Original Posted By: Ryan Mueller
I have a GN-1 but I think they are the same. Don't have specs for ailerons butfor the elevators up 20 deg. down max. 30. Rudder is left and right to within1" of touching the elevator edge with elevator at neutral position.--------Jon Coxwell GN-1 BuilderRecycle and preserve the planetRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 8 May 2010 07:58:03 -0500Subject: Pietenpol-List: Gardiner's Corvair issue, or how not to cool the Corvairin your Pietenpol
Pietenpol-List: Gardiner's Corvair issue, or how not to cool the Corvair
Pietenpol-List: Re: rib test, wood failure
Original Posted By: "skellytown flyer"
I have two completed ribs and I was looking through the archives to find ways totest them. Could anyone point me in the right direction?I'm sure I couldn't build a rib worse than these two. I forgot to glue the backsof some gussets on one, and I started pulling one out of the jig too soon,so I'm confident that these two will be the worst of my lot. Are there any numbers on what the rib should be able to take?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: rib test, wood failure
I have two completed ribs and I was looking through the archives to find ways totest them. Could anyone point me in the right direction?I'm sure I couldn't build a rib worse than these two. I forgot to glue the backsof some gussets on one, and I started pulling one out of the jig too soon,so I'm confident that these two will be the worst of my lot. Are there any numbers on what the rib should be able to take?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: rib test, wood failure
Original Posted By: Jeff Boatright
I'm sure you'll get some more technical answers later. but if you can tug at thegussets without them coming loose and they held their shape well after comingout.and you used good clean wood without knots or deformities I'd guess theyare pretty good.( of course unless you're wanting to test them to destructionyou have to use some judgment on how hard to pull on the gussets.there was apost a while back about a wing that had been flying for some time and the gussetspeeling off when they checked them so it would be good to do that before constructinga wing with them I'd guess. I have in the past made a master rib fora pattern and sanded the others as needed on a belt/disc sander till they werea very close match.and when I used plywood for ribs on another project I useda ball bearing pilot router bit to trim them all to the master rib after clampingthem to it. lots of ways to check them. RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 8 May 2010 10:43:40 -0400
I'm sure you'll get some more technical answers later. but if you can tug at thegussets without them coming loose and they held their shape well after comingout.and you used good clean wood without knots or deformities I'd guess theyare pretty good.( of course unless you're wanting to test them to destructionyou have to use some judgment on how hard to pull on the gussets.there was apost a while back about a wing that had been flying for some time and the gussetspeeling off when they checked them so it would be good to do that before constructinga wing with them I'd guess. I have in the past made a master rib fora pattern and sanded the others as needed on a belt/disc sander till they werea very close match.and when I used plywood for ribs on another project I useda ball bearing pilot router bit to trim them all to the master rib after clampingthem to it. lots of ways to check them. RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 8 May 2010 10:43:40 -0400
Pietenpol-List: Re: rib test, wood failure
Original Posted By: kmordecai001(at)comcast.net
The third just came out of the jig beautifully. They look great, and they're verysolid. I'm going to mock up two on some two foot spars, tack some leadingand trailing edge on and pile some weight on from a few different angles.I just bought another bingelis book, it will be here shortly. I do have a questionabout grain, though. What is the preferred direction of the grain in relationto stress? Should rings be horizontal, vertical, or it doesn't matter?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 8 May 2010 16:24:54 +0000 (UTC)
The third just came out of the jig beautifully. They look great, and they're verysolid. I'm going to mock up two on some two foot spars, tack some leadingand trailing edge on and pile some weight on from a few different angles.I just bought another bingelis book, it will be here shortly. I do have a questionabout grain, though. What is the preferred direction of the grain in relationto stress? Should rings be horizontal, vertical, or it doesn't matter?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 8 May 2010 16:24:54 +0000 (UTC)
Re: Pietenpol-List: Weight.
Original Posted By: Thomas Bernie
can anybody give me a pretty good guess as to where the center of gravity for thepilot or passenger is supposed to be in relation to the seat back? I'm workingto get the W&B figured out on the project I bought from D.J. and the fuselagehas been stretched quite a bit.I just don't know whether to use somethinglike 4 or 5 inches ahead of the bottom of the seat back as the distance for pilotor passenger weight calculations or what. hope someone can enlighten me here.RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Weight.
can anybody give me a pretty good guess as to where the center of gravity for thepilot or passenger is supposed to be in relation to the seat back? I'm workingto get the W&B figured out on the project I bought from D.J. and the fuselagehas been stretched quite a bit.I just don't know whether to use somethinglike 4 or 5 inches ahead of the bottom of the seat back as the distance for pilotor passenger weight calculations or what. hope someone can enlighten me here.RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Weight.
Re: Pietenpol-List: Weight.
Original Posted By: Ryan Mueller
Raymond,I can give you a good idea if your GN-1 is according to the plans. Beware, theweight and balance information (example) in the plans is wrong. Look in thearchives.TomGloucester, MassGN-1 N666TBGoing to the hanger next week.On May 8, 2010, at 8:40 PM, skellytown flyer wrote:> > can anybody give me a pretty good guess as to where the center of gravity forthe pilot or passenger is supposed to be in relation to the seat back? I'm workingto get the W&B figured out on the project I bought from D.J. and the fuselagehas been stretched quite a bit.I just don't know whether to use somethinglike 4 or 5 inches ahead of the bottom of the seat back as the distance forpilot or passenger weight calculations or what. hope someone can enlighten mehere. Raymond> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 140#297140> > > > > > > > > > ________________________________________________________________________________Date: Sat, 8 May 2010 19:56:47 -0500Subject: Re: Pietenpol-List: Weight.
Raymond,I can give you a good idea if your GN-1 is according to the plans. Beware, theweight and balance information (example) in the plans is wrong. Look in thearchives.TomGloucester, MassGN-1 N666TBGoing to the hanger next week.On May 8, 2010, at 8:40 PM, skellytown flyer wrote:> > can anybody give me a pretty good guess as to where the center of gravity forthe pilot or passenger is supposed to be in relation to the seat back? I'm workingto get the W&B figured out on the project I bought from D.J. and the fuselagehas been stretched quite a bit.I just don't know whether to use somethinglike 4 or 5 inches ahead of the bottom of the seat back as the distance forpilot or passenger weight calculations or what. hope someone can enlighten mehere. Raymond> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 140#297140> > > > > > > > > > ________________________________________________________________________________Date: Sat, 8 May 2010 19:56:47 -0500Subject: Re: Pietenpol-List: Weight.
Re: Pietenpol-List: Re: Weight.
Original Posted By: Thomas Bernie
Tom that is good to know.I have never figured out how to search the archives. maybethat's the reason I come up with questions that have been covered so often.ifyou would not mind visiting off list about it I'd be glad to pick your brain.but what I am trying to use is a calculator that is available on the Kansascity Dawn patrol website.I have the distances measured on my airplane usingthe firewall as a datum.as well as empty weights at the wheels and everythinglevel.if I could just get a good centerline for pilot weight.I seem to rememberreading once it would be at about a person's hip bone when sitting. that probablydepends on the reclining angle.and whether it is a normal person or someonelike me with long legs.but the figures I am coming up with sure don't lookusable.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Weight.
Tom that is good to know.I have never figured out how to search the archives. maybethat's the reason I come up with questions that have been covered so often.ifyou would not mind visiting off list about it I'd be glad to pick your brain.but what I am trying to use is a calculator that is available on the Kansascity Dawn patrol website.I have the distances measured on my airplane usingthe firewall as a datum.as well as empty weights at the wheels and everythinglevel.if I could just get a good centerline for pilot weight.I seem to rememberreading once it would be at about a person's hip bone when sitting. that probablydepends on the reclining angle.and whether it is a normal person or someonelike me with long legs.but the figures I am coming up with sure don't lookusable.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Weight.
Re: Pietenpol-List: Re: Weight.
Original Posted By: Ryan Mueller
Raymond,If the plane is built according to the plans, the moments provided are all youneed. Learn how to compute your c.g. with a pencil and a piece of paper (backwards,in your sleep) first. You have to understand it -- there is no shortcut.TomOn May 8, 2010, at 9:03 PM, skellytown flyer wrote:> > Tom that is good to know.I have never figured out how to search the archives.maybe that's the reason I come up with questions that have been covered so often.ifyou would not mind visiting off list about it I'd be glad to pick yourbrain. but what I am trying to use is a calculator that is available on the Kansascity Dawn patrol website.I have the distances measured on my airplane usingthe firewall as a datum.as well as empty weights at the wheels and everythinglevel.if I could just get a good centerline for pilot weight.I seem to rememberreading once it would be at about a person's hip bone when sitting. thatprobably depends on the reclining angle.and whether it is a normal person or someonelike me with long legs.but the figures I am coming up with sure don't lookusable.> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 144#297144> > > > > > > > > > ________________________________________________________________________________Date: Sat, 8 May 2010 21:02:54 -0500Subject: Re: Pietenpol-List: Re: Weight.
Raymond,If the plane is built according to the plans, the moments provided are all youneed. Learn how to compute your c.g. with a pencil and a piece of paper (backwards,in your sleep) first. You have to understand it -- there is no shortcut.TomOn May 8, 2010, at 9:03 PM, skellytown flyer wrote:> > Tom that is good to know.I have never figured out how to search the archives.maybe that's the reason I come up with questions that have been covered so often.ifyou would not mind visiting off list about it I'd be glad to pick yourbrain. but what I am trying to use is a calculator that is available on the Kansascity Dawn patrol website.I have the distances measured on my airplane usingthe firewall as a datum.as well as empty weights at the wheels and everythinglevel.if I could just get a good centerline for pilot weight.I seem to rememberreading once it would be at about a person's hip bone when sitting. thatprobably depends on the reclining angle.and whether it is a normal person or someonelike me with long legs.but the figures I am coming up with sure don't lookusable.> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 144#297144> > > > > > > > > > ________________________________________________________________________________Date: Sat, 8 May 2010 21:02:54 -0500Subject: Re: Pietenpol-List: Re: Weight.
RE: Pietenpol-List: Gardiner's Corvair issue, or how not to cool the Corvair
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Rick,Check out http://www.cpc-world.com/new_card_image ... jpg.That's how I did mine and it all worked out OK. I have a section on Corvaircooling under "Engine Construction" on the web site.CheersPeterWonthaggi Australiahttp://www.cpc-world.com
Rick,Check out http://www.cpc-world.com/new_card_image ... jpg.That's how I did mine and it all worked out OK. I have a section on Corvaircooling under "Engine Construction" on the web site.CheersPeterWonthaggi Australiahttp://www.cpc-world.com
Re: Pietenpol-List: Weight.
Original Posted By: helspersew(at)aol.com
Pietenpol-List: Weight.
Original Posted By: hpvs(at)southwind.net
Pietenpol-List: Re: Gardiner's Corvair issue, or how not to cool the Corvair
Original Posted By: Dan Yocum
William Wynn has put a detailed post on his site explaining exactly what happened,and how to avoid these issues: http://flycorvair.com/pietengineissue.html (http://flycorvair.com/pietengineissue.html) I highly recommend giving it a read if you are at all interested in using a Corvair,or if you are already committed to using one. Plenty of good information. Ryan> > > > Ryan, thank you for posting the link. I will be using a Corvair and the recentinformation about Gardiner's problem is excellent.Jon Coxwell--------Jon Coxwell GN-1 BuilderRecycle and preserve the planetRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 09 May 2010 21:21:20 -0500
William Wynn has put a detailed post on his site explaining exactly what happened,and how to avoid these issues: http://flycorvair.com/pietengineissue.html (http://flycorvair.com/pietengineissue.html) I highly recommend giving it a read if you are at all interested in using a Corvair,or if you are already committed to using one. Plenty of good information. Ryan> > > > Ryan, thank you for posting the link. I will be using a Corvair and the recentinformation about Gardiner's problem is excellent.Jon Coxwell--------Jon Coxwell GN-1 BuilderRecycle and preserve the planetRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 09 May 2010 21:21:20 -0500