Pietenpol-List Digest Archive

Wed 01/26/05


Total Messages Posted: 28



Today's Message Index:
----------------------
 
     1. 12:55 AM - Lift strut angle (rod wooller)
     2. 03:04 AM - Re: Lift strut angle (Peter W Johnson)
     3. 04:36 AM - Re: Lift strut angle (walt evans)
     4. 06:27 AM - torque values (Douwe Blumberg)
     5. 07:22 AM - Re: Raising the wing (Larry Nelson)
     6. 07:43 AM - Re: Lift strut angle (Phillips, Jack)
     7. 07:48 AM - Re: Raising the wing (Phillips, Jack)
     8. 07:48 AM - Bellcrank question (Rick Holland)
     9. 08:14 AM - Re: Raising the wing (Les Schubert)
    10. 08:40 AM - Accurate Wood List (Derek Doyle)
    11. 09:51 AM - Varnished Wings (Galen Hutcheson)
    12. 10:52 AM - Re: N327BC First Flight Today (Hodgson, Mark O)
    13. 03:00 PM - Brodhead (lshutks@webtv.net (Leon Stefan))
    14. 03:28 PM - Re: Varnished Wings (Doyle Combs)
    15. 04:08 PM - Re: Varnished Wings (Galen Hutcheson)
    16. 04:14 PM - Re: N327BC First Flight Today (Galen Hutcheson)
    17. 04:28 PM - Re: Varnished Wings (Jim Malley)
    18. 05:37 PM - Re: Brodhead (Cinda Gadd)
    19. 06:16 PM - Helicopter perfection (off-topic) (Oscar Zuniga)
    20. 07:07 PM - Re: Helicopter perfection (off-topic) (DJ Vegh)
    21. 07:26 PM - Re: Helicopter perfection (off-topic) (Larry Ragan)
    22. 08:17 PM - Re: Lift strut angle (Rcaprd@aol.com)
    23. 08:27 PM - Re: Lift strut angle (Clif Dawson)
    24. 08:45 PM - Re: Bellcrank question (Rcaprd@aol.com)
    25. 08:54 PM - Re: Lift strut angle (rod wooller)
    26. 09:16 PM - Re: Varnished Wings (Galen Hutcheson)
    27. 09:29 PM - Re: Bellcrank question (bike.mike)
    28. 10:01 PM - Re: Bellcrank question (Clif Dawson)
 
 
 


Message 1


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    Time: 12:55:57 AM PST US
    From: "rod wooller" <rodwooller@hotmail.com>
    Subject: Lift strut angle
    --> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com> Group, I am starting to make the fuselage brackets for the landing gear (split axle) and have a question regarding the tab that the wing lift strut attaches to. The plans say bend the tab up 20 degrees. I drew a diagram on some graph paper with a vertical measurement of 46" (fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from the cabane out to the spar bracket). This gives me an angle of 30 degrees. Am I measuring something wrong, and is the angle of the tab critical ? Only want to make these things once :-) Congratulations Bert, Rod Wooller Chidlow Australia ( Three and a half years in )


    Message 2


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    Time: 03:04:11 AM PST US
    From: "Peter W Johnson" <vk3eka@bigpond.net.au>
    Subject: Lift strut angle
    --> Pietenpol-List message posted by: "Peter W Johnson" <vk3eka@bigpond.net.au> Rod, My Jim Wills plans show 28 degrees. Cheers Peter. Wonthaggi, Australia http://www.cpc-world.com -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of rod wooller Subject: Pietenpol-List: Lift strut angle --> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com> Group, I am starting to make the fuselage brackets for the landing gear (split axle) and have a question regarding the tab that the wing lift strut attaches to. The plans say bend the tab up 20 degrees. I drew a diagram on some graph paper with a vertical measurement of 46" (fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from the cabane out to the spar bracket). This gives me an angle of 30 degrees. Am I measuring something wrong, and is the angle of the tab critical ? Only want to make these things once :-) Congratulations Bert, Rod Wooller Chidlow Australia ( Three and a half years in )


    Message 3


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    Time: 04:36:34 AM PST US
    From: "walt evans" <wbeevans@verizon.net>
    Subject: Re: Lift strut angle
    --> Pietenpol-List message posted by: "walt evans" <wbeevans@verizon.net> I made mine right to the plans and after final assy , my tabs weren't right on the centerline of the strut. The plans also say that you need some play in the holes to avoid side stresses on the bolt and "chrystalizing" <sp> walt evans NX140DL ----- Original Message ----- From: "rod wooller" <rodwooller@hotmail.com> Subject: Pietenpol-List: Lift strut angle > --> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com> > > Group, > > I am starting to make the fuselage brackets for the landing gear (split > axle) and have a question regarding the tab that the wing lift strut > attaches to. The plans say bend the tab up 20 degrees. > I drew a diagram on some graph paper with a vertical measurement of 46" > (fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from > the cabane out to the spar bracket). > This gives me an angle of 30 degrees. > Am I measuring something wrong, and is the angle of the tab critical ? Only > want to make these things once :-) > > Congratulations Bert, > > Rod Wooller > Chidlow > Australia ( Three and a half years in ) > >


    Message 4


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    Time: 06:27:24 AM PST US
    From: "Douwe Blumberg" <douweblumberg@earthlink.net>
    Subject: torque values
    Can someone please give me the torque values for 7/16 fine and 3/8 fine aircraft grade bolts? thanks!! Douwe douweblumberg@earthlink.net


    Message 5


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    Time: 07:22:08 AM PST US
    s=s1024; d=yahoo.com; b=RF1pls8zPyi5zwprifSPKMtbgjEg+M+KSIccgCb7A/ckVroUpg4H8kPxpAPBfCg1ybUfDHdp7vpUHQuFIl65SXJ5/BbeFFVcgx1fcZzuhSa/X2wVJSa+fyIo0IzIwyz6Mvzwh0JIaM8bc9v6R4f6S5mNgklrPVGU+8bZo14OFP8= ;
    From: Larry Nelson <lnelson208@yahoo.com>
    Subject: Re: Raising the wing
    --> Pietenpol-List message posted by: Larry Nelson <lnelson208@yahoo.com> I was going to post this on the "lift strut angle" thread but decided not to hijack that thread. I am trying to determine all of the ramifications of raising the wing on N444MH, Howard Henderson's plane which I own. It appears that when I raise the wing 2" (is that not a common "raise" for the wing?) I will need to redo the fuel line, the cabane struts, and the cabane strut wires, unless I go with the forward hard braces. I will need to lengthen the aileron cables, or effectively lengthen them with some sort of "link" at the controls. Now, when you raise the wing, does not the angle of the lift struts change? Or does the raising of the wing also require different lift struts? Anyone on the list raise the wing of a completed plane? Should I just live with crunching myself up to enter the cockpit? Should I have surgery and change MY geometry? (Too many questions....) ===== Larry Nelson Springfield, MO Beechcraft Bonanza V-35B N2980A Pietenpol Air Camper N444MH 1963 GMC 4106-1618 SV/ Spirit of America ARS WB0JOT


    Message 6


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    Time: 07:43:26 AM PST US
    Subject: Lift strut angle
    From: "Phillips, Jack" <jphillip@alarismed.com>
    --> Pietenpol-List message posted by: "Phillips, Jack" <jphillip@alarismed.com> Rod, The angle is fairly critical and should be in line with the centerline of the strut, otherwise it imparts bending moments that can jack up the stresses unnecessarily. I didn't build that type of gear on mine (I used the straight axle undercarriage with wire wheels), but I wouldn't be surprised for this to be a mistake in the plans - there are plenty of mistakes. Go with your own geometry - make measuremetns of the parts you have and align the angle with your struts. Any variations you have made in fuselage width, cabane strut length, or position of the lift strut attach points on the wing will affect the angle. For what it's worth, on mine, with cabanes 2-1/2" longer than plans, my angle was right at 30 degrees. Jack Phillips, PE Sr. Manager, Disposables Product Development Clinical Technologies and Services Cardinal Health Creedmoor, NC (919) 528-5212 -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of rod wooller Subject: Pietenpol-List: Lift strut angle --> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com> Group, I am starting to make the fuselage brackets for the landing gear (split axle) and have a question regarding the tab that the wing lift strut attaches to. The plans say bend the tab up 20 degrees. I drew a diagram on some graph paper with a vertical measurement of 46" (fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from the cabane out to the spar bracket). This gives me an angle of 30 degrees. Am I measuring something wrong, and is the angle of the tab critical ? Only want to make these things once :-) Congratulations Bert, Rod Wooller Chidlow Australia ( Three and a half years in )


    Message 7


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    Time: 07:48:19 AM PST US
    Subject: Raising the wing
    From: "Phillips, Jack" <jphillip@alarismed.com>
    --> Pietenpol-List message posted by: "Phillips, Jack" <jphillip@alarismed.com> If you raise the wing, you will need to make new lift struts as well as new cabanes. All the other things you mentioned must be changed as well (fuel lines, aileron cables, roll wires). The roll wire fittings should also be changed if the angle of the wires changes significantly, but I doubt you will be changing it that much. The diagonal struts that run from the forward cabanes down to the engine mount must be changed as well (unless N444MH uses the bracing wires on the right side of the cockpit for fore and aft bracing. Jack Phillips -----Original Message----- --> Pietenpol-List message posted by: Larry Nelson <lnelson208@yahoo.com> I was going to post this on the "lift strut angle" thread but decided not to hijack that thread. I am trying to determine all of the ramifications of raising the wing on N444MH, Howard Henderson's plane which I own. It appears that when I raise the wing 2" (is that not a common "raise" for the wing?) I will need to redo the fuel line, the cabane struts, and the cabane strut wires, unless I go with the forward hard braces. I will need to lengthen the aileron cables, or effectively lengthen them with some sort of "link" at the controls. Now, when you raise the wing, does not the angle of the lift struts change? Or does the raising of the wing also require different lift struts? Anyone on the list raise the wing of a completed plane? Should I just live with crunching myself up to enter the cockpit? Should I have surgery and change MY geometry? (Too many questions....) ===== Larry Nelson


    Message 8


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    Time: 07:48:21 AM PST US
    From: Rick Holland <at7000ft@gmail.com>
    Subject: Bellcrank question
    --> Pietenpol-List message posted by: Rick Holland <at7000ft@gmail.com> Yes, I know I need to just shutup and build it to the plans but I would just like everyone's opinion on this one. On the plans the bellcrank is made with two holes on the top and two holes on the bottom with four shackles (at $8.00 each) directly connecting all front and back elevator control cables. In the archives people complain about their elevator cables going slack. In addition to saying this is normal people claim that the solution is to have the cables connect to the bellcrank in the middle, even with the center of rotation. But no one offers a method of accomplishing this. Well here is one way to do it and simplify the design as well. Just dill one hole at the top and bottom in the center. Most Piet belllcranks I have seen do not follow the plans and use short metal straps with clevis pins to connect the bellbrank holes to the control cables with maybe a shackle or two in between. Just use four short metal straps at each end connected by a single clevis pin, two pointing forward and two pointing back. Cheap, easy, simplier, don't see how it would offer less strength. Sorry for the long post and tell me where I am thinking wrong here. -- Rick Holland


    Message 9


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    Time: 08:14:14 AM PST US
    From: Les Schubert <leskarin@telus.net>
    Subject: Re: Raising the wing
    Larry I can understand your problem I think! I am 6'4" tall and could NOT get into the cockpit without the wing in place. Looking at the access issue I simply left off the tail end of the centre section behind the rear spar. I know some people have put this part on a hinge so they can swing it up out of the way. If you have the 3 piece wing this might be a simpler solution. I also built mine as a single place as I had to move the instrument panel ahead 4 inches. If I had been starting from scratch I would have stretched to front part of the fuselage about 6 inches and left it as a 2 place but I had bought a partly built project from a estate so removing the front cockpit was way easier, and with only 65 hp this way I don't have to consider the extra weight of a passenger. Anyway "BLACK PIET" will hopefully fly in a month. It is mostly Black with white trim and wing top accents. 65 hp Continental Narco radio, C transponder, registered as a ultralight so controlled airspace is easier Les in Calgary At 07:21 AM 26/01/2005 -0800, you wrote: >--> Pietenpol-List message posted by: Larry Nelson <lnelson208@yahoo.com> > > >I was going to post this on the "lift strut angle" >thread but decided not to hijack that thread. > >I am trying to determine all of the ramifications of >raising the wing on N444MH, Howard Henderson's plane >which I own. > >It appears that when I raise the wing 2" (is that not >a common "raise" for the wing?) I will need to redo >the fuel line, the cabane struts, and the cabane strut >wires, unless I go with the forward hard braces. I >will need to lengthen the aileron cables, or >effectively lengthen them with some sort of "link" at >the controls. > >Now, when you raise the wing, does not the angle of >the lift struts change? Or does the raising of the >wing also require different lift struts? > >Anyone on the list raise the wing of a completed >plane? Should I just live with crunching myself up to >enter the cockpit? Should I have surgery and change MY >geometry? (Too many questions....) > >===== >Larry Nelson >Springfield, MO >Beechcraft Bonanza V-35B N2980A >Pietenpol Air Camper N444MH >1963 GMC 4106-1618 >SV/ Spirit of America >ARS WB0JOT > >__________________________________________________ > >


    Message 10


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    Time: 08:40:04 AM PST US
    From: "Derek Doyle" <doylederek@eircom.net>
    Subject: Accurate Wood List
    I've just received my plans and need to order the wood for a long bodied three piece wing aircamper. I'll be ordering from Aircraft Spruce and shipping to Europe so I want to avoid any mistakes. I've seen a wood list mentioned in the archives (Sep 04) and would appreciate it if someone would e-mail me a copy. Regards Derek Doyle


    Message 11


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    Time: 09:51:31 AM PST US
    s=s1024; d=yahoo.com; b=b0bECKFICnGpbM3TZBQQrgnfbxZhJUcFw4KawX4GYAlT+1wrqV+0kdS1AKY+2YPJnuaFHwALkCWZN2Gaa7SEosMl0LYEm6Zr1BZvtR/txgXEW4nuDI4pKzRK0o5o//6WyAx9o+YEXWbNg8kAH8JGoryYSB596Nt0Fm9xwxLxoBY= ;
    From: Galen Hutcheson <wacopitts@yahoo.com>
    Subject: Varnished Wings
    --> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com> Hello Gang, I'm sure this has come up in the past, though I can't get a hit on the search engine. Has anyone had experience with varnished wings? I just figured up the paint cost for the plane I am building and nearly had heart failure! A friend of mine knew of a Piet that had varnished wings and that it was flying and holding up well. Does anyone know of this plane and how I can contact the builder? I think the varnishing would be much cheaper than the painting process. The Helsman Spar Urethane I am using on the wood has some UV protection, but is it enough? Has anyone added alumn. powder to the varnish to improve the UV protection? I know, questions, questions... Thanks and best wishes to all. Doc __________________________________ http://info.mail.yahoo.com/mail_250


    Message 12


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    Time: 10:52:47 AM PST US
    Subject: Re: N327BC First Flight Today
    From: "Hodgson, Mark O" <mhodgson@bu.edu>
    --> Pietenpol-List message posted by: "Hodgson, Mark O" <mhodgson@bu.edu> Ok it's just piling on at this point, but here's my congrats also! There can't be too much reinforcement when it comes to a first flight. Mark Hodgson


    Message 13


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    Time: 03:00:47 PM PST US
    ETAsAhQIOZzt8HtZ00kvZzWaLLbd6FRH+AIUT5tQtiqUBFhzMQEbJo+4ikKAyE0=
    From: lshutks@webtv.net (Leon Stefan)
    Subject: Brodhead
    --> Pietenpol-List message posted by: lshutks@webtv.net (Leon Stefan) Hello: We have to pick our summer vacation in the next week or so (where I work) The last B.Head newsletter didn't have any dates for the fly in. Is it the weekend before Oshkosh as usual? Does any ine know? Thanks.


    Message 14


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    Time: 03:28:51 PM PST US
    s=test1; d=earthlink.net; b=d3s0pFfr8lz6vZZ6Q3tbAFeUDkTxhV8ZxB2MnFwzjXMVxIIocmJHDjSX0n5nWfG+;
    From: "Doyle Combs" <doylecombskeith@earthlink.net>
    Subject: Varnished Wings
    --> Pietenpol-List message posted by: "Doyle Combs" <doylecombskeith@earthlink.net> Galen, you might want to check out latex paint. I clearcoated the latex and it looks pretty good and not soft as it was before. > [Original Message] > From: Galen Hutcheson <wacopitts@yahoo.com> > To: <pietenpol-list@matronics.com> > Date: 1/26/2005 11:50:44 AM > Subject: Pietenpol-List: Varnished Wings > > --> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com> > > Hello Gang, > > I'm sure this has come up in the past, though I can't > get a hit on the search engine. Has anyone had > experience with varnished wings? I just figured up > the paint cost for the plane I am building and nearly > had heart failure! A friend of mine knew of a Piet > that had varnished wings and that it was flying and > holding up well. Does anyone know of this plane and > how I can contact the builder? I think the varnishing > would be much cheaper than the painting process. The > Helsman Spar Urethane I am using on the wood has some > UV protection, but is it enough? Has anyone added > alumn. powder to the varnish to improve the UV > protection? I know, questions, questions... > > Thanks and best wishes to all. > > Doc > > > > __________________________________ > http://info.mail.yahoo.com/mail_250 > > > > > > >


    Message 15


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    Time: 04:08:28 PM PST US
    s=s1024; d=yahoo.com; b=y9Q+l98taWgmWUgW4xNT3Stib10llB7PKVg4gdiy7A5lQ2QTnGz8EuBspfXuz866CCcV2U30drml+obCrCdn3S0at4nruQLZAnseEe+SJFExmCKeMo7qS/OlZluW/8h8rQNSY1bGV0EYVRURc1WYpB1HcwkYI7bD224FrxMcN4s= ;
    From: Galen Hutcheson <wacopitts@yahoo.com>
    Subject: Varnished Wings
    --> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com> Hi Doyle, I've been following the discussions on latex paint and am impressed. The varnishing interests me because the finished product would have a very old appearing finish. I thought it would go very well with the plane's antique history. I am definately going to look at the latex paint before I pay outlandish prices for A/C grade paint. It seems like anything aviation has to cost 3 times as much as non-aviation materials. Thank goodness we have the experimental class to do just that, EXPERIMENT! Thanks. Galen (aka Doc) --- Doyle Combs <doylecombskeith@earthlink.net> wrote: Galen, you might want to check out latex paint. I > clearcoated the latex and > it looks pretty good and not soft as it was before. > > > > > > > > > > > __________________________________ > more. > > http://info.mail.yahoo.com/mail_250 > > > > > > > > > > > > > > > > > > > > > > Contributions > any other > Forums. > > http://www.matronics.com/subscription > http://www.matronics.com/FAQ/Pietenpol-List.htm > http://www.matronics.com/archives > http://www.matronics.com/photoshare > http://www.matronics.com/emaillists > > > > > > __________________________________ http://info.mail.yahoo.com/mail_250


    Message 16


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    Time: 04:14:38 PM PST US
    s=s1024; d=yahoo.com; b=He+o5WkkxQFv16YTIv0tY0hvJVB/arkvuEuEEPhwbfT3BOqPfqMqtOrv7s3ePry69TI4Gw7k4owGOEZV8zjMHV5FrSh+in6IZRkVECyYWqoC1I6KWqPBmRuY/FdMMQzZ26eB/vlG0zimn4Qfm0WpJjsu1vfzJ6rp/KIupK+9lvc= ;
    From: Galen Hutcheson <wacopitts@yahoo.com>
    Subject: Re: N327BC First Flight Today
    --> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com> Let me add my straw to the bundle and congrats on the first flight. Even though you didn't make that first flight yourself (and each pilot has to know his limitations and to know when it is wise to let someone else make the first flight) it has to be a rush to see an airplane that you built with your own hands fly so successfully. It makes us all (those who still labor over dreams of someday flying our creations) envious and yet proud that you have accomplished what you set out to do 9 years ago. Best wishes and always "fly safe." Doc --- "Hodgson, Mark O" <mhodgson@bu.edu> wrote: > --> Pietenpol-List message posted by: "Hodgson, Mark > O" <mhodgson@bu.edu> > > Ok it's just piling on at this point, but here's my > congrats also! > There can't be too much reinforcement when it comes > to a first flight. > > Mark Hodgson > > > > > > > > > Contributions > any other > Forums. > > http://www.matronics.com/subscription > http://www.matronics.com/FAQ/Pietenpol-List.htm > http://www.matronics.com/archives > http://www.matronics.com/photoshare > http://www.matronics.com/emaillists > > > > > >


    Message 17


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    Time: 04:28:37 PM PST US
    From: "Jim Malley" <jgmalley@comcast.net>
    Subject: Re: Varnished Wings
    --> Pietenpol-List message posted by: "Jim Malley" <jgmalley@comcast.net> About 20 years ago, I made up some samples of fabric coverings to test for durability, ease of fabrication, cost of the project, etc. One of the samples was varnished with a brand that claimed some built-in UV protection. The samples were left in the backyard for a couple of years; the sun, the rain and a few of the neighbors' pets had a go at them. All held up well. The varnished sample was relatively inexpensive, but 2 coats of it weighed more than 9 coats of dope; also, I couldn't get the tapes to look right (and I tried both gluing them on and varnishing them on). Partial to the aesthetics of the "varnished look," I finally went with clear dope, mixing in a little color on the 8th coat. There's no UV protection, but the combination of a hangar, the Northeast's numerous sunless days, and everyday nightfall have combined to keep the fabric in pretty good shape at the 15 year mark. Jim Malley ----- Original Message ----- From: "Galen Hutcheson" <wacopitts@yahoo.com> Subject: Pietenpol-List: Varnished Wings > --> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com> > > Hello Gang, > > I'm sure this has come up in the past, though I can't > get a hit on the search engine. Has anyone had > experience with varnished wings? I just figured up > the paint cost for the plane I am building and nearly > had heart failure! A friend of mine knew of a Piet > that had varnished wings and that it was flying and > holding up well. Does anyone know of this plane and > how I can contact the builder? I think the varnishing > would be much cheaper than the painting process. The > Helsman Spar Urethane I am using on the wood has some > UV protection, but is it enough? Has anyone added > alumn. powder to the varnish to improve the UV > protection? I know, questions, questions... > > Thanks and best wishes to all. > > Doc > > > __________________________________ > http://info.mail.yahoo.com/mail_250 > >


    Message 18


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    Time: 05:37:46 PM PST US
    s=test1; d=earthlink.net; b=BccO2fT7fDhsjLsvYcuUT+snjbIXMC4epNWiXI/FTXWQGNnGk0ozhxUp5vGggY1O;
    From: "Cinda Gadd" <csfog@earthlink.net>
    Subject: Brodhead
    --> Pietenpol-List message posted by: "Cinda Gadd" <csfog@earthlink.net> Leon, The EAA chapter website says July 22 and 23 2005. Skip Is it the weekend before Oshkosh as usual? Does any ine know? > Thanks. > > > > >


    Message 19


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    Time: 06:16:57 PM PST US
    From: "Oscar Zuniga" <taildrags@hotmail.com>
    Subject: Helicopter perfection (off-topic)
    --> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com> I don't fly RC models and I don't fly choppers, but I just watched a video clip of an RC chopper doing things I didn't think possible. I think DJ would appreciate this one since he's an RC guy. It's several minutes of video so it takes a bit to download (I have cable modem and it took about a minute): http://www.compfused.com/directlink/557/ Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net


    Message 20


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    Time: 07:07:53 PM PST US
    From: "DJ Vegh" <djv@imagedv.com>
    Subject: Re: Helicopter perfection (off-topic)
    --> Pietenpol-List message posted by: "DJ Vegh" <djv@imagedv.com> ahhhh yeas... Alan Szabo. he flies a Raptor 90. I have a Raptor 50. I've flown with him at that field in Vegas a couple years ago. We put night blades (LED's in the tips) on and flew our helicopters at night... loops rools, inverted hovering... even flew through the sprinklers that night. He's a great pilot. DJ ----- Original Message ----- From: "Oscar Zuniga" <taildrags@hotmail.com> Subject: Pietenpol-List: Helicopter perfection (off-topic) > --> Pietenpol-List message posted by: "Oscar Zuniga" > <taildrags@hotmail.com> > > I don't fly RC models and I don't fly choppers, but I just watched a video > clip of an RC chopper doing things I didn't think possible. I think DJ > would appreciate this one since he's an RC guy. It's several minutes of > video so it takes a bit to download (I have cable modem and it took about > a minute): > > http://www.compfused.com/directlink/557/ > > Oscar Zuniga > San Antonio, TX > mailto: taildrags@hotmail.com > website at http://www.flysquirrel.net > > >


    Message 21


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    Time: 07:26:08 PM PST US
    From: "Larry Ragan" <lragan@hotmail.com>
    Subject: Re: Helicopter perfection (off-topic)
    DNA: do not archive Its-Bogus: do not forward to list --- MIME Errors --- A message with no text/plain section was received. The entire body of the message was removed. Please resend the email using plaintext formatting. NOTE! This error can also occur when the poster of the message has a specific type of computer virus. This virus WAS NOT forwarded on to the List. The poster should be informed of the potential problem with their system as soon as possible. --- MIME Errors ---


    Message 22


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    Time: 08:17:45 PM PST US
    From: Rcaprd@aol.com
    Subject: Re: Lift strut angle
    --> Pietenpol-List message posted by: Rcaprd@aol.com Rod, The angle of the tab is critical, and should be parallel to the lift struts, and have nice clean round holes in them, to attach the lift struts. As for the holes, I much prefer pilot holes, then match drill the finished holes when the lift struts are fitted. I suggest you triple check all your measurements (especially if you change the cabane strut length, or the fuselage width), and use the angle you come up with. The angle is much closer to 30 than it is to 20. While we're on this subject, the 90 angle fittings on the inside calls out for 20 ga. (.035"). Last summer, I changed all four of those angle fittings inside, because they were .035" 1020 steel, and they dimpled into the wood. I replaced them with .063" 4130 steel. On the front cross strap, I also added a 3/16" (#10) bolt up through the 2" cross piece strap, through the White Ash cross strut, because the 2" strap bowed away from the bottom of the fuselage. It was probably caused by the negative G's imposed on the lift struts, as a result of a hard landing. This is somewhat of a common anomaly of the design. I only installed one bolt up through the centerline, but now the 2" strap is showing a gap on the left side. I will add two more 3/16" (#10) bolts for a total of three bolts up through the Ash Cross Strut. I'm talking about the front strap. For the rear cross strap, there is already plenty of bolts going up through the strap into the ash cross piece, with the rudder bar brace, and it is where I mounted the master cylinders pivot points, a couple of inches to each side of the centerline. While flying, I use the 30 angle of the lift struts to attain a 30 bank angle, by keeping them parallel to the ground. Chuck G. NX770CG Wichita KS wishing you Texas Boys could shove some of that 70 weather up this way !!


    Message 23


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    Time: 08:27:00 PM PST US
    From: Clif Dawson <CDAWSON5854@shaw.ca>
    Subject: Re: Lift strut angle
    --> Pietenpol-List message posted by: Clif Dawson <CDAWSON5854@shaw.ca> Second that. The angle shown on your plans will be for a specific case which assumes following the plans to the letter. As Jack says, as soon as you make any change, longer cabanes, positive dihedral, deeper fuselage, wider fuselage, all of the above, that angle will change. There is a Piet for sale here, built some years ago by a pair of airline mechanics, with a 6" wider fuselage among other things. It has flown for some years with an unmodified corvair except for the removal of the cooling fan. Jim Wills plans? Clif Landing gear sitting on fuselage, in jig, waiting for bolts from Wicks. I'm having trouble waiting to turn it over so I can sit in it and make engine noises again! > Rod, > > The angle is fairly critical and should be in line with the centerline > of the strut, otherwise it imparts bending moments that can jack up the > stresses unnecessarily. > I didn't build that type of gear on mine (I used the straight axle > undercarriage with wire wheels), but I wouldn't be surprised for this to > be a mistake in the plans - there are plenty of mistakes. Go with your > own geometry - make measuremetns of the parts you have and align the > angle with your struts. Any variations you have made in fuselage width, > cabane strut length, or position of the lift strut attach points on the > wing will affect the angle. > > For what it's worth, on mine, with cabanes 2-1/2" longer than plans, my > angle was right at 30 degrees. > > Jack Phillips, PE


    Message 24


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    Time: 08:45:20 PM PST US
    From: Rcaprd@aol.com
    Subject: Re: Bellcrank question
    --> Pietenpol-List message posted by: Rcaprd@aol.com Rick, I believe the purpose of two holes on top, and two holes on the lower end of the bellcrank, is to offer redundency, in the event of a pin failure. Chuck G.


    Message 25


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    Time: 08:54:25 PM PST US
    From: "rod wooller" <rodwooller@hotmail.com>
    Subject: Lift strut angle
    --> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com> Thanks guys for all the replies and helpful hints. I'll re-measure everything accurately and make the angle to suit. Thanks again, Rod >From: "rod wooller" <rodwooller@hotmail.com> >Reply-To: pietenpol-list@matronics.com >To: pietenpol-list@matronics.com >Subject: Pietenpol-List: Lift strut angle >Date: Wed, 26 Jan 2005 16:44:12 +0800 > >--> Pietenpol-List message posted by: "rod wooller" ><rodwooller@hotmail.com> > >Group, > >I am starting to make the fuselage brackets for the landing >gear............. > Rod Wooller >Chidlow >Australia ( Three and a half years in ) > >


    Message 26


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    Time: 09:16:07 PM PST US
    s=s1024; d=yahoo.com; b=VQAOP86T0TEsb8ciSU5uyked06+wZPxb11aPKMmsVW6f6Fka1lX36199u5fuzBHPmqAtLDrMgKQLIsgRXu2+OoXQFwtFkOcW1ADuFKKd3dNXLGmT2kfw2XYQABebLBhSa10WDM91+pJFLjBB3Bff8Om9M9XBvyx8+IE32sDCUss= ;
    From: Galen Hutcheson <wacopitts@yahoo.com>
    Subject: Re: Varnished Wings
    --> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com> Thanks for the info Jim, I wonder how one good coat of spar urethane varnish would work. It would cut down on the weight. Perhaps with some alumn. powder mixed in. I haven't priced the clear dope as yet, it may be cheaper than the Poly Stitts stuff I priced. Doc - > > > > > > > > __________________________________ > more. > > http://info.mail.yahoo.com/mail_250 > > > > > > > > > > > > > > > > > > > > > > > Contributions > any other > Forums. > > http://www.matronics.com/subscription > http://www.matronics.com/FAQ/Pietenpol-List.htm > http://www.matronics.com/archives > http://www.matronics.com/photoshare > http://www.matronics.com/emaillists > > > > > >


    Message 27


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    Time: 09:29:01 PM PST US
    From: "bike.mike" <bike.mike@verizon.net>
    Subject: Re: Bellcrank question
    --> Pietenpol-List message posted by: "bike.mike" <bike.mike@verizon.net> I don't think any redundancy is gained by the use of four pins. If any one of the four bellcrank pins breaks, elevator control is lost...you can't push a cable. Counter-intuitively, having only two pins would reduce the theoretical probability of failure. Mike Hardaway ----- Original Message ----- From: <Rcaprd@aol.com> Subject: Re: Pietenpol-List: Bellcrank question > --> Pietenpol-List message posted by: Rcaprd@aol.com > > Rick, > I believe the purpose of two holes on top, and two holes on the lower end of > the bellcrank, is to offer redundancy, in the event of a pin failure. > > Chuck G. > >


    Message 28


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    Time: 10:01:38 PM PST US
    From: Clif Dawson <CDAWSON5854@shaw.ca>
    Subject: Re: Bellcrank question
    <003201c5042f$4f3710b0$6401a8c0@the48194bd3804> --> Pietenpol-List message posted by: Clif Dawson <CDAWSON5854@shaw.ca> If all else fails, use you arms :-) Clif Subject: Re: Pietenpol-List: Bellcrank question > I don't think any redundancy is gained by the use of four pins. If any one > of the four bellcrank pins breaks, elevator control is lost...you can't push > a cable. > Counter-intuitively, having only two pins would reduce the theoretical > probability of failure. > > Mike Hardaway




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