Pietenpol-List Digest Archive

Wed 10/07/09


Total Messages Posted: 41



Today's Message Index:
----------------------
 
     1. 12:15 AM - Re: Poplar;perfect (Robert Ray)
     2. 04:43 AM - Google Images (Jack)
     3. 04:44 AM - Tom Brown (Jack)
     4. 05:24 AM - tailwheel springs (Douwe Blumberg)
     5. 05:43 AM - control cable exit holes (Douwe Blumberg)
     6. 05:54 AM - Re: tailwheel springs (Scott Knowlton)
     7. 07:21 AM - Re: tailwheel springs (Doug Dever)
     8. 07:22 AM - Re: control cable exit holes (Doug Dever)
     9. 08:15 AM - Re: tailwheel springs (shad bell)
    10. 08:16 AM - Re: control cable exit holes (Ryan Mueller)
    11. 08:16 AM - Re: translating Jorge's post- #1 (Mike Volckmann)
    12. 08:18 AM - Re: tailwheel springs (Doug Dever)
    13. 08:44 AM - Re: Piets near my travels (Ken Howe)
    14. 08:44 AM - tailwheel springs (Oscar Zuniga)
    15. 09:19 AM - Re: tailwheel springs (Ken Chambers)
    16. 09:41 AM - Re: tailwheel springs (Doug Dever)
    17. 11:04 AM - Re: Re: Landing at Airports with Gulfstreams... (Ross Alexander)
    18. 11:38 AM - Spring Gear (jack@textors.com)
    19. 11:56 AM - Re: Spring Gear (K5YAC)
    20. 12:01 PM - Re: Spring Gear (K5YAC)
    21. 12:20 PM - Re: tailwheel springs (Ben Charvet)
    22. 12:20 PM - Re: control cable exit holes (Dan Yocum)
    23. 12:23 PM - Re: tailwheel springs (Ben Charvet)
    24. 01:21 PM - Re: tailwheel springs (Doug Dever)
    25. 01:53 PM - control cable exit holes (Oscar Zuniga)
    26. 02:11 PM - Re: Spring Gear (Bill Church)
    27. 02:42 PM - Re: Spring Gear (Jack)
    28. 02:49 PM - Re: Spring Gear (skellytown flyer)
    29. 03:15 PM - Re: the cost of building (Javier Cruz)
    30. 03:22 PM - Re: translating Jorge's post- #1 (Javier Cruz)
    31. 04:21 PM - Re: Spring Gear (Mike Tunnicliffe)
    32. 04:42 PM - Re: Spring Gear (Ken Howe)
    33. 05:43 PM - Re: Spring Gear (Jim)
    34. 06:24 PM - Re: Spring Gear (Jeff Boatright)
    35. 06:48 PM - Re: control cable exit holes (Jeff Boatright)
    36. 06:56 PM - Re: Spring Gear (Bill Church)
    37. 08:09 PM - one/three piece wing (santiago morete)
    38. 08:13 PM - center section plywood (TOM MICHELLE BRANT)
    39. 08:35 PM - Re: control cable exit holes (Dan Yocum)
    40. 08:48 PM - Re: Spring Gear (Clif Dawson)
    41. 10:08 PM - Re: Re: 3-piece wing fairings (jorge lizarraga)
 
 
 


Message 1


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    Time: 12:15:01 AM PST US
    Subject: Re: Poplar;perfect
    From: Robert Ray <rray032003@gmail.com>
    I think perhaps Piet one and maybe two possibly had wood ca banes, That is the first Mr. Pietenpol built. NOT SURE There should be wood in your area that has the characteristic's that meet your needs, check for ash, oak, check with a local timber man, then research the species. In other words in Europe the Zlin has been built with Polish Pine spars, so look at a local variety in your area, select it grade it your self. Hope this helps, Russell On Wed, Oct 7, 2009 at 2:00 AM, jorge lizarraga <flightwood@yahoo.com>wrote : > these is amaisen proyect i lern some were about people used wood for > cabanes these is real hicory and spruse parts i like to now and how to fo und > these wood is le$$$$ $pence in these way? the ww1 planes used for all tr ue > ward and is bery acrobatic planes tanks for all you inform jorge from > hanford, > > --- On *Mon, 10/5/09, Gary Boothe <gboothe5@comcast.net>* wrote: > > > From: Gary Boothe <gboothe5@comcast.net> > Subject: RE: Pietenpol-List: Poplar > To: pietenpol-list@matronics.com > Date: Monday, October 5, 2009, 7:41 AM > > Tom, > > > Here are a few pics. Mine are simply laminated Hickory with no other > frills. I can take some other close-ups if you want. The lift struts will > also be Hickory , but I won=92t make them until the wings are done and I can > get some actual measurements for length. I like the attachments that Douw e > shows in the attachment. > > > I know others have used spruce and combination with core materials ' yo u > should be fine. > > > Gary Boothe > > Cool, Ca. > > Pietenpol > > WW Corvair Conversion, mounted > > Tail done, Fuselage on gear > > (15 ribs down=85) > ------------------------------ > > *From:* owner-pietenpol-list-server@matronics.com [mailto: > owner-pietenpol-list-server@matronics.com] *On Behalf Of *TOM MICHELLE > BRANT > *Sent:* Monday, October 05, 2009 7:14 AM > *To:* pietenpol-list@matronics.com > *Subject:* RE: Pietenpol-List: Poplar > > > Gary, > > I'm interested in your struts - do you have a photo? Are these the lift > struts, cabanes,??? I plan on making mine of spruce with a ply core (lif t, > cabanes, etc). > > Thanks, > > Tom B. > ------------------------------ > > From: gboothe5@comcast.net > To: pietenpol-list@matronics.com > Subject: RE: Pietenpol-List: Poplar > Date: Mon, 5 Oct 2009 05:13:36 -0700 > > Doug, > > > Here=92s a page out of 43.13. It shows that Poplar is not a =91direct=92 > replacement, but very close. My airframe is all Poplar, Hickory struts, f ir > spars. > > > Gary Boothe > > Cool, Ca. > > Pietenpol > > WW Corvair Conversion, mounted > > Tail done, Fuselage on gear > > (15 ribs down=85) > ------------------------------ > > *From:* owner-pietenpol-list-server@matronics.com [mailto: > owner-pietenpol-list-server@matronics.com] *On Behalf Of *Doug Dever > *Sent:* Monday, October 05, 2009 2:16 AM > *To:* pietenpol-list@matronics.com > *Subject:* Pietenpol-List: Poplar > > > Someone stated recently that they read somewhere that the FAA stated that > Yellow Poplar was a direct replacement for Spruce. Darned if I could fin d > it in the archives. The only source I can find is AC 43.13 which states > that it is not a direct replacement due to it's slightly lower strength a nd > shock resistance. I know it's properties are similar, but If who ever sa id > this could speak up and let me know the source I'd appreciate it. Good D oug > Fir is Impossible to get locally, but I found a source locally for for > beautiful poplar (which isn't a poplar at all, it's a tulip tree. Go > figure) I'd feel a lot more comfortable using it if I could find some > supporting documentation. > > Doug Dever > In beautiful Stow Ohio > > ------------------------------ > > Hotmail: PowerfuL/go/171222986/direct/01/' target='_new'>Get it now. > > * * > > * * > > *http://www.matronics.com/Navigator?Pietenpol-List* > > *http://forums.matronics.com* > > *http://www.matronics.com/contribution* > > * * > > * * > > * * > > ** > > ** > > ** > > *http://www.matronics.com/Navigator?Pietenpol-List* > > ** > > ** > > *http://forums.matronics.com* > > ** > > ** > > *http://www.matronics.com/contribution* > > * * > > > * > =========== =========== =========== =========== > * > >


    Message 2


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    Time: 04:43:55 AM PST US
    From: "Jack" <jack@textors.com>
    Subject: Google Images
    All, Just a reminder, Google Images is a fantastic resource, when you are bored just search for pietenpol air camper. Jack www.textors.com


    Message 3


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    Time: 04:44:05 AM PST US
    From: "Jack" <jack@textors.com>
    Subject: Tom Brown
    Anybody have Tom Brown's contact info? Thanks, Jack www.textors.com


    Message 4


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    Time: 05:24:30 AM PST US
    From: "Douwe Blumberg" <douweblumberg@earthlink.net>
    Subject: tailwheel springs
    One more thing... There was some talk (writing??) awhile back about not using tailwheel springs and it set me to thinking. What would happen if one didn't use springs, just straight cables? Obviously, bumps and jerks will be transmitted directly to the rudder bar, which is about the only downside I can see. Seems like you'd get rid of some potential uncontrolled movement back there without springs, and you'd save a few ounces. In you flyer's experiences, how bad can the bumps and jerks be from the tailwheel, and what do you think of this idea? Thanks Douwe, ps: finished windscreens, now doing leather cockpit coaming, which is very rewarding. Got the Red Baron thing going!!


    Message 5


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    Time: 05:43:32 AM PST US
    From: "Douwe Blumberg" <douweblumberg@earthlink.net>
    Subject: control cable exit holes
    I am looking at where my control cables exit the fuselage and run back to the "flippers". Most people seem to glue some leather patches over them, but I was wondering... The slits I made in the fuse covering were pretty accurate, Can I simply leave the slits as they are? or will they gradually tear and enlarge in the slipstream? Douwe


    Message 6


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    Time: 05:54:22 AM PST US
    From: "Scott Knowlton " <flyingscott_k@hotmail.com>
    Subject: Re: tailwheel springs
    Douwe, I can't comment on the actual stress or hardship on the rudder assembly or tailwheel that would result from having no springs but I can speak as a tailwheel instructor about their importance. With such a long moment between main landing gear and the tailwheel of a conventional gear airplane you really don't "steer" a tailwheel aircraft as much as "nudge" the tail in the opposite direction you want the nose of the aircraft to point. That is accomplished by a series of gentle rudder peddal "jabs" in the direction you want the nose to go accompanied by some smaller jabs in the opposite direction to keep the aircraft from veering too much toward your intended course. A check and balance if you will (not meant to insult anyone on the list who has a bunch of tailwheel experience but rather to help the prolific builders who haven't flown much with the little wheel on the back). The springs do a lot to dampen a pilot's nudges both in the direction they want to go as well as their offsetting nudges in the opposite. A tailwheel that was hard cabled without springs may allow ease of taxiing at very slow speeds but would be very difficult to use on a take off or landing rollout where the "dance" of light jabs left and right are required. The amplitude of these control inputs and their frequency change with increasing or descreasing ground speed making it just about humanly impossible for a pilot to keep up with direct cable linkages. Compare it to a bounce recovery where an inexperienced student attempts to recover by pushing forward on the stick only to make his or her problems worse by chasing the resulting porpose. I also think you would probably encounter greater wear in your tailwheel tire and assembly if it were not dampened with springs which would necessitate a bigger and more robust tailwheel negating any weight benefits of having no springs. My long winded opinion only. Scott Knowlton -----Original Message----- From: Douwe Blumberg <douweblumberg@earthlink.net> Subject: Pietenpol-List: tailwheel springs One more thing... There was some talk (writing??) awhile back about not using tailwheel springs and it set me to thinking. What would happen if one didn't use springs, just straight cables? Obviously, bumps and jerks will be transmitted directly to the rudder bar, which is about the only downside I can see. Seems like you'd get rid of some potential uncontrolled movement back there without springs, and you'd save a few ounces. In you flyer's experiences, how bad can the bumps and jerks be from the tailwheel, and what do you think of this idea? Thanks Douwe, ps: finished windscreens, now doing leather cockpit coaming, which is very rewarding. Got the Red Baron thing going!!


    Message 7


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    Time: 07:21:07 AM PST US
    From: Doug Dever <chiefpepperhead@hotmail.com>
    Subject: tailwheel springs
    Douwe=2C All the sonex guys use a direct linkage. No springs. This way you don't ne ed differential braking. Doug Dever In beautiful Stow Ohio > From: douweblumberg@earthlink.net > To: pietenpol-list@matronics.com > Subject: Pietenpol-List: tailwheel springs > Date: Wed=2C 7 Oct 2009 08:24:54 -0400 > thlink.net> > > One more thing... > > There was some talk (writing??) awhile back about not using tailwheel > springs and it set me to thinking. What would happen if one didn't use > springs=2C just straight cables? > > Obviously=2C bumps and jerks will be transmitted directly to the rudder b ar=2C > which is about the only downside I can see. Seems like you'd get rid of > some potential uncontrolled movement back there without springs=2C and yo u'd > save a few ounces. > > In you flyer's experiences=2C how bad can the bumps and jerks be from the > tailwheel=2C and what do you think of this idea? > > Thanks > > Douwe=2C > > ps: finished windscreens=2C now doing leather cockpit coaming=2C which is very > rewarding. Got the Red Baron thing going!! > > =========== =========== =========== =========== > > > =0A _________________________________________________________________=0A Hotmail: Trusted email with Microsoft=92s powerful SPAM protection.=0A


    Message 8


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    Time: 07:22:47 AM PST US
    From: Doug Dever <chiefpepperhead@hotmail.com>
    Subject: control cable exit holes
    Need to be reinforced with something. leather plastic etc. Doug Dever In beautiful Stow Ohio > From: douweblumberg@earthlink.net > To: pietenpol-list@matronics.com > Subject: Pietenpol-List: control cable exit holes > Date: Wed=2C 7 Oct 2009 08:18:58 -0400 > thlink.net> > > I am looking at where my control cables exit the fuselage and run back to > the "flippers". Most people seem to glue some leather patches over them =2C > but I was wondering... > > The slits I made in the fuse covering were pretty accurate=2C Can I simpl y > leave the slits as they are? or will they gradually tear and enlarge in t he > slipstream? > > Douwe > > =========== =========== =========== =========== > > > =0A _________________________________________________________________=0A Hotmail: Trusted email with powerful SPAM protection.=0A


    Message 9


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    Time: 08:15:42 AM PST US
    From: shad bell <aviatorbell@yahoo.com>
    Subject: tailwheel springs
    I would recomend springs for tailwheel instalations.=C2- I believe that i t will greatly prolong the life of the rudder bar bushing (pivot point), an d the tailwheel cables.=C2-=C2- I have never had any problem with being out of control due to the springs stretching.=C2- A second reason for sp rings would be the fact that the distance from the rudder bar to the steeri ng arm will change ever so slightly when the t/w spring compresses (at leas t in theory) , this could possibly snap a tailwheel cable in the event of a hard landing.=C2- If anything I think a properly tensioned spring would improve ground handling. =C2- Remember: there is no such thing as squirlly airplanes, just squirlly pilot s, Shad --- On Wed, 10/7/09, Doug Dever <chiefpepperhead@hotmail.com> wrote: From: Doug Dever <chiefpepperhead@hotmail.com> Subject: RE: Pietenpol-List: tailwheel springs Douwe, All the sonex guys use a direct linkage. No springs.=C2- This way you don 't need differential braking. Doug Dever In beautiful Stow Ohio =C2- > From: douweblumberg@earthlink.net > To: pietenpol-list@matronics.com > Subject: Pietenpol-List: tailwheel springs > Date: Wed, 7 Oct 2009 08:24:54 -0400 > thlink.net> > > One more thing... > > There was some talk (writing??) awhile back about not using tailwheel > springs and it set me to thinking. What would happen if one didn't use > springs, just straight cables? > > Obviously, bumps and jerks will be transmitted directly to the rudder bar , > which is about the only downside I can see. Seems like you'd get rid of > some potential uncontrolled movement back there without springs, and you' d > save a few ounces. > > In you flyer's experiences, how bad can the bumps and jerks be from the > tailwheel, and what do you think of this idea? > > Thanks > > Douwe, > > ps: finished windscreens, now doing leather cockpit coaming, which is ver y > rewarding. Got the Red Baron thing going!! > >====================== &g=========== > > > Hotmail: Trusted email with Microsoft=99s powerful SP target='_new' >Sign up now. =0A=0A=0A


    Message 10


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    Time: 08:16:35 AM PST US
    Subject: Re: control cable exit holes
    From: Ryan Mueller <rmueller23@gmail.com>
    Douwe, The holes will most likely enlarge and tatter over time, with the cables moving back and forth through the holes , and vibrating around a bit in the slipstream. The leather patches, or whatever reinforcement you choose, can be installed at any time however, so if you want to leave them off and see how things wear I wouldn't think there would be any harm in that. Make the holes a preflight item, and if they start to enlarge then you know you need to install the patches. Ryan On Wed, Oct 7, 2009 at 7:18 AM, Douwe Blumberg <douweblumberg@earthlink.net>wrote: > douweblumberg@earthlink.net> > > I am looking at where my control cables exit the fuselage and run back to > the "flippers". Most people seem to glue some leather patches over them, > but I was wondering... > > The slits I made in the fuse covering were pretty accurate, Can I simply > leave the slits as they are? or will they gradually tear and enlarge in > the > slipstream? > > Douwe > >


    Message 11


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    Time: 08:16:53 AM PST US
    From: Mike Volckmann <mike_cfi@yahoo.com>
    Subject: Re: translating Jorge's post- #1
    Jorge,=0A=0AI appreciate your Spanish posts.- I am working on learning- Spanish and-your posts are more interesting that the stuff we work on in class.=0A-Mike Volckmann =0A=0A=0AGod is great, Beer is good, People are Crazy. Billy Currington =0A=0A=0A=0A=0A________________________________=0AF rom: jorge lizarraga <flightwood@yahoo.com>=0ATo: pietenpol-list@matronics. com=0ASent: Tue, October 6, 2009 10:53:23 PM=0ASubject: Re: Pietenpol-List: translating Jorge's post- #1=0A=0A=0Athese post is for javier in maxico co rse in spanis Im bery happi to tras late to any, one if you like guys;..... .;ok es toy en california javier deje guadalajara asia 14 anos atras en don de empese a construir- una replica 7/8 scala del nieupor- bebe aqui es tou ya con un 38% de mi pieten pol terminado recientemente estos dias acabe toda mi seccion de cola en que parte de mexico estas si es guadalajara te puedo con tactar con algunos pilotos y home builders saludos desde usa, jor ge from hanford=0A=0A--- On Mon, 10/5/09, Javier Cruz <javcr@prodigy.net.mx > wrote:=0A=0A=0A>From: Javier Cruz <javcr@prodigy.net.mx>=0A>Subject: Re: Pietenpol-List: translating Jorge's post- #1=0A>To: pietenpol-list@matronic s.com=0A>Date: Monday, October 5, 2009, 5:49 PM=0A>=0A>=0A>--> Pietenpol-Li st message posted by: "Javier Cruz" <javcr@prodigy.net.mx>=0A>=0A>Hi dear P iets,- well, after to let the piet for almost two years now i have time f or work on it, i will clean all (to many dust) ,finish the fuel tank and in stall it...=0A>=0A>Jorge=0A>Donde estas ubicado?- yo estoy en la Ciudad d e Mexico, tengo ya algunos a=F1os trabajando en mi Pietenpol...=0A>=0A>Salu dos=0A>Javier Cruz=0A>=0A>pd. good translation Osconics.com/Navigator?Piete npol-List" target="_blank">http://www.matronics.nbsp; - - - - - - - - - -Matt matronics.com/contribution" ========0A ==================


    Message 12


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    Time: 08:18:38 AM PST US
    From: Doug Dever <chiefpepperhead@hotmail.com>
    Subject: tailwheel springs
    Scott=2C Not to be contradictory. (you have more tg time than me.) But=2C to bring up the point that all of the Sonex TW guys use direct (no spring) steering and virtually none have differential braking. With several hundred flying =2C everyone says it works great and is the easiest taildragger to fly. No w I do know that there will be days that nothing will help except for the w heel on the other end. I landed a C210 once in a 38kt 80deg xwind and I'm glad I was flying a 210 and not a 180. There were days we counld not even taxi the 180 as the wind would spin it around with both brakes locked! But I digress. My question is would you really need the jabs on the rudder if the tw was direct steer? negating=2C of course=2C the senario I just desc ribed Doug Dever In beautiful Stow Ohio > From: flyingscott_k@hotmail.com > To: douweblumberg@earthlink.net=3B pietenpol-list@matronics.com > Date: Wed=2C 7 Oct 2009 12:48:07 +0000 > Subject: Re: Pietenpol-List: tailwheel springs > tmail.com> > > Douwe=2C > > I can't comment on the actual stress or hardship on the rudder assembly o r tailwheel that would result from having no springs but I can speak as a t ailwheel instructor about their importance. > > With such a long moment between main landing gear and the tailwheel of a conventional gear airplane you really don't "steer" a tailwheel aircraft as much as "nudge" the tail in the opposite direction you want the nose of th e aircraft to point. That is accomplished by a series of gentle rudder pedd al "jabs" in the direction you want the nose to go accompanied by some smal ler jabs in the opposite direction to keep the aircraft from veering too mu ch toward your intended course. A check and balance if you will (not meant to insult anyone on the list who has a bunch of tailwheel experience but ra ther to help the prolific builders who haven't flown much with the little w heel on the back). > > The springs do a lot to dampen a pilot's nudges both in the direction the y want to go as well as their offsetting nudges in the opposite. A tailwhee l that was hard cabled without springs may allow ease of taxiing at very sl ow speeds but would be very difficult to use on a take off or landing rollo ut where the "dance" of light jabs left and right are required. The amplitu de of these control inputs and their frequency change with increasing or de screasing ground speed making it just about humanly impossible for a pilot to keep up with direct cable linkages. Compare it to a bounce recovery wher e an inexperienced student attempts to recover by pushing forward on the st ick only to make his or her problems worse by chasing the resulting porpose . > I also think you would probably encounter greater wear in your tailwheel tire and assembly if it were not dampened with springs which would necessit ate a bigger and more robust tailwheel negating any weight benefits of havi ng no springs. My long winded opinion only. > Scott Knowlton > > -----Original Message----- > From: Douwe Blumberg <douweblumberg@earthlink.net> > Date: Wed=2C 7 Oct 2009 12:24:54 > To: <pietenpol-list@matronics.com> > Subject: Pietenpol-List: tailwheel springs > thlink.net> > > One more thing... > > There was some talk (writing??) awhile back about not using tailwheel > springs and it set me to thinking. What would happen if one didn't use > springs=2C just straight cables? > > Obviously=2C bumps and jerks will be transmitted directly to the rudder b ar=2C > which is about the only downside I can see. Seems like you'd get rid of > some potential uncontrolled movement back there without springs=2C and yo u'd > save a few ounces. > > In you flyer's experiences=2C how bad can the bumps and jerks be from the > tailwheel=2C and what do you think of this idea? > > Thanks > > Douwe=2C > > ps: finished windscreens=2C now doing leather cockpit coaming=2C which is very > rewarding. Got the Red Baron thing going!! > > > > =========== =========== =========== =========== > > > =0A _________________________________________________________________=0A Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.=0A


    Message 13


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    Time: 08:44:27 AM PST US
    Subject: Re: Piets near my travels
    From: Ken Howe <ken@cooper-mtn.com>
    John, I'm on the west side of Portland between Beaverton and Tigard. Where in the PDX area will you be? I wouldn't have much to show you on my project - a rib jig and a couple ribs. Have you made contact with anyone else in this area? --Ken On Mon, 5 Oct 2009 16:11:39 EDT, AMsafetyC@aol.com wrote: I will be arriving Portland Oregon Monday 10/12 leaving 10/14 evening for Sacramento Ca for one 2 nights traveling by car to and from Stockton Ca then out on Friday morning Sacramento to Baltimore. I would enjoy visiting Piets in process building and or flying Piets for meet greet photos and brew, if anyone is interested please advise. Thanks John Junior Ambassador and Special Assistant to Ambassador and Secretary of Piet, Jim Markle In a message dated 10/5/2009 3:44:33 P.M. Eastern Daylight Time, Markle I'm in Livermore this week....any Piets in the area? I was hoping to get up to see the gang in the Sacramento area but may not have time for that....actually working a couple blocks from the Livermore Municipal Airport...looks like a few interesting airplanes there. Anyway, anyone in the area? Jim ========================= Use the ties Day ================================================ - MATRONICS WEB FORUMS ================================================ - List Contribution Web Site sp; ==================================================


    Message 14


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    Time: 08:44:27 AM PST US
    From: Oscar Zuniga <taildrags@hotmail.com>
    Subject: tailwheel springs
    I vote for springs. I've even gotten advice to go a step further and not run the tailwheel steering cables taut, but to leave them a little loose or slack in order to provide just a bit less reaction while dancing on the rudder pedals. The springs provide some damping of the dance and a lower tension (or slack) in the cables would also remove some of the instant reaction. When I first taxied 41CC I was amazed at how sensitive it was to steering inputs on the concrete apron, and how precisely I could steer it around the ramp without use of the brakes. After actually flying it a while, I've come to wish that I could decouple the tailwheel from the rudder a bit more and I may try some softer springs or maybe back off of the cable tension a bit. Sometimes the nose veers a bit due to the tailwheel response when you only meant to use rudder. Hard to explain until you go fly and taxi your airplane, but in any case I'd stay with the springs for sure. Oscar Zuniga Air Camper NX41CC San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net


    Message 15


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    Time: 09:19:10 AM PST US
    Subject: Re: tailwheel springs
    From: Ken Chambers <ken.riffic@gmail.com>
    Has anyone thought of putting the springs somewhere closer to the rudder bar? Might make weight and balance a little easier, with a couple pounds moved forward. I haven't got to the point of routing cables so I have no idea if there's any room for them inside the fuselage. On Wed, Oct 7, 2009 at 10:41 AM, Oscar Zuniga <taildrags@hotmail.com> wrote: > > > I vote for springs. I've even gotten advice to go a step > further and not run the tailwheel steering cables taut, > but to leave them a little loose or slack in order to > provide just a bit less reaction while dancing on the > rudder pedals. The springs provide some damping of the > dance and a lower tension (or slack) in the cables would > also remove some of the instant reaction. > > When I first taxied 41CC I was amazed at how sensitive it > was to steering inputs on the concrete apron, and how > precisely I could steer it around the ramp without use of > the brakes. After actually flying it a while, I've come > to wish that I could decouple the tailwheel from the > rudder a bit more and I may try some softer springs or > maybe back off of the cable tension a bit. Sometimes the > nose veers a bit due to the tailwheel response when > you only meant to use rudder. Hard to explain until you > go fly and taxi your airplane, but in any case I'd stay > with the springs for sure. > > Oscar Zuniga > Air Camper NX41CC > San Antonio, TX > mailto: taildrags@hotmail.com > website at http://www.flysquirrel.net > > -- Ken Chambers 512-796-1798


    Message 16


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    Time: 09:41:51 AM PST US
    From: Doug Dever <chiefpepperhead@hotmail.com>
    Subject: tailwheel springs
    Has anybody thought about not having springs? Just had to go there=3B-) Doug Dever In beautiful Stow Ohio Subject: Re: Pietenpol-List: tailwheel springs From: ken.riffic@gmail.com Has anyone thought of putting the springs somewhere closer to the rudder ba r? Might make weight and balance a little easier=2C with a couple pounds moved forward. I haven't got to the point of routing cables so I have no idea if there's a ny room for them inside the fuselage. On Wed=2C Oct 7=2C 2009 at 10:41 AM=2C Oscar Zuniga <taildrags@hotmail.com> wrote: I vote for springs. I've even gotten advice to go a step further and not run the tailwheel steering cables taut=2C but to leave them a little loose or slack in order to provide just a bit less reaction while dancing on the rudder pedals. The springs provide some damping of the dance and a lower tension (or slack) in the cables would also remove some of the instant reaction. When I first taxied 41CC I was amazed at how sensitive it was to steering inputs on the concrete apron=2C and how precisely I could steer it around the ramp without use of the brakes. After actually flying it a while=2C I've come to wish that I could decouple the tailwheel from the rudder a bit more and I may try some softer springs or maybe back off of the cable tension a bit. Sometimes the nose veers a bit due to the tailwheel response when you only meant to use rudder. Hard to explain until you go fly and taxi your airplane=2C but in any case I'd stay with the springs for sure. Oscar Zuniga Air Camper NX41CC San Antonio=2C TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List http://forums.matronics.com le=2C List Admin. ="_blank">http://www.matronics.com/contribution -- Ken Chambers 512-796-1798 =0A _________________________________________________________________=0A Hotmail: Powerful Free email with security by Microsoft.=0A


    Message 17


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    Time: 11:04:49 AM PST US
    From: Ross Alexander <karbath1@yahoo.ca>
    Subject: Re: Landing at Airports with Gulfstreams...
    Thank you for the reply....I will give it a try!~ Ross=0A=0A=0A=0A=0A____ ____________________________=0AFrom: Gene & Tammy <zharvey@bentoncountycabl e.net>=0ATo: pietenpol-list@matronics.com=0ASent: Tue, October 6, 2009 8:01 :26 PM=0ASubject: Re: Re: Pietenpol-List: Landing at Airports with Gulfstre ams...=0A=0A =0ARoss, I just took off the cap (I used a plastic =0Acanniste r) and slipped the cannister over the mic, with the small hole I drilled =0Ain line with the mic. I was then able to slip a foam mic cover over the =0Acannister. Everyone reported good audio. =0AI should have mentioned t hat I used coflex (stuff =0Athat is used by nurses to secure a bandage), to wrap the mic in before I put the =0Acannister on. You can buy it at any d rug store. The colfax keep the =0Acannister from slipping off.=0AGene=0A =0A----- Original Message ----- =0A>From: Ross Alexander =0A>To: pietenpol- list@matronics.com =0A>Sent: Monday, October 05, 2009 7:43 =0A> PM=0A>Subj ect: Re: Re: Pietenpol-List: Landing =0A> at Airports with Gulfstreams... =0A>=0A>=0A>Can you describe this a little further? How did you attach =0A> the cannister to the mike?=0A>=0A>Ross =0A> in Orangeville, Ontario, Canada 85 hp Piet=0A>=0A>=0A________________________________=0A From: Gene & Tammy <zharvey@bentoncountycable.net>=0A>To: pietenpol-list@matronics.co m=0A>Sent: Sunday, October 4, 2009 7:29:10 =0A> PM=0A>Subject: Re: Re: =0A > Pietenpol-List: Landing at Airports with Gulfstreams...=0A>=0A> > =0A>Sp eaking of radios.....A while back, when I was =0A> having problems being u nderstood on the radio because of all the wind noise, =0A> someone on this list suggested I put a 35mm film canister, with a small hole, =0A> over t he mike. I'm here to tell you it works great! Thanks to whom =0A> ever p assed on that info to me.=0A>Gene =0A>N502R =0A> =0A>httt; http://www.matr onics.com/contrib================0A>=0A>=0A> =0A________________________________=0A The new Internet Explorer=AE 8 - Fas ter, safer, easier. Optimized for Yahoo! Get it Now for =0A> Free! =0A>=0A >=0A>href="http://www.matronics.com/Navigator?Pietenpol-List">http://www. matronics.com/Navigator?Pietenpol-List=0A>href="http://forums.matronics.c om">http://forums.matronics.com=0A>href="http://www.matronics.com/contrib ution">http://www.matronics.com/c =0A________________________________=0A > =============0A=0A=0A ________________________ __________________________________________=0ABe smarter than spam. See how smart SpamGuard is at giving junk email the boot with the All-new Yahoo! Ma il. Click on Options in Mail and switch to New Mail today or register for free at http://mail.yahoo.ca


    Message 18


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    Time: 11:38:36 AM PST US
    From: jack@textors.com
    Subject: Spring Gear
    --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found ---


    Message 19


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    Time: 11:56:39 AM PST US
    Subject: Re: Spring Gear
    From: "K5YAC" <hangar10@cox.net>
    That probably translates into several inches of travel at the wheels, plus you can add the compression of the spring to that 1 3/4". -------- Mark - working on wings Read this topic online here: http://forums.matronics.com/viewtopic.php?p=266965#266965


    Message 20


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    Time: 12:01:41 PM PST US
    Subject: Re: Spring Gear
    From: "K5YAC" <hangar10@cox.net>
    Never mind... I see that 1 3/4" IS the amount of compression on the spring. I still wonder how much travel that translates to... surely much more than 1 3/4". -------- Mark - working on wings Read this topic online here: http://forums.matronics.com/viewtopic.php?p=266966#266966


    Message 21


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    Time: 12:20:19 PM PST US
    From: Ben Charvet <bcharvet@bellsouth.net>
    Subject: Re: tailwheel springs
    If you were to put the springs in front, they would be right next to your ankles, and you could get pinched. We are talking ounces here, not pounds. The springs are usually attached to the cables by a short piece of chain, to allow for adjustments. This is easily done at the rear of the airplane. Ben Ken Chambers wrote: > > Has anyone thought of putting the springs somewhere closer to the > rudder bar? > > Might make weight and balance a little easier, with a couple pounds > moved forward. > > I haven't got to the point of routing cables so I have no idea if > there's any room for them inside the fuselage. > >


    Message 22


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    Time: 12:20:19 PM PST US
    From: Dan Yocum <yocum@fnal.gov>
    Subject: Re: control cable exit holes
    Douwe, Indeed, the holes will rip and tatter. See the following: http://5n429glenoak.homelinux.net/gallery/N8031/img_2580 and a few pictures onward from there... Which leads to my follow-on question since I have no fabric experience yet - how does one glue on leather reinforcment patches? Superglue? Epoxy? How does one prepare the fabric? Thanks, Dan Ryan Mueller wrote: > Douwe, > > The holes will most likely enlarge and tatter over time, with the > cables moving back and forth through the holes , and vibrating around a > bit in the slipstream. The leather patches, or whatever reinforcement > you choose, can be installed at any time however, so if you want to > leave them off and see how things wear I wouldn't think there would be > any harm in that. Make the holes a preflight item, and if they start to > enlarge then you know you need to install the patches. > > Ryan > > On Wed, Oct 7, 2009 at 7:18 AM, Douwe Blumberg > <douweblumberg@earthlink.net <mailto:douweblumberg@earthlink.net>> wrote: > > <douweblumberg@earthlink.net <mailto:douweblumberg@earthlink.net>> > > I am looking at where my control cables exit the fuselage and run > back to > the "flippers". Most people seem to glue some leather patches over > them, > but I was wondering... > > The slits I made in the fuse covering were pretty accurate, Can I > simply > leave the slits as they are? or will they gradually tear and > enlarge in the > slipstream? > > Douwe -- Dan Yocum Fermilab 630.840.6509 yocum@fnal.gov, http://fermigrid.fnal.gov Fermilab. Just zeros and ones.


    Message 23


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    Time: 12:23:35 PM PST US
    From: Ben Charvet <bcharvet@bellsouth.net>
    Subject: Re: tailwheel springs
    When I was learning to fly my Baby Ace, I intentionally loosened the cables/springs to the tailwheel to make it more forgiving on landing. If you are landing in any type of cross-wind the rudder will most likely be deflected to one side as you touch down, and if the wheel had no slack or springs it would tend to throw you in the weeds, and then you really get to dance on the rudder pedals. Just my $.02 Ben Charvet Douwe Blumberg wrote: > > One more thing... > > There was some talk (writing??) awhile back about not using tailwheel > springs and it set me to thinking. What would happen if one didn't use > springs, just straight cables? > > Obviously, bumps and jerks will be transmitted directly to the rudder bar, > which is about the only downside I can see. Seems like you'd get rid of > some potential uncontrolled movement back there without springs, and you'd > save a few ounces. > > In you flyer's experiences, how bad can the bumps and jerks be from the > tailwheel, and what do you think of this idea? > > Thanks > > Douwe, > > ps: finished windscreens, now doing leather cockpit coaming, which is very > rewarding. Got the Red Baron thing going!! > > > _


    Message 24


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    Time: 01:21:28 PM PST US
    From: Doug Dever <chiefpepperhead@hotmail.com>
    Subject: tailwheel springs
    I disagree=2C but my personal experience is only with an ultralight with di rect steering. No problems. There are=2C however several hundred Sonexs f lying with direct steering. Mine will be direct steer=2C but hey=2C I only have a couple hundred hrs t g time. Most of it ultralight. Doug Dever In beautiful Stow Ohio > Date: Wed=2C 7 Oct 2009 15:23:09 -0400 > From: bcharvet@bellsouth.net > To: pietenpol-list@matronics.com > Subject: Re: Pietenpol-List: tailwheel springs > > > > When I was learning to fly my Baby Ace=2C I intentionally loosened the > cables/springs to the tailwheel to make it more forgiving on landing. > If you are landing in any type of cross-wind the rudder will most likely > be deflected to one side as you touch down=2C and if the wheel had no > slack or springs it would tend to throw you in the weeds=2C and then you > really get to dance on the rudder pedals. Just my $.02 > > Ben Charvet > > Douwe Blumberg wrote: arthlink.net> > > > > One more thing... > > > > There was some talk (writing??) awhile back about not using tailwheel > > springs and it set me to thinking. What would happen if one didn't use > > springs=2C just straight cables? > > > > Obviously=2C bumps and jerks will be transmitted directly to the rudder bar=2C > > which is about the only downside I can see. Seems like you'd get rid of > > some potential uncontrolled movement back there without springs=2C and you'd > > save a few ounces. > > > > In you flyer's experiences=2C how bad can the bumps and jerks be from t he > > tailwheel=2C and what do you think of this idea? > > > > Thanks > > > > Douwe=2C > > > > ps: finished windscreens=2C now doing leather cockpit coaming=2C which is very > > rewarding. Got the Red Baron thing going!! > > > > > > _ > > =========== =========== =========== =========== > > > =0A _________________________________________________________________=0A Hotmail: Free=2C trusted and rich email service.=0A


    Message 25


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    Time: 01:53:58 PM PST US
    From: Oscar Zuniga <taildrags@hotmail.com>
    Subject: control cable exit holes
    Dan; I salvaged a discarded leather shoe, cut it into patches with pinking shears, and attached them to the fabric with Weldwood Contact Cement after cleaning the fabric with soap and water. Oscar Zuniga Air Camper NX41CC San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net


    Message 26


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    Time: 02:11:04 PM PST US
    Subject: Spring Gear
    From: "Bill Church" <eng@canadianrogers.com>
    Jack, The required length of the slot is dependant on the amount of travel you will want/need. The amount of travel you will actually get is dependant on the weight of the plane, how hard you "land" and the specifics of the actual springs you use. That's a lot of variables! The example provided in Tony's book is likely for a specific plane (although it could easily apply to many of a similar size/configuration). It may, or may not apply to the Pietenpol. To make life easier, since we're talking about Pietenpols, why don't we refer to a couple of drawings that apply specifically to Pietenpols. The first is a drawing that came from the old BPA Newsletters, and was drawn in 1984 by Frank Pavliga Sr, I believe. In this drawing, the slot is 2 3/4" long. http://www.mykitplane.com/Planes/photoDisplay.cfm?PhotoName=lndg_gear_s p ring.jpg&PhotoID 09 The second drawing is a little more recent (2005), and was done by Hans van der Voort, as built on his award-winning Piet. In this arrangement, the slot is 2 1/2" long. http://www.mykitplane.com/Planes/filesList2.cfm?AlbumID=75 So it looks like the slot probably should be longer for use on the Piet. I think either of these arrangements will work well for the Piet. At least I do not recall ever reading that anyone built to either design and was not satisfied with the performance. Personally, I'm going with the wooden Jenny-style gear, so I'll never know first hand how they perform, but if I was building the split gear, I'd go with springs rather than bungees. Bill C. ________________________________ From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of jack@textors.com Sent: Wednesday, October 07, 2009 2:30 PM Subject: Pietenpol-List: Spring Gear All, Can you assist with a question on spring gear? The attached photo is from Tony's book. He states that the slot is 1 3/4" long. Does that sound like enough travel? Thanks, Jack www.textors.com


    Message 27


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    Time: 02:42:57 PM PST US
    From: "Jack" <jack@textors.com>
    Subject: Spring Gear
    Bill, As usual, fantastic information, thanks. I too was going with the straight (do you want mine) axle but feel the split will be better for rough fields. Sorry Mike, Jack, Bill, ET AL. Not being an Engineer and not too bright.I must not fully understand the operation of the strut. It seems to me no matter the weight, bounce or spring tension, It looks like the travel will be limited the slot length. Am I messed up? Thanks! Jack www.textors.com _____ From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Bill Church Sent: Wednesday, October 07, 2009 3:04 PM Subject: RE: Pietenpol-List: Spring Gear Jack, The required length of the slot is dependant on the amount of travel you will want/need. The amount of travel you will actually get is dependant on the weight of the plane, how hard you "land" and the specifics of the actual springs you use. That's a lot of variables! The example provided in Tony's book is likely for a specific plane (although it could easily apply to many of a similar size/configuration). It may, or may not apply to the Pietenpol. To make life easier, since we're talking about Pietenpols, why don't we refer to a couple of drawings that apply specifically to Pietenpols. The first is a drawing that came from the old BPA Newsletters, and was drawn in 1984 by Frank Pavliga Sr, I believe. In this drawing, the slot is 2 3/4" long. http://www.mykitplane.com/Planes/photoDisplay.cfm?PhotoName=lndg_gear_spring .jpg <http://www.mykitplane.com/Planes/photoDisplay.cfm?PhotoName=lndg_gear_sprin g.jpg&PhotoID 09> &PhotoID 09 The second drawing is a little more recent (2005), and was done by Hans van der Voort, as built on his award-winning Piet. In this arrangement, the slot is 2 1/2" long. http://www.mykitplane.com/Planes/filesList2.cfm?AlbumID=75 So it looks like the slot probably should be longer for use on the Piet. I think either of these arrangements will work well for the Piet. At least I do not recall ever reading that anyone built to either design and was not satisfied with the performance. Personally, I'm going with the wooden Jenny-style gear, so I'll never know first hand how they perform, but if I was building the split gear, I'd go with springs rather than bungees. Bill C. _____ From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of jack@textors.com Sent: Wednesday, October 07, 2009 2:30 PM Subject: Pietenpol-List: Spring Gear All, Can you assist with a question on spring gear? The attached photo is from Tony's book. He states that the slot is 1 3/4" long. Does that sound like enough travel? Thanks, Jack www.textors.com


    Message 28


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    Time: 02:49:39 PM PST US
    Subject: Re: Spring Gear
    From: "skellytown flyer" <skellflyer1@yahoo.com>
    I guess you have probably thought of it-but why don't you just loose assemble it without the spring and move it to the ends of the slot and measure it? I'm sure you can purchase die springs in different lengths as well as many strenghts Read this topic online here: http://forums.matronics.com/viewtopic.php?p=267003#267003


    Message 29


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    Time: 03:15:03 PM PST US
    From: "Javier Cruz" <javcr@prodigy.net.mx>
    Subject: Re: the cost of building
    Very good post Oscar I am agree completely ... its not easy , but all this things are forgotten when you see the Piet on his wheels, when your neighbord cames to house for see what engine noise is coming from and look that you have a plane (really you should see his open eyes), on my own, when i put all the parts together for check i needed to take a deep breathing and i was maybe a half hour just enjoying how the piet looks... wonderfull... Now that i have time for continue building i fill better (fisical and mentally) thinking that is almost done, 90% build and 120% still for work do not archive


    Message 30


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    Time: 03:22:51 PM PST US
    From: "Javier Cruz" <javcr@prodigy.net.mx>
    Subject: Re: translating Jorge's post- #1
    Gracias Jorge, conozco algunas personas del medio en Chapala, y algunos en Mexico, Gracias Si necesitas algo de Mexico estoy a tus ordenes, vuelo seguido a US principalmente a la costa este... mi correo , para no usar esta lista en espa=F1ol es javcr@prodigy.net.mx Saludos do not archive


    Message 31


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    Time: 04:21:59 PM PST US
    From: "Mike Tunnicliffe" <zk-owl@CLEAR.NET.NZ>
    Subject: Re: Spring Gear
    Perhaps the length of travel is limited by the spring becoming coil bound, and the slot length should suit the springs used. Regards Mike T.


    Message 32


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    Time: 04:42:34 PM PST US
    Subject: Re: Spring Gear
    From: Ken Howe <ken@cooper-mtn.com>
    Some basic trig should give you the answer. Take another look at the geometry of the gear. The wheel travel up and down is not in-line with the telescoping tubes and the spring. As the the main gear leg pivots up, around the fuselage attach point, the shock tubes cause the spring to compress. It's not a 1-1 relationship because of the different lengths of the gear leg and spring leg and the angles between. Actually if I was at that stage of my project I'd probably draw it out in scale on a sheet of paper with my trusty drafting tools. --Ken On Thu, 8 Oct 2009 12:17:16 +1300, "Mike Tunnicliffe" wrote: Perhaps the length of travel is limited by the spring becoming coil bound, and the slot length should suit the springs used. Regards Mike T. color: #000000; font-size: x-small;">


    Message 33


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    Time: 05:43:25 PM PST US
    From: Jim <jimboyer@hughes.net>
    Subject: Re: Spring Gear
    Jack I made my shock struts per Bill Reweys drawing for spring struts. The slot is 2.75" long on my struts. I have not flown them yet but with 6" springs this seems like a better slot length. Get the packet of Pietenpol tips and hints direct from Bill. Jim B. Jim Boyer Santa Rosa, CA Pietenpol builder with Corvair Oct 7, 2009 11:44:15 AM, pietenpol-list@matronics.com wrote: All, Can you assist with a question on spring gear? The attached photo is from Tony's book. He states that the slot is 1 3/4" long. Does that sound like enough travel? Thanks, Jack www.textors.com


    Message 34


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    Time: 06:24:48 PM PST US
    From: Jeff Boatright <jboatri@emory.edu>
    Subject: Re: Spring Gear
    I may be off on this, probably am, but it seems to me that the space between the spring spirals add up to the entire distance that the spring can compress. If so, then that's how long the slot needs to be, right? > > >Jack I made my shock struts per Bill Reweys drawing for spring >struts. The slot is 2.75" long on my struts. I have not flown them >yet but with 6" springs this seems like a better slot length. Get >the packet of Pietenpol tips and hints direct from Bill. >Jim B. > >Jim Boyer >Santa Rosa, CA >Pietenpol builder with Corvair > >Oct 7, 2009 11:44:15 AM, pietenpol-list@matronics.com wrote: > >All, >Can you assist with a question on spring gear? The attached photo >is from Tony's book. He states that the slot is 1 3/4" long. Does >that sound like enough travel? >Thanks, >Jack >www.textors.com


    Message 35


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    Time: 06:48:39 PM PST US
    From: Jeff Boatright <jboatri@emory.edu>
    Subject: Re: control cable exit holes
    Construction contact cement, Ply-o-bond, etc. I think lots of glues will work. > > >Which leads to my follow-on question since I have no fabric >experience yet - how does one glue on leather reinforcment patches? >Superglue? Epoxy? How does one prepare the fabric?


    Message 36


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    Time: 06:56:02 PM PST US
    Subject: Spring Gear
    From: "Bill Church" <eng@canadianrogers.com>
    Very close, Jeff. You would need to add the diameter of the cross bolt that holds the spring. Since the cross bolt is already in the slot, it will need to be able to move the full compression of the spring. That will give the MINIMUM length the slot should be. Bill C. -----Original Message----- From: owner-pietenpol-list-server@matronics.com on behalf of Jeff Boatright Sent: Wed 07/10/2009 9:24 PM Subject: Re: Pietenpol-List: Spring Gear I may be off on this, probably am, but it seems to me that the space between the spring spirals add up to the entire distance that the spring can compress. If so, then that's how long the slot needs to be, right? > > >Jack I made my shock struts per Bill Reweys drawing for spring >struts. The slot is 2.75" long on my struts. I have not flown them >yet but with 6" springs this seems like a better slot length. Get >the packet of Pietenpol tips and hints direct from Bill. >Jim B. > >Jim Boyer >Santa Rosa, CA >Pietenpol builder with Corvair > >Oct 7, 2009 11:44:15 AM, pietenpol-list@matronics.com wrote: > >All, >Can you assist with a question on spring gear? The attached photo >is from Tony's book. He states that the slot is 1 3/4" long. Does >that sound like enough travel? >Thanks, >Jack >www.textors.com


    Message 37


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    Time: 08:09:06 PM PST US
    From: santiago morete <moretesantiago@yahoo.com.ar>
    Subject: one/three piece wing
    Dallas, We used this simple jig to make the 15:1-scarf.- Very easy, fast and ac curate. Saludos - Santiago -=0A=0A=0A Yahoo! Cocina=0A=0AEncontra las mejores recetas con Yahoo ! Cocina.=0A=0A=0Ahttp://ar.mujer.yahoo.com/cocina/


    Message 38


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    Time: 08:13:32 PM PST US
    From: TOM MICHELLE BRANT <tmbrant@msn.com>
    Subject: center section plywood
    I'm trying to figure out if the center section ply is supposed to be even w ith the bottom of the ribs - or offset (into the center section) by 1/8"? The plans make it look like there's an offset but I can't understand why th is would be desired. Tom B.


    Message 39


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    Time: 08:35:07 PM PST US
    From: Dan Yocum <yocum@fnal.gov>
    Subject: Re: control cable exit holes
    Oscar, Jeff, That's it? Jeez, that's just too easy! Off to Joann Fabrics I go to get some leather and contact cement. Thanks! Dan Jeff Boatright wrote: > > Construction contact cement, Ply-o-bond, etc. I think lots of glues will > work. > >> >> >> Which leads to my follow-on question since I have no fabric experience >> yet - how does one glue on leather reinforcment patches? Superglue? >> Epoxy? How does one prepare the fabric? > > > > > -- Dan Yocum Fermilab 630.840.6509 yocum@fnal.gov, http://fermigrid.fnal.gov Fermilab. Just zeros and ones.


    Message 40


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    Time: 08:48:36 PM PST US
    From: "Clif Dawson" <CDAWSON5854@shaw.ca>
    Subject: Re: Spring Gear
    Yep. When in doubt draw it out. Clif "Nothing will ever be attempted if all possible objections must first be overcome." ~ Samuel Johnson . Actually if I was at that stage of my project I'd probably draw it out in scale on a sheet of paper with my trusty drafting tools. --Ken


    Message 41


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    Time: 10:08:45 PM PST US
    From: jorge lizarraga <flightwood@yahoo.com>
    Subject: Re: 3-piece wing fairings
    these is made by wood- what cain is that like to now for used in my proye ct thanks --- On Tue, 10/6/09, TOPGUN <rmdinfo@lakefield.net> wrote: From: TOPGUN <rmdinfo@lakefield.net> Subject: Pietenpol-List: Re: 3-piece wing fairings Thanks, i can't believe i missed that one. Does anyone know what color of y ellow that is? Catdesigns wrote: > http://westcoastpiet.com/yesterday_wings.htm > > > Chris > Sacramento, CA > WestCoastPiet.com > > > --- Read this topic online here: http://forums.matronics.com/viewtopic.php?p=266840#266840 le, List Admin. =0A=0A=0A




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