Re: Wing spars

Michael Thomas · Post by **Michael Thomas** » Thu May 02, 2019 4:45 pm

'I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome.
Regards,MIke T
'

Jan P. Hedberg · Post by **Jan P. Hedberg** » Thu May 02, 2019 6:18 pm

'Spruce or fir?
Sent from my iPad

On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome.
Regards,MIke T

'

Michael Thomas · Post by **Michael Thomas** » Thu May 02, 2019 8:48 pm

' I dont know, they were original spars i think but I have no idea which wood. I would assume spruce.

On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:

Spruce or fir?
Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome.
Regards,MIke T

'

jstreat360 · Post by **jstreat360** » Thu May 02, 2019 9:44 pm

'Mike T., Forget about the wood from Acft Spruce and Specialty. Will not meet spec. Not even close. Wicks is out of the wood business. Unable to get good grade wood anymore. Douglas Fir is the correct type wood. 10% more weight and 10% stronger than Spruce. You can try Wiebe Aircraft. They provide spars for GLAC and others. Excellent quality. Email: mark@wiebeaircraft.com Or you can contact Marc Stamsta: F-24 Wood Wing Kits - Marc Stamsta (262) 490-8451 Hartford, WI Website http://maxaero.net Marc has reversed engineered the Post War F-24. Complete wing kits including Rib jigs. Also has wing hardware at additional cost. Excellent workmanship http://maxaero.net As for Laminated spars. Steen Aerolab in Fla. May be able to make. They will need to be routed. Don’t know how that will work out for the F-24. The laminated spars are stronger and same weight. You will need to work with your IA for approval. http://www.steenaero.com JST

Jamie S. Treat A&P/IA
Aircraft Restoration & Repair, LLC
Fairchild Club DVD Editor
IAC 5, Chapter President
http://www.iac5.org
Kelly Airpark (CO15) http://www.kellyairpark.org
24201 David C. Johnson Loop
Elbert, CO 80106 Hm 303-648-0130
Cell 303-304-7937 Visit My AR&R LLC Drop Box for past and current projects: ARR Dropbox Link Quote of the Month: A pilot who doesn't have any fear probably isn't flying his plane to its maximum. - Jon McBride, Astronaut From: fairchildclub@yahoogroups.com
Sent: Thursday, May 2, 2019 8:48 PM
To: 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub]
Subject: Re: [fairchildclub] Wing spars I dont know, they were original spars i think but I have no idea which wood. I would assume spruce. On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:
Spruce or fir? Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome. Regards,MIke T

'

Michael Thomas · Post by **Michael Thomas** » Thu May 02, 2019 9:52 pm

' Jamie, thank you for the information I will check it out tomorrow
Mike T.

On Thursday, May 2, 2019, 10:44:08 PM CDT, jamietreat397@gmail.com [fairchildclub] wrote:

Mike T., Forget about the wood from Acft Spruce and Specialty. Will not meet spec. Not even close. Wicks is out of the wood business. Unable to get good grade wood anymore. Douglas Fir is the correct type wood. 10% more weight and 10% stronger than Spruce. You can try Wiebe Aircraft. They provide spars for GLAC and others. Excellent quality. Email: mark@wiebeaircraft.com Or you can contact Marc Stamsta: F-24 Wood Wing Kits - Marc Stamsta (262) 490-8451 Hartford, WI Website http://maxaero.net Marc has reversed engineered the Post War F-24. Complete wing kits including Rib jigs. Also has wing hardware at additional cost. Excellent workmanship http://maxaero.net As for Laminated spars. Steen Aerolab in Fla.. May be able to make. They will need to be routed. Don’t know how that will work out for the F-24. The laminated spars are stronger and same weight. You will need to work with your IA for approval. http://www.steenaero.com JST

Jamie S. Treat A&P/IA
Aircraft Restoration & Repair, LLC
Fairchild Club DVD Editor
IAC 5, Chapter President
http://www.iac5.org
Kelly Airpark (CO15) http://www.kellyairpark.org
24201 David C. Johnson Loop
Elbert, CO 80106 Hm 303-648-0130
Cell 303-304-7937 Visit My AR&R LLC Drop Box for past and current projects: [url=https://www.dropbox..com/sh/homtnbm6t2oth2w/AADI1nIEokYqQZrJsKHTSX3Qa?dl=0]ARR Dropbox Link[/url] Quote of the Month: A pilot who doesn't have any fear probably isn't flying his plane to its maximum. - Jon McBride, Astronaut From: fairchildclub@yahoogroups.com
Sent: Thursday, May 2, 2019 8:48 PM
To: 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub]
Subject: Re: [fairchildclub] Wing spars I dont know, they were original spars i think but I have no idea which wood. I would assume spruce. On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:
Spruce or fir? Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote: I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome. Regards,MIke T '

Jan P. Hedberg · Post by **Jan P. Hedberg** » Thu May 02, 2019 10:01 pm

'Originals were most likely spruce. I think finding that will be impossible now. I know of several that have been rebuilt with approved fir. A little heavier but not many other choices for a certified aircraft. Those are long pieces of wood. We don’t grow spruce like that much anymore. I think there is a mill in the Seattle Washington area that still mills long straight grained fir. Not sure of the name. I will ask around.

Sent from my iPad

On May 2, 2019, at 7:48 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I dont know, they were original spars i think but I have no idea which wood. I would assume spruce.

On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:

Spruce or fir?
Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome.
Regards,MIke T

'

Jan P. Hedberg · Post by **Jan P. Hedberg** » Thu May 02, 2019 10:06 pm

'Try: john@bigskystearman.com

Sent from my iPad

On May 2, 2019, at 7:48 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I dont know, they were original spars i think but I have no idea which wood. I would assume spruce.

On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:

Spruce or fir?
Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome.
Regards,MIke T

'

jstreat360 · Post by **jstreat360** » Thu May 02, 2019 10:16 pm

'I stand corrected. Per the Mil T.O. 01-115CA-3 Page 9, parg 3. Spars are of routed design and formed of Grade A spruce to finished dimensions. I believe the new wood kits were Doug Fir. JST From: fairchildclub@yahoogroups.com
Sent: Thursday, May 2, 2019 10:07 PM
To: fairchildclub@yahoogroups.com
Subject: Re: [fairchildclub] Wing spars Try: john@bigskystearman.comSent from my iPad
On May 2, 2019, at 7:48 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I dont know, they were original spars i think but I have no idea which wood. I would assume spruce. On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:
Spruce or fir? Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote: I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome. Regards,MIke T

'

Cyle Nienaber · Post by **Cyle Nienaber** » Fri May 03, 2019 1:05 am

'

I am also interested in the Spar’s.

We are rebuilding two 24’s and the wing spars May be a bit tired.

Has anyone had success with a laminated spar?

Regards

Cyle

Sent from my iPhone

On 03 May 2019, at 06:16, jamietreat397@gmail.com [fairchildclub] wrote:

I stand corrected. Per the Mil T.O. 01-115CA-3 Page 9, parg 3. Spars are of routed design and formed of Grade A spruce to finished dimensions.

I believe the new wood kits were Doug Fir.

JST

From: fairchildclub@yahoogroups.com

Sent: Thursday, May 2, 2019 10:07 PM
To: fairchildclub@yahoogroups.com
Subject: Re: [fairchildclub] Wing spars

Try: john@bigskystearman.com

Sent from my iPad

On May 2, 2019, at 7:48 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I dont know, they were original spars i think but I have no idea which wood. I would assume spruce.

On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg'
jhed9253@aol.com [fairchildclub] wrote:

Spruce or fir?

Sent from my iPad

On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote:

I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them
and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need
for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome.

Regards,

MIke T

'

Francis Cox · Post by **Francis Cox** » Fri May 03, 2019 1:59 am

'My Argus (UC61K) S/N 43-15025 has laminated spars - perhaps it was a military requirement?
Frank Cox

On Fri, 3 May 2019 at 08:06, Cyle Nienaber cnienaber@hotmail.com [fairchildclub] wrote:

I am also interested in the Spar’s.
We are rebuilding two 24’s and the wing spars May be a bit tired.
Has anyone had success with a laminated spar?
Regards
Cyle

Sent from my iPhone
On 03 May 2019, at 06:16, jamietreat397@gmail.com [fairchildclub] wrote:

I stand corrected. Per the Mil T.O. 01-115CA-3 Page 9, parg 3. Spars are of routed design and formed of Grade A spruce to finished dimensions. I believe the new wood kits were Doug Fir. JST From: fairchildclub@yahoogroups.com
Sent: Thursday, May 2, 2019 10:07 PM
To: fairchildclub@yahoogroups.com
Subject: Re: [fairchildclub] Wing spars Try: john@bigskystearman.com Sent from my iPad
On May 2, 2019, at 7:48 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote: I dont know, they were original spars i think but I have no idea which wood. I would assume spruce. On Thursday, May 2, 2019, 7:18:56 PM CDT, 'Jan P. Hedberg' jhed9253@aol.com [fairchildclub] wrote:
Spruce or fir? Sent from my iPad
On May 2, 2019, at 3:44 PM, Michael Thomas michael_thomas8@yahoo.com [fairchildclub] wrote: I have six wing spars, 3 leading edge and 3 trailing edge spars for my 1940 fairchild 24w40. I dont know if they are good. I had a local IA look at them and he said one was, one was not and the other 4 he could not tell. He said he is not as experienced as he would like to be with wood but recommended I start with new ones. I looked at aircraft spruce and they dont appear to supply the width that I need for one of the spars in 1.5 inch thickness. Does anyone know any other suppliers of spar stock or is there an STC to allow a laminated spar. Advice? Comments? all are welcome. Regards, MIke T

'