Original Posted By: "Gboothe5"
My name is Bob Edson and I live in Branson Mo. I started my piet in August 2010 and have all the frame completed and on the wooden gear with 21 in. spoked wheels. The engine is an 0200 with 20 min. time on it. Just finished the cowl and I'm installing the instruments and engine controls. I hope to have it finished by winter. All wood is sitka and the ribs are Riblet. Having a great time--got started a little later than most people , I'm 76 years old.Bob Edson________________________________________________________________________________
Pietenpol-List: first time on list
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Bob,You're my Hero-for-the-Day! Send some pictures!!Gary BootheCool, Ca
Bob,You're my Hero-for-the-Day! Send some pictures!!Gary BootheCool, Ca
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Welcome to the wonderful world of Pieters, Bob. Sounds like you'll have anice airplane (I'm partial to wire spoked wheels and Continental engines).Come to Brodhead this summer if you can.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
Welcome to the wonderful world of Pieters, Bob. Sounds like you'll have anice airplane (I'm partial to wire spoked wheels and Continental engines).Come to Brodhead this summer if you can.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
Pietenpol-List: Re: Dihedral vs. crosswind
Original Posted By: airlion
Jack's answer came in while I was posting, so I was not able to read it first.So I guess maybe the question is a two-parter-1. Would dihedral help the Pietenpol wing?2. If so, how much dihedral is needed before any effect is noted?It still would not hurt to contact Harry Riblett, or some other expert, if fornother reason than, he might help you avoid unnecessary work if the dihedral haslittle benefit.--------Semper Fi,TerryRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 25 May 2011 05:29:41 -0700 (PDT)
Jack's answer came in while I was posting, so I was not able to read it first.So I guess maybe the question is a two-parter-1. Would dihedral help the Pietenpol wing?2. If so, how much dihedral is needed before any effect is noted?It still would not hurt to contact Harry Riblett, or some other expert, if fornother reason than, he might help you avoid unnecessary work if the dihedral haslittle benefit.--------Semper Fi,TerryRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 25 May 2011 05:29:41 -0700 (PDT)
RE: Pietenpol-List: Re: Dihedral vs. crosswind
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Dihedral is not very important or useful for a Pietenpol. The reason isthat parasol wing monoplanes exhibit what is called the "Pendulum Effect",because the vertical center of gravity is below the plane of the wing,causing the same righting moments as dihedral is supposed to accomplish.This is why you see much less dihedral used in high wing cabin monoplanesthat in low wing aircraft. Parasol wing aircraft have an even strongerpendulum effect than high wing cabin jobs, since their CG is lower withoutthe weight of all that cabin structure so high. Does that make sense?Most people that add dihedral to a Pietenpol do it to counter the supposed"droop" look that a straight wing has. I myself added 1/2" dihedral(0.16=B0) per side to mine to avoid this, before realizing that this effect isnot apparent when looking at airplanes in the flesh, but shows up inphotographs when short focal length (wide angle) lenses are used.Look at some one piece wing Pietenpols such as Dan Helsper's at Brodhead in56 days and you will see what I mean.Dihedral is not needed for stability purposes for Pietenpols, and to get anymore stability would require such a steep angle as to look funny.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
Dihedral is not very important or useful for a Pietenpol. The reason isthat parasol wing monoplanes exhibit what is called the "Pendulum Effect",because the vertical center of gravity is below the plane of the wing,causing the same righting moments as dihedral is supposed to accomplish.This is why you see much less dihedral used in high wing cabin monoplanesthat in low wing aircraft. Parasol wing aircraft have an even strongerpendulum effect than high wing cabin jobs, since their CG is lower withoutthe weight of all that cabin structure so high. Does that make sense?Most people that add dihedral to a Pietenpol do it to counter the supposed"droop" look that a straight wing has. I myself added 1/2" dihedral(0.16=B0) per side to mine to avoid this, before realizing that this effect isnot apparent when looking at airplanes in the flesh, but shows up inphotographs when short focal length (wide angle) lenses are used.Look at some one piece wing Pietenpols such as Dan Helsper's at Brodhead in56 days and you will see what I mean.Dihedral is not needed for stability purposes for Pietenpols, and to get anymore stability would require such a steep angle as to look funny.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Gardiner,You won't have to wait so long for your ribs. Ryan Mueller last nightordered enough spruce, plywood and T-88 to make a set of ribs and had itsent to my house. I've pulled my old rib jig off the shelf and as soon asthe wood gets here I will start building your ribs. I hope to have themfinished before Brodhead and can ship them to you (I don't think a stack of5' long ribs will fit in your Cessna 140 - I used to have a 140 and itscabin is only 35" wide).You are too valuable to this list to allow you to not get your Piet back inthe air.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
Gardiner,You won't have to wait so long for your ribs. Ryan Mueller last nightordered enough spruce, plywood and T-88 to make a set of ribs and had itsent to my house. I've pulled my old rib jig off the shelf and as soon asthe wood gets here I will start building your ribs. I hope to have themfinished before Brodhead and can ship them to you (I don't think a stack of5' long ribs will fit in your Cessna 140 - I used to have a 140 and itscabin is only 35" wide).You are too valuable to this list to allow you to not get your Piet back inthe air.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
Pietenpol-List: first time on list
Original Posted By: Michael Perez
Re: Pietenpol-List: Fitting Wings Soon...advise?
Original Posted By: airlion
Pietenpol-List: Re: Dihedral vs. crosswind
Original Posted By: "jarheadpilot82"
I don't think this deserves to be buried in another unrelated thread. One of themany (but also one of the finest) examples of camaraderie I've seen on thislist. You guys really are something else. Speaking of Gardiner's Piet... it made the papers again. This time in Sport Aviation.Something to do with tie downs, but I haven't read the article yet. pietflyr(at)bellsouth.net wrote:> Gardiner, > > You wont have to wait so long for your ribs. Ryan Mueller last night orderedenough spruce, plywood and T-88 to make a set of ribs and had it sent to my house.Ive pulled my old rib jig off the shelf and as soon as the wood gets hereI will start building your ribs. I hope to have them finished before Brodheadand can ship them to you (I dont think a stack of 5 long ribs will fit inyour Cessna 140 I used to have a 140 and its cabin is only 35 wide). > > You are too valuable to this list to allow you to not get your Piet back in theair. > > Jack Phillips > NX899JP Icarus Plummet > Smith Mountain Lake, Virginia--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Dihedral vs. crosswind
I don't think this deserves to be buried in another unrelated thread. One of themany (but also one of the finest) examples of camaraderie I've seen on thislist. You guys really are something else. Speaking of Gardiner's Piet... it made the papers again. This time in Sport Aviation.Something to do with tie downs, but I haven't read the article yet. pietflyr(at)bellsouth.net wrote:> Gardiner, > > You wont have to wait so long for your ribs. Ryan Mueller last night orderedenough spruce, plywood and T-88 to make a set of ribs and had it sent to my house.Ive pulled my old rib jig off the shelf and as soon as the wood gets hereI will start building your ribs. I hope to have them finished before Brodheadand can ship them to you (I dont think a stack of 5 long ribs will fit inyour Cessna 140 I used to have a 140 and its cabin is only 35 wide). > > You are too valuable to this list to allow you to not get your Piet back in theair. > > Jack Phillips > NX899JP Icarus Plummet > Smith Mountain Lake, Virginia--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Dihedral vs. crosswind
Original Posted By: "Gboothe5"
Jack,Great explanation! Your discussion about parasol wing makes perfect sense. Thanksfor the input.--------Semper Fi,TerryRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Jack,Great explanation! Your discussion about parasol wing makes perfect sense. Thanksfor the input.--------Semper Fi,TerryRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Jack,I'd offer to help, but poor Gardiner wouldn't get his ribs for another 3years!You & Ryan..I don't know what to say.just proud to know you!Gary
Jack,I'd offer to help, but poor Gardiner wouldn't get his ribs for another 3years!You & Ryan..I don't know what to say.just proud to know you!Gary
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Gardiner,What kind of treatment to the trailing edge tips of the ribs do you want?Do you want them cut off square, or a step included to attach a woodentrailing edge? Or should I just bring them to a point and let you do as youwish with them when you get the ribs?I used preformed aluminum trailing edge material on mine and woulddefinitely NOT do that again - it is too hard to keep it from creeping underfabric tension (look at the little puckers at each rib on my trailing edges- those puckers were not there when I first covered it), and it is tooeasily damaged when an idiot walks into it, as happened this past weekend atthe Lynchburg Airshow. I just hope it hurt him as much as it hurt myairplane.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
Gardiner,What kind of treatment to the trailing edge tips of the ribs do you want?Do you want them cut off square, or a step included to attach a woodentrailing edge? Or should I just bring them to a point and let you do as youwish with them when you get the ribs?I used preformed aluminum trailing edge material on mine and woulddefinitely NOT do that again - it is too hard to keep it from creeping underfabric tension (look at the little puckers at each rib on my trailing edges- those puckers were not there when I first covered it), and it is tooeasily damaged when an idiot walks into it, as happened this past weekend atthe Lynchburg Airshow. I just hope it hurt him as much as it hurt myairplane.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
We can just have a little Mutual Admiration Society party at Brodhead.Actually, Gary you started it when you sent me that piece of streamlinetubing to use on my RV-10 (it fits perfectly, by the way). This is whatthis group is all about, helping each other. And this is what setsPietenpol People apart from all the other groups on the 'net.Jack _____
We can just have a little Mutual Admiration Society party at Brodhead.Actually, Gary you started it when you sent me that piece of streamlinetubing to use on my RV-10 (it fits perfectly, by the way). This is whatthis group is all about, helping each other. And this is what setsPietenpol People apart from all the other groups on the 'net.Jack _____
RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
If it were mine, I would do something similar to what Mike Cuy suggested. Iwould definitely do wood, just don't know what configuration. I'll probablymake the ribs with the capstrips going all the way to a point, and you canthen trim them to fit whatever you decide to use for a trailing edge. Thatmight make for a good study at Brodhead, investigating the varioustechniques used.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
If it were mine, I would do something similar to what Mike Cuy suggested. Iwould definitely do wood, just don't know what configuration. I'll probablymake the ribs with the capstrips going all the way to a point, and you canthen trim them to fit whatever you decide to use for a trailing edge. Thatmight make for a good study at Brodhead, investigating the varioustechniques used.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia _____
RE: Pietenpol-List: Re: Dihedral vs. crosswind
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Might look something like this:Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
Might look something like this:Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
RE: RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
This worked well for me, not tested thought. The picture is the best Ihave. Basically I cut a groove in the trailing edge front and the rear ofthe rib with a 1/8" blade in the table saw. Then used 1/8th ply to join.JackDSM _____
This worked well for me, not tested thought. The picture is the best Ihave. Basically I cut a groove in the trailing edge front and the rear ofthe rib with a 1/8" blade in the table saw. Then used 1/8th ply to join.JackDSM _____
RE: RE: Pietenpol-List: first time on list
Original Posted By: owner-pietenpol-list-server(at)matronics.com
That looks very nice, Jack. _____
That looks very nice, Jack. _____
Pietenpol-List: Re: first time on list
Original Posted By: Woodflier(at)aol.com
You know, Gardiner, thank goodness Gary's not doing your wing ribs. He mentionedit would take 5 years. He didn't mention you'd be missing two when he wasdone.I've said it before: nice Piet people.do not arcive--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
You know, Gardiner, thank goodness Gary's not doing your wing ribs. He mentionedit would take 5 years. He didn't mention you'd be missing two when he wasdone.I've said it before: nice Piet people.do not arcive--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________