Original Posted By: rod funk
Rod,There's a lot of alternate woods to sitka spruce and I've heard thatyellow poplar is approved for repairs, however I haven't seenthe wood's strength described as I have the western coniferssuch as you'll find in the west, example would be modulus of rupture,shear parallel to the grain etc. Several of these have been listedin various publications and I think you'll find one at Decosta's site.My brother in law recently commented that he was pulling a coupleof poplar trees with his tractor (that were cut off his farm) to his neighbors who had a band sawand was having them ripped up for barn doors. I asked him about theproperties of the wood he said very strong and light but he thoughtsassafras was even better having taken advantage of it's lightweight and strength to build cattle racks for a pickup trucks.I've seen several houses built of poplar and they seem strongbut they don't seem to have the nail holding ability of some otherwoods. I would be interested in a stress analysis of Poplarif anyone knows of one. I would have to see a full reportbefore I would construct a spar, I can buy the wood all daylong, clear for about $ .50 a board foot. But rememberbefore constucting out of any material get the facts froma professional source.----- Original Message -----________________________________________________________________________________
Pietenpol-List: alternate wood
Pietenpol-List: Re: alternate wood
Original Posted By:----- Original Message -----
Yes and what is your source of nothern pine?
Yes and what is your source of nothern pine?
Pietenpol-List: alternate wood
Original Posted By: GREA738(at)aol.com
Does any one have knowledge or experience with wood other than sitka? I"m wondering about yellow poplar, for instance. Rod Funk________________________________________________________________________________
Does any one have knowledge or experience with wood other than sitka? I"m wondering about yellow poplar, for instance. Rod Funk________________________________________________________________________________
Pietenpol-List: Re: alternate wood
Original Posted By: Gerald Zuhlke
Rod,Do you get Sport Aviation ? (EAA)DG________________________________________________________________________________
Rod,Do you get Sport Aviation ? (EAA)DG________________________________________________________________________________
Pietenpol-List: Re: alternate wood
Original Posted By: TJTREV(at)webtv.net (Theodore Trevorrow)
Rod,AC 43.13 1B, page 1-2, table 1-1Poplar, Yellow (Liriodendrow Tulipifera)Strength properties as compared to spruce - slightly less than spruce except in compression (crushing) and shear.Maximum permissible grain deviation (slope of grain) 1:15Remarks: Excellent working qualities. Should not be used as a direct substitute for spruce without carefully accounting for slightly reduced strength properties. Somewhat low in shock resisting capacity. Gluing satisfactory.Personal experience carving and furniture; works clean, glues well, is stable. I'm going with spruce and fir for my Scout.Hope that this helpsDG________________________________________________________________________________
Rod,AC 43.13 1B, page 1-2, table 1-1Poplar, Yellow (Liriodendrow Tulipifera)Strength properties as compared to spruce - slightly less than spruce except in compression (crushing) and shear.Maximum permissible grain deviation (slope of grain) 1:15Remarks: Excellent working qualities. Should not be used as a direct substitute for spruce without carefully accounting for slightly reduced strength properties. Somewhat low in shock resisting capacity. Gluing satisfactory.Personal experience carving and furniture; works clean, glues well, is stable. I'm going with spruce and fir for my Scout.Hope that this helpsDG________________________________________________________________________________
Pietenpol-List: Re: alternate wood
Original Posted By: Alan Swanson
Rod there is a poplar piet out there. Check the back issues of the newsletter. With the limited stresses involved with the piet I think weightis a bigger issue than strength.TED. T________________________________________________________________________________
Rod there is a poplar piet out there. Check the back issues of the newsletter. With the limited stresses involved with the piet I think weightis a bigger issue than strength.TED. T________________________________________________________________________________
> Re: alternate wood
Original Posted By: rod funk
Yes. I'm EAA 30119 Rod>From: GREA738(at)aol.com>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Wed, 11 Aug 1999 23:07:37 -0400 (EDT)>>Rod,>Do you get Sport Aviation ? (EAA)>DG>________________________________________________________________________________
Yes. I'm EAA 30119 Rod>From: GREA738(at)aol.com>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Wed, 11 Aug 1999 23:07:37 -0400 (EDT)>>Rod,>Do you get Sport Aviation ? (EAA)>DG>________________________________________________________________________________
> Re: alternate wood
Original Posted By: Earl Myers
DG Thanks for the reference to AC 43. It helps. I heard that someone built a poplar Piet. I'm wondering how that went. I can probably get poplar cheaper than sitka. Rod>From: GREA738(at)aol.com>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Wed, 11 Aug 1999 23:24:53 -0400 (EDT)>>Rod,>AC 43.13 1B, page 1-2, table 1-1>Poplar, Yellow (Liriodendrow Tulipifera)>Strength properties as compared to spruce - slightly less than spruce >except>in compression (crushing) and shear.>Maximum permissible grain deviation (slope of grain) 1:15>Remarks: Excellent working qualities. Should not be used as a direct>substitute for spruce without carefully accounting for slightly reduced>strength properties. Somewhat low in shock resisting capacity. Gluing>satisfactory.>>Personal experience carving and furniture; works clean, glues well, is>stable.>I'm going with spruce and fir for my Scout.>Hope that this helps>DG________________________________________________________________________________
DG Thanks for the reference to AC 43. It helps. I heard that someone built a poplar Piet. I'm wondering how that went. I can probably get poplar cheaper than sitka. Rod>From: GREA738(at)aol.com>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Wed, 11 Aug 1999 23:24:53 -0400 (EDT)>>Rod,>AC 43.13 1B, page 1-2, table 1-1>Poplar, Yellow (Liriodendrow Tulipifera)>Strength properties as compared to spruce - slightly less than spruce >except>in compression (crushing) and shear.>Maximum permissible grain deviation (slope of grain) 1:15>Remarks: Excellent working qualities. Should not be used as a direct>substitute for spruce without carefully accounting for slightly reduced>strength properties. Somewhat low in shock resisting capacity. Gluing>satisfactory.>>Personal experience carving and furniture; works clean, glues well, is>stable.>I'm going with spruce and fir for my Scout.>Hope that this helps>DG________________________________________________________________________________
> Re: alternate wood
Original Posted By: Leo Powning
Ted, I think you're right. Thanks. Rod>From: TJTREV(at)webtv.net (Theodore Trevorrow)>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Wed, 11 Aug 1999 22:51:25 -0500 (CDT)>> Rod there is a poplar piet out there. Check the back issues of the news>letter. With the limited stresses involved with the piet I think weight>is a bigger issue than strength.>>TED. T>________________________________________________________________________________
Ted, I think you're right. Thanks. Rod>From: TJTREV(at)webtv.net (Theodore Trevorrow)>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Wed, 11 Aug 1999 22:51:25 -0500 (CDT)>> Rod there is a poplar piet out there. Check the back issues of the news>letter. With the limited stresses involved with the piet I think weight>is a bigger issue than strength.>>TED. T>________________________________________________________________________________
Pietenpol-List: Re: alternate wood
Original Posted By: mbell1(at)columbiaenergygroup.com
Rod,Look at Sport Aviation, December 98 through April 99 for a good, five part series by Ron Alexander titled "Aircraft Building - Aircraft wood". It may help with your selection.DenisEAA 26539________________________________________________________________________________
Rod,Look at Sport Aviation, December 98 through April 99 for a good, five part series by Ron Alexander titled "Aircraft Building - Aircraft wood". It may help with your selection.DenisEAA 26539________________________________________________________________________________
Pietenpol-List: alternate wood
Original Posted By: Chad Johnson
Douglas Fir is described in the EAA Building with Wood as being stronger thanSitka, heavier and slightly stiffer. By following the plans dimensions willhave an even stronger plane than designed.Several other woods are described in this publication, but Douglas Fir is byfar the most widely available.Mike BellColumbia,SCMaiser(at)adena.byu.edu on 08/11/99 11:00:54 PMPlease respond to piet(at)byu.edu @ INTERNETcc:Subject: Pietenpol-List: alternate woodDoes any one have knowledge or experience with wood other than sitka? I"mwondering about yellow poplar, for instance. Rod Funk________________________________________________________________________________
Douglas Fir is described in the EAA Building with Wood as being stronger thanSitka, heavier and slightly stiffer. By following the plans dimensions willhave an even stronger plane than designed.Several other woods are described in this publication, but Douglas Fir is byfar the most widely available.Mike BellColumbia,SCMaiser(at)adena.byu.edu on 08/11/99 11:00:54 PMPlease respond to piet(at)byu.edu @ INTERNETcc:Subject: Pietenpol-List: alternate woodDoes any one have knowledge or experience with wood other than sitka? I"mwondering about yellow poplar, for instance. Rod Funk________________________________________________________________________________
Pietenpol-List: Re: alternate wood
Original Posted By: Earl Myers
Strait grain Hemlock is an excellent alternative. stronger that spruce and very close in streangth to weight. and much less expensive. just use same grading criteria.Craig________________________________________________________________________________
Strait grain Hemlock is an excellent alternative. stronger that spruce and very close in streangth to weight. and much less expensive. just use same grading criteria.Craig________________________________________________________________________________
> Re: alternate wood
Original Posted By: John Weikel
3 cheers, Hemlock is good stuff.Here in the northwest, we have piles of the stuff. I don't know about the supply elsewhere.I found that it's much harder to find the right grain structure in hardware store boards than fir, or spruce, but when you find some, the reward is a good strong wood that is niticably stronger than spruce, and cuts and bends much better than fir.It's a good bit harder to glue though...rough both surfaces before you glue, and keep even fingerprint oil away from the gule-ing surface.Make sure that it is Western Hemlock, and reject any pieces that are noticably lighter or ....less in make up...than average.Bob>From: CAho878935(at)aol.com>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Sat, 14 Aug 1999 23:08:47 -0400 (EDT)>>Strait grain Hemlock is an excellent alternative. stronger that spruce and>very close in streangth to weight. and much less expensive. just use same>grading criteria.>>Craig>________________________________________________________________________________
3 cheers, Hemlock is good stuff.Here in the northwest, we have piles of the stuff. I don't know about the supply elsewhere.I found that it's much harder to find the right grain structure in hardware store boards than fir, or spruce, but when you find some, the reward is a good strong wood that is niticably stronger than spruce, and cuts and bends much better than fir.It's a good bit harder to glue though...rough both surfaces before you glue, and keep even fingerprint oil away from the gule-ing surface.Make sure that it is Western Hemlock, and reject any pieces that are noticably lighter or ....less in make up...than average.Bob>From: CAho878935(at)aol.com>Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: Re: alternate wood>Date: Sat, 14 Aug 1999 23:08:47 -0400 (EDT)>>Strait grain Hemlock is an excellent alternative. stronger that spruce and>very close in streangth to weight. and much less expensive. just use same>grading criteria.>>Craig>________________________________________________________________________________
> >> alternate wood
Original Posted By: leonstefanhutks(at)webtv.net (Leon Stefan)
> >>> >>Rod,> >>There's a lot of alternate woods to sitka spruce and I've heard that> >>yellow poplar is approved for repairs, however I haven't seen> >>the wood's strength described as I have the western conifers> >>such as you'll find in the west, example would be modulus of > >rupture,> >>shear parallel to the grain etc. Several of these have been listed> >>in various publications and I think you'll find one at Decosta's > >site.> >>My brother in law recently commented that he was pulling a couple> >>of poplar trees with his tractor (that were cut off his farm)> >> to his neighbors who had a band saw> >>and was having them ripped up for barn doors. I asked him about the> >>properties of the wood he said very strong and light but he thought> >>sassafras was even better having taken advantage of it's light> >>weight and strength to build cattle racks for a pickup trucks.> >>I've seen several houses built of poplar and they seem strong> >>but they don't seem to have the nail holding ability of some other> >>woods. I would be interested in a stress analysis of Poplar> >>if anyone knows of one. I would have to see a full report> >>before I would construct a spar, I can buy the wood all day> >>long, clear for about $ .50 a board foot. But remember> >>before constucting out of any material get the facts from> >>a professional source.> >>> >>> >>> >>----- Original Message -----> >>From: rod funk > >>To: Pietenpol Discussion > >>Sent: Wednesday, August 11, 1999 10:03 PM> >>Subject: alternate wood> >>> >>> >> > Does any one have knowledge or experience with wood other than > >sitka? > >>I"m> >> > wondering about yellow poplar, for instance. Rod Funk> >> >> >> >> >> >> >>> >> >> ________________________________________________________________________________
> >>> >>Rod,> >>There's a lot of alternate woods to sitka spruce and I've heard that> >>yellow poplar is approved for repairs, however I haven't seen> >>the wood's strength described as I have the western conifers> >>such as you'll find in the west, example would be modulus of > >rupture,> >>shear parallel to the grain etc. Several of these have been listed> >>in various publications and I think you'll find one at Decosta's > >site.> >>My brother in law recently commented that he was pulling a couple> >>of poplar trees with his tractor (that were cut off his farm)> >> to his neighbors who had a band saw> >>and was having them ripped up for barn doors. I asked him about the> >>properties of the wood he said very strong and light but he thought> >>sassafras was even better having taken advantage of it's light> >>weight and strength to build cattle racks for a pickup trucks.> >>I've seen several houses built of poplar and they seem strong> >>but they don't seem to have the nail holding ability of some other> >>woods. I would be interested in a stress analysis of Poplar> >>if anyone knows of one. I would have to see a full report> >>before I would construct a spar, I can buy the wood all day> >>long, clear for about $ .50 a board foot. But remember> >>before constucting out of any material get the facts from> >>a professional source.> >>> >>> >>> >>----- Original Message -----> >>From: rod funk > >>To: Pietenpol Discussion > >>Sent: Wednesday, August 11, 1999 10:03 PM> >>Subject: alternate wood> >>> >>> >> > Does any one have knowledge or experience with wood other than > >sitka? > >>I"m> >> > wondering about yellow poplar, for instance. Rod Funk> >> >> >> >> >> >> >>> >> >> ________________________________________________________________________________