatright's youtube videos demonstrating stalls for one example of mild stalls.The stall characteristics of NX18235 are equally mild. There is nothing sudden or unsafe when stalling a Pietenpol.Greg Cardinal ----- Original Message -----
Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: "Greg Cardinal"
Jose:Found these in my stash of goodies, hope they help... Saludos:Michael________________________________________________________________________________
Jose:Found these in my stash of goodies, hope they help... Saludos:Michael________________________________________________________________________________
Fwd: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: helspersew(at)aol.com
Airfoil characteristics are profoundly affected by planform/aspect ratio,washout/twist, adjacent bodies such as struts, radiators, etc. Obviously,many years of successful flying trump some early computer analysis. I haveflown, safely and happily, in airplanes with sharp leading edges and thinsections that had horrible AIRFOIL characteristics but quite controllableAIRPLANE characteristics. To call a serious scientific investigation of an airfoil into doubt becauseyour airplane behaves in a way that, to your non-scientific observation, isinconsistent with the results of the investigation, is like saying leadpaint can't be dangerous because your grandma safely drove a Buick.________________________________________________________________________________Subject: Fwd: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Airfoil characteristics are profoundly affected by planform/aspect ratio,washout/twist, adjacent bodies such as struts, radiators, etc. Obviously,many years of successful flying trump some early computer analysis. I haveflown, safely and happily, in airplanes with sharp leading edges and thinsections that had horrible AIRFOIL characteristics but quite controllableAIRPLANE characteristics. To call a serious scientific investigation of an airfoil into doubt becauseyour airplane behaves in a way that, to your non-scientific observation, isinconsistent with the results of the investigation, is like saying leadpaint can't be dangerous because your grandma safely drove a Buick.________________________________________________________________________________Subject: Fwd: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: Michael Silvius
Why all this discussion of Riblett and other airfoils? I don't get it. Check out this vid from The Great Jim Markle, Brodhead 2011, at 3:00 min and 5:00 min. First one is a Ford Model A and the second is Kevin's proven 85 horse Corvair. Both climb like a rocket on a hot summer day. What more does one want from a Piet? http://youtu.be/DjY0YVsjc7UDan HelsperPuryear, TN-----Original Message-----
Why all this discussion of Riblett and other airfoils? I don't get it. Check out this vid from The Great Jim Markle, Brodhead 2011, at 3:00 min and 5:00 min. First one is a Ford Model A and the second is Kevin's proven 85 horse Corvair. Both climb like a rocket on a hot summer day. What more does one want from a Piet? http://youtu.be/DjY0YVsjc7UDan HelsperPuryear, TN-----Original Message-----
Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: Ben Charvet
Re: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: Ryan Mueller
And I've gotta go with you, Ben.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 4 Aug 2011 00:13:33 -0500Subject: Re: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
And I've gotta go with you, Ben.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 4 Aug 2011 00:13:33 -0500Subject: Re: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
> Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: John Franklin
Re: Pietenpol-List: brake cables
Original Posted By: Ken Bickers
Subject: Re: Pietenpol-List: brake cables
Subject: Re: Pietenpol-List: brake cables
Fwd: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Original Posted By: helspersew(at)aol.com
A very wise old bush pilot told me more than once. There are 2 things you can never have too much of. Wing and horse power. Of course by wing he meant lift.Doug DeverIn beautiful Stow OhioSubject: Fwd: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
A very wise old bush pilot told me more than once. There are 2 things you can never have too much of. Wing and horse power. Of course by wing he meant lift.Doug DeverIn beautiful Stow OhioSubject: Fwd: Pietenpol-List: re: GA 30-613.5 airfoil drawings.
Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Original Posted By: "Don Emch"
To all you Brodhead participants who made Helen and I so welcome on our first visit,thank you.The event was fantastic, the people fantastic and we all know Pietenpols are fantasticanyway!John Theron *About to start Pietenpol building in England*--------The only way is UPRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
To all you Brodhead participants who made Helen and I so welcome on our first visit,thank you.The event was fantastic, the people fantastic and we all know Pietenpols are fantasticanyway!John Theron *About to start Pietenpol building in England*--------The only way is UPRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: GA 30-613.5 airfoil drawings.
Pietenpol-List: Re: Brodhead Participants
Original Posted By: "Pieti Lowell"
I'm right there with you too Greg. The stall is very very gentle. Obviously Mr.Riblett has never flown a Piet. Quite a bold statement for someone who hasnever experienced it firsthand! I've had the fortune of flying a handful ofthem and they all behave the same. Very nice and gentle. I've never talked toanyone that built the basic "plans" wing and felt the stall was anything butvery gentle.I don't mean to rant on and on but I really do get tired of people that say negativethings about the Piet and its flying characteristics when they have neverexperienced the original design themselves. So even if there has been a seriousscientific evaluation of the airfoil it doesn't mean a whole lot if the airplanejust doesn't behave the way they think it should.I think I'm going to go enjoy stalling my airplane this evening.
Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Brodhead Participants
I'm right there with you too Greg. The stall is very very gentle. Obviously Mr.Riblett has never flown a Piet. Quite a bold statement for someone who hasnever experienced it firsthand! I've had the fortune of flying a handful ofthem and they all behave the same. Very nice and gentle. I've never talked toanyone that built the basic "plans" wing and felt the stall was anything butvery gentle.I don't mean to rant on and on but I really do get tired of people that say negativethings about the Piet and its flying characteristics when they have neverexperienced the original design themselves. So even if there has been a seriousscientific evaluation of the airfoil it doesn't mean a whole lot if the airplanejust doesn't behave the way they think it should.I think I'm going to go enjoy stalling my airplane this evening.
Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Brodhead ParticipantsRe: Pietenpol-List: Brodhead Participants
Original Posted By: helspersew(at)aol.com
Hello John,Sorry about the tail wheel assembly. Did you get in touch with Ken Perkins ? Hesaid ," I have 12 ready to put on a Piet."Glad to meet you and your lady, we are happy to have you at Brodhead.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Brodhead Participants
Hello John,Sorry about the tail wheel assembly. Did you get in touch with Ken Perkins ? Hesaid ," I have 12 ready to put on a Piet."Glad to meet you and your lady, we are happy to have you at Brodhead.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Brodhead Participants
Original Posted By: johnnysdrop
Hi John and Helen,Glad to hear that you and Helen made it home safely. Hope y'all had a great time here in Brodhead and Oshkosh. Can't wait to hear about the progress on your new Piet, in your new shop that you described to me. Please come back whenever you have a chance. We will all look forward to it. Good luck my friend.Dan HelsperPoplar Grove, ILPuryear, TNUSA-----Original Message-----
Hi John and Helen,Glad to hear that you and Helen made it home safely. Hope y'all had a great time here in Brodhead and Oshkosh. Can't wait to hear about the progress on your new Piet, in your new shop that you described to me. Please come back whenever you have a chance. We will all look forward to it. Good luck my friend.Dan HelsperPoplar Grove, ILPuryear, TNUSA-----Original Message-----
Original Posted By: Michael Silvius
Why all this discussion of Riblett and other airfoils? I don't get it. Check out this vid from The Great Jim Markle=2C Brodhead 2011=2C at 3:00 min and 5:00 min. First one is a Ford Model A and the second is Kevin's proven 85 horse Corvair. Both climb like a rocket on a hot summer day. What more does one want from a Piet? http://youtu.be/DjY0YVsjc7UDan HelsperPuryear=2C TN-----Original Message-----
Why all this discussion of Riblett and other airfoils? I don't get it. Check out this vid from The Great Jim Markle=2C Brodhead 2011=2C at 3:00 min and 5:00 min. First one is a Ford Model A and the second is Kevin's proven 85 horse Corvair. Both climb like a rocket on a hot summer day. What more does one want from a Piet? http://youtu.be/DjY0YVsjc7UDan HelsperPuryear=2C TN-----Original Message-----