Pietenpol-List: Poplar
RE: Pietenpol-List: Poplar
Original Posted By:=0A=0A=0A=0A=0A=0A=0A=0A=0Aowner-pietenpol-list-server(at)matronics.com
=0A=0A=0A =0A =0A=0A =0A=0A =0A=0A =0A=0A =0A=0A=0A=0A=0A=0A=0A=0ATom, =0A=0A =C2- =0A=0AHere are a few pics. Mine are simply=0Alaminated Hickory =0Awith no other frills. I can take some other close-ups if you want. The lift=0Astruts will also be Hickory ,=0Abut I won=99t make them until the wings are done and I can get some actual=0Ameasurements for length. I like the attachments that Douwe shows in the=0Aattachment. =0A=0A =C2- =0A=0AI know others have used spruce and combination=0Awith core materials =93 you should be fine. =0A=0A =C2- =0A=0A=0A=0AGary Boothe =0A=0ACool, Ca. =0A=0APietenpol =0A=0AWW Corvair Conversion,=0Amounted =0A=0ATail=0Adone,=C2-Fuselage=C2-on gear =0A=0A(15 ribs down) =0A=0A=0A=0A
=0A=0A=0A =0A =0A=0A =0A=0A =0A=0A =0A=0A =0A=0A=0A=0A=0A=0A=0A=0ATom, =0A=0A =C2- =0A=0AHere are a few pics. Mine are simply=0Alaminated Hickory =0Awith no other frills. I can take some other close-ups if you want. The lift=0Astruts will also be Hickory ,=0Abut I won=99t make them until the wings are done and I can get some actual=0Ameasurements for length. I like the attachments that Douwe shows in the=0Aattachment. =0A=0A =C2- =0A=0AI know others have used spruce and combination=0Awith core materials =93 you should be fine. =0A=0A =C2- =0A=0A=0A=0AGary Boothe =0A=0ACool, Ca. =0A=0APietenpol =0A=0AWW Corvair Conversion,=0Amounted =0A=0ATail=0Adone,=C2-Fuselage=C2-on gear =0A=0A(15 ribs down) =0A=0A=0A=0A
Pietenpol-List: Poplar
Original Posted By: Owen Davies
Someone stated recently that they read somewhere that the FAA stated that Yellow Poplar was a direct replacement for Spruce. Darned if I could find 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 and shock resistance. I know it's properties are similar=2C but If who ever said this could speak up and let me know the source I'd appreciate it. Good Doug Fir is Impossible to get locally=2C but I found a source locally for for beautiful poplar (which isn't a poplar at all=2C it's a tulip tree. Go figure) I'd feel a lot more comfortable using it if I could find some supporting documentation.Doug DeverIn beautiful Stow Ohio =0A_________________________________________________________________=0AHotmail: Powerful Free email with security by Microsoft.=0A________________________________________________________________________________Date: Mon, 05 Oct 2009 06:00:03 -0400
Someone stated recently that they read somewhere that the FAA stated that Yellow Poplar was a direct replacement for Spruce. Darned if I could find 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 and shock resistance. I know it's properties are similar=2C but If who ever said this could speak up and let me know the source I'd appreciate it. Good Doug Fir is Impossible to get locally=2C but I found a source locally for for beautiful poplar (which isn't a poplar at all=2C it's a tulip tree. Go figure) I'd feel a lot more comfortable using it if I could find some supporting documentation.Doug DeverIn beautiful Stow Ohio =0A_________________________________________________________________=0AHotmail: Powerful Free email with security by Microsoft.=0A________________________________________________________________________________Date: Mon, 05 Oct 2009 06:00:03 -0400
RE: Pietenpol-List: Poplar
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Doug,Here's a page out of 43.13. It shows that Poplar is not a 'direct'replacement, but very close. My airframe is all Poplar, Hickory struts, firspars.Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(15 ribs down.) _____
Doug,Here's a page out of 43.13. It shows that Poplar is not a 'direct'replacement, but very close. My airframe is all Poplar, Hickory struts, firspars.Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(15 ribs down.) _____
RE: Pietenpol-List: Poplar
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Doug,Here's a page out of 43.13. It shows that Poplar is not a 'direct'replacement, but very close. My airframe is all Poplar, Hickory struts, firspars.Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(15 ribs down.) _____
Doug,Here's a page out of 43.13. It shows that Poplar is not a 'direct'replacement, but very close. My airframe is all Poplar, Hickory struts, firspars.Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(15 ribs down.) _____
Re: Pietenpol-List: Poplar
Original Posted By: Ryan Mueller
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
RE: Pietenpol-List: Poplar
Original Posted By: gboothe5(at)comcast.net
Gary=2CI'm interested in your struts - do you have a photo? Are these the lift struts=2C cabanes=2C??? I plan on making mine of spruce with a ply core (lift=2C cabanes=2C etc).Thanks=2CTom B.
Gary=2CI'm interested in your struts - do you have a photo? Are these the lift struts=2C cabanes=2C??? I plan on making mine of spruce with a ply core (lift=2C cabanes=2C etc).Thanks=2CTom B.
RE: Pietenpol-List: Poplar
Original Posted By: owner-pietenpol-list-server(at)matronics.com
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 beHickory, but I won't make them until the wings are done and I can get someactual measurements for length. I like the attachments that Douwe shows inthe attachment.I know others have used spruce and combination with core materials - youshould be fine.Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(15 ribs down.) _____
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 beHickory, but I won't make them until the wings are done and I can get someactual measurements for length. I like the attachments that Douwe shows inthe attachment.I know others have used spruce and combination with core materials - youshould be fine.Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(15 ribs down.) _____
Pietenpol-List: Poplar
Original Posted By: Tim Willis
Re: Pietenpol-List: Poplar
Original Posted By: Ameet Savant
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
Re: Pietenpol-List: Poplar
Original Posted By: Ameet Savant
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
Re: Pietenpol-List: Poplar
Original Posted By: Ameet Savant
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
Re: Pietenpol-List: Poplar
Original Posted By: Ryan Mueller
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
RE: Pietenpol-List: Poplar
Original Posted By:> owen5819(at)comcast.net
I have heard on "The Last Original" the spruce longerons are 7/16 spruce and we all know that Mr Pietenpols last few aircraft were built with 3/4 laminated spars. I'd have to do some math=2C but 1" poplar might be a direct replacement for 3/4 spruce.Doug DeverIn beautiful Stow Ohio> Date: Mon=2C 5 Oct 2009 13:44:01 -0400
I have heard on "The Last Original" the spruce longerons are 7/16 spruce and we all know that Mr Pietenpols last few aircraft were built with 3/4 laminated spars. I'd have to do some math=2C but 1" poplar might be a direct replacement for 3/4 spruce.Doug DeverIn beautiful Stow Ohio> Date: Mon=2C 5 Oct 2009 13:44:01 -0400
Re: Pietenpol-List: Poplar
Original Posted By: ameetsavant(at)gmail.com
Thanks Ameet you were the one and that was the publication mentioned.Doug DeverIn beautiful Stow OhioDate: Mon=2C 5 Oct 2009 12:39:35 -0500Subject: Re: Pietenpol-List: Poplar
Thanks Ameet you were the one and that was the publication mentioned.Doug DeverIn beautiful Stow OhioDate: Mon=2C 5 Oct 2009 12:39:35 -0500Subject: Re: Pietenpol-List: Poplar
Re: Pietenpol-List: Poplar
Original Posted By: ameetsavant(at)gmail.com
That was what I remembered reading.Doug DeverIn beautiful Stow OhioDate: Mon=2C 5 Oct 2009 13:07:10 -0500Subject: Re: Pietenpol-List: Poplar
That was what I remembered reading.Doug DeverIn beautiful Stow OhioDate: Mon=2C 5 Oct 2009 13:07:10 -0500Subject: Re: Pietenpol-List: Poplar
RE: Pietenpol-List: Poplar
Original Posted By: "Bill Church"
RE: Pietenpol-List: Poplar
Original Posted By: eng(at)canadianrogers.com
Should have been 15/16=2C but I stand corrected at 7/8. Anyway my point was they were less than 1". Doing some SWAG engineering off the top of my head I would say that poplar would be OK.Doug DeverIn beautiful Stow OhioSubject: RE: Pietenpol-List: PoplarDate: Mon=2C 5 Oct 2009 17:50:13 -0400
Should have been 15/16=2C but I stand corrected at 7/8. Anyway my point was they were less than 1". Doing some SWAG engineering off the top of my head I would say that poplar would be OK.Doug DeverIn beautiful Stow OhioSubject: RE: Pietenpol-List: PoplarDate: Mon=2C 5 Oct 2009 17:50:13 -0400
Re: Pietenpol-List: Poplar
Original Posted By: Robert Ray
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
Re: Pietenpol-List: Poplar
Original Posted By: Robert Ray
Subject: Re: Pietenpol-List: Poplar
Subject: Re: Pietenpol-List: Poplar
Re: Pietenpol-List: Re: Poplar
Original Posted By: Robert Ray
Alright Gutterboy! Maybe this will help. I've seen this stuff but can't remember where, exactly. I'll find when the time comes.Clif Clif, Thanks for the picture! You lost me with the "rubber T section" and "the wedgies", though. You say "wedgy" and my mind goes to a completely different place! Gary Boothe________________________________________________________________________________Date: Tue, 6 Oct 2009 02:36:09 -0400Subject: Re: Pietenpol-List: Re: Poplar
Alright Gutterboy! Maybe this will help. I've seen this stuff but can't remember where, exactly. I'll find when the time comes.Clif Clif, Thanks for the picture! You lost me with the "rubber T section" and "the wedgies", though. You say "wedgy" and my mind goes to a completely different place! Gary Boothe________________________________________________________________________________Date: Tue, 6 Oct 2009 02:36:09 -0400Subject: Re: Pietenpol-List: Re: Poplar
Re: Pietenpol-List: Re: Poplar
Original Posted By: rray032003(at)gmail.com
FAA lists min of 6/inDoug DeverIn beautiful Stow OhioDate: Tue=2C 6 Oct 2009 02:36:09 -0400Subject: Re: Pietenpol-List: Re: Poplar
FAA lists min of 6/inDoug DeverIn beautiful Stow OhioDate: Tue=2C 6 Oct 2009 02:36:09 -0400Subject: Re: Pietenpol-List: Re: Poplar
> RE: Pietenpol-List: Poplar
Original Posted By:> eng(at)canadianrogers.com
And not the same thing as what's generally referred to as "Western Poplar", which i believe is actually Aspen, a significantly inferior wood.Kip GardnerOn Oct 5, 2009, at 10:35 PM, Robert Ray wrote:> Tulip tree, tulip poplar and yellow poplar are all the same tree.>> On Mon, Oct 5, 2009 at 10:33 PM, Robert Ray > wrote:> It's strength is the same it's shock resistance difference is so small> that it shouldn't be a problem, there's a test chart on the freight > harbor's> catalog where they drop a hammer weight and shock test different> woods, I don't remember the exact numbers I don't have it here with> me but the difference is like the Spruce fails when hammer is dropped> from 41 inches and the poplar fails at 40 inches.> Another advantage that is only slight is poplar is slightly more > perishable.> There is also an independent test where a person test both woods> along with pine hemlock etc and he test conclude the poplar is > stronger> than spruce, you'll have to search and find it but the web site is > out there,> I also don't think that the nail holding ability of poplar isn't > quite as good.> I have seen older houses that were built out of poplar still standing> and the newer ones blown away after a tornado come through.> Of course the older house was boxed in with diagonal boards of poplar.> Where as the new ones had particule board.>>> Russell>> On Mon, Oct 5, 2009 at 6:32 PM, Doug Dever > wrote:> Should have been 15/16, but I stand corrected at 7/8. Anyway my > point was they were less than 1". Doing some SWAG engineering off > the top of my head I would say that poplar would be OK.>>> Doug Dever> In beautiful Stow Ohio>>> Subject: RE: Pietenpol-List: Poplar> Date: Mon, 5 Oct 2009 17:50:13 -0400
And not the same thing as what's generally referred to as "Western Poplar", which i believe is actually Aspen, a significantly inferior wood.Kip GardnerOn Oct 5, 2009, at 10:35 PM, Robert Ray wrote:> Tulip tree, tulip poplar and yellow poplar are all the same tree.>> On Mon, Oct 5, 2009 at 10:33 PM, Robert Ray > wrote:> It's strength is the same it's shock resistance difference is so small> that it shouldn't be a problem, there's a test chart on the freight > harbor's> catalog where they drop a hammer weight and shock test different> woods, I don't remember the exact numbers I don't have it here with> me but the difference is like the Spruce fails when hammer is dropped> from 41 inches and the poplar fails at 40 inches.> Another advantage that is only slight is poplar is slightly more > perishable.> There is also an independent test where a person test both woods> along with pine hemlock etc and he test conclude the poplar is > stronger> than spruce, you'll have to search and find it but the web site is > out there,> I also don't think that the nail holding ability of poplar isn't > quite as good.> I have seen older houses that were built out of poplar still standing> and the newer ones blown away after a tornado come through.> Of course the older house was boxed in with diagonal boards of poplar.> Where as the new ones had particule board.>>> Russell>> On Mon, Oct 5, 2009 at 6:32 PM, Doug Dever > wrote:> Should have been 15/16, but I stand corrected at 7/8. Anyway my > point was they were less than 1". Doing some SWAG engineering off > the top of my head I would say that poplar would be OK.>>> Doug Dever> In beautiful Stow Ohio>>> Subject: RE: Pietenpol-List: Poplar> Date: Mon, 5 Oct 2009 17:50:13 -0400
Re: Pietenpol-List: Poplar;perfect
Original Posted By: Robert Ray
Subject: Re: Pietenpol-List: Poplar;perfect
Subject: Re: Pietenpol-List: Poplar;perfect
RE: Pietenpol-List: Poplar
Original Posted By:
Doug=2CHere=92s a page out of 43.13. It showsthat Poplar is not a =91direct=92 replacement=2C but very close. My airframeis all Poplar=2C Hickory struts=2C fir spars.Gary BootheCool=2C Ca.PietenpolWW Corvair Conversion=2CmountedTaildone=2C Fuselage on gear(15 ribs down=85)
Doug=2CHere=92s a page out of 43.13. It showsthat Poplar is not a =91direct=92 replacement=2C but very close. My airframeis all Poplar=2C Hickory struts=2C fir spars.Gary BootheCool=2C Ca.PietenpolWW Corvair Conversion=2CmountedTaildone=2C Fuselage on gear(15 ribs down=85)
> RE: Pietenpol-List: Poplar
Original Posted By:> eng(at)canadianrogers.com
>> RE: Pietenpol-List: Poplar
Original Posted By:>> eng(at)canadianrogers.com
=0A RE: Pietenpol-List: Poplar
Original Posted By:=0A=0A=0A=0A=0A=0A=0A=0A=0A=0Aowner-pietenpol-list-server(at)matronics.co
=0AHere=99s a page out of 43.13. It shows=0Athat Poplar is not a =98direct=99 replacement, but very close. My=0Aairframe is all Poplar, Hickory =0Astruts, fir spars. =0A=0A=C2- =0A=0A=0A=0AGary Boothe =0A=0ACool, Ca. =0A=0APietenpol =0A=0AWW Corvair Conversion, mounted =0A=0ATail done,=C2-Fuselage=C2-on gear =0A=0A(15 ribs down) =0A=0A=0A
=0AHere=99s a page out of 43.13. It shows=0Athat Poplar is not a =98direct=99 replacement, but very close. My=0Aairframe is all Poplar, Hickory =0Astruts, fir spars. =0A=0A=C2- =0A=0A=0A=0AGary Boothe =0A=0ACool, Ca. =0A=0APietenpol =0A=0AWW Corvair Conversion, mounted =0A=0ATail done,=C2-Fuselage=C2-on gear =0A=0A(15 ribs down) =0A=0A=0A
> RE: Pietenpol-List: Poplar
Original Posted By:> ** owner-pietenpol-list-server(at)matronics.com [mailto:
>> 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 Douwe> shows in the attachment.>>> I know others have used spruce and combination with core materials ' you> should be fine.>>> Gary Boothe>> Cool, Ca.>> Pietenpol>> WW Corvair Conversion, mounted>> Tail done, Fuselage on gear>> (15 ribs down=85)> ------------------------------>
>> 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 Douwe> shows in the attachment.>>> I know others have used spruce and combination with core materials ' you> should be fine.>>> Gary Boothe>> Cool, Ca.>> Pietenpol>> WW Corvair Conversion, mounted>> Tail done, Fuselage on gear>> (15 ribs down=85)> ------------------------------>
> RE: Pietenpol-List: Poplar
Original Posted By:> ** owner-pietenpol-list-server(at)matronics.com [mailto:
>> 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, fir> spars.>>> Gary Boothe>> Cool, Ca.>> Pietenpol>> WW Corvair Conversion, mounted>> Tail done, Fuselage on gear>> (15 ribs down=85)> ------------------------------>
>> 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, fir> spars.>>> Gary Boothe>> Cool, Ca.>> Pietenpol>> WW Corvair Conversion, mounted>> Tail done, Fuselage on gear>> (15 ribs down=85)> ------------------------------>