Original Posted By: "Andy Garrett"
Very sorry to hear about your best friend. Had the same feelings when my dad passedaway. You may want to give his passing sometime before sell your Piet project,you could finish and fly it is in his memory, keeping both your dreams alive.If not, you may want to post some pictures of your Piet project as is here, mayhelp you sell it. People always like to see pictures.Just a thought.Keep the Dream,WF2--------Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Wing Rib Construction
Pietenpol-List: Wing Rib Construction
Pietenpol-List: Re: Wing Rib Construction
Original Posted By: "Cuy, Michael D. (GRC-LME0)[Vantage Partners, LLC]"
The strength of the joints in the plans-built rib comes almost completely fromthe gussets, due to the amount of surface area. There is some strength in theglue joint between the sticks, but not much, simply because there is not muchcontact area. I would think that the method you have described would not providemuch contact area.Additionally, I'm not sure what the advantage would be. You would have to cutand bend twice as many cap strip pieces. But more importantly, once the piecesare put into the jig and glued, you're still going to have to let the glue curefor a day before removing the rib - so your productivity will still be onerib per day.If you're really curious, build one rib each way, and then do a comparison of actualweight and strength. The traditional rib will surely be stronger, and mostlikely just a little bit heavier. The traditional rib is certainly beefy,and likely overbuilt. Some have suggested that the ribs could be built using1/4" x 3/8" capstrips instead of the 1/4" x 1/2" shown in the plans. I just stuckwith the plans. At a pace of one rib per day, they can all be built in amonth.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
The strength of the joints in the plans-built rib comes almost completely fromthe gussets, due to the amount of surface area. There is some strength in theglue joint between the sticks, but not much, simply because there is not muchcontact area. I would think that the method you have described would not providemuch contact area.Additionally, I'm not sure what the advantage would be. You would have to cutand bend twice as many cap strip pieces. But more importantly, once the piecesare put into the jig and glued, you're still going to have to let the glue curefor a day before removing the rib - so your productivity will still be onerib per day.If you're really curious, build one rib each way, and then do a comparison of actualweight and strength. The traditional rib will surely be stronger, and mostlikely just a little bit heavier. The traditional rib is certainly beefy,and likely overbuilt. Some have suggested that the ribs could be built using1/4" x 3/8" capstrips instead of the 1/4" x 1/2" shown in the plans. I just stuckwith the plans. At a pace of one rib per day, they can all be built in amonth.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Wing Rib Construction
Original Posted By: "womenfly2"
Bill's comment turned on a light bulb in my head. I have some testing to do.
--------Andy Garrett'General Purpose Creative Dude'Haysville, KansasRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Rib Construction
Bill's comment turned on a light bulb in my head. I have some testing to do.
--------Andy Garrett'General Purpose Creative Dude'Haysville, KansasRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Rib ConstructionOriginal Posted By: "Ralph"
This form of rib construction has been around for a long time ... just as strongas a gusset rib if designed correctly. No reason you cannot build a Piet riblike this, simpler too. Maybe even lighter ... ?WF2--------Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/m_ds ... __________
This form of rib construction has been around for a long time ... just as strongas a gusset rib if designed correctly. No reason you cannot build a Piet riblike this, simpler too. Maybe even lighter ... ?WF2--------Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/m_ds ... __________
Re: Pietenpol-List: Re: Wing Rib Construction
Original Posted By: "Charles N. Campbell"
Regarding the =9Csmall block=9D Ford sixes, except for the earliest ones the 200 cu. in. and all the 240 and 300 had 7 main bearings. I overhauled a 200 a number of years ago to =9Chop up=9D a 1960 Falcon. There is an amazing difference between the 85 hp rated 144 cu. in. and the 120 hp rated 200 cu. in. engine in a small car. They do not have a very large rear main bearing.Ralph________________________________________________________________________________Date: Tue, 30 Jun 2015 10:08:13 -0400Subject: Re: Pietenpol-List: Re: Wing Rib Construction
Regarding the =9Csmall block=9D Ford sixes, except for the earliest ones the 200 cu. in. and all the 240 and 300 had 7 main bearings. I overhauled a 200 a number of years ago to =9Chop up=9D a 1960 Falcon. There is an amazing difference between the 85 hp rated 144 cu. in. and the 120 hp rated 200 cu. in. engine in a small car. They do not have a very large rear main bearing.Ralph________________________________________________________________________________Date: Tue, 30 Jun 2015 10:08:13 -0400Subject: Re: Pietenpol-List: Re: Wing Rib Construction
Pietenpol-List: Re: Wing Rib Construction
Original Posted By: "Bill Church"
Andy,I am currently on rib 25 of 30 (or 32 perhaps). I can tell you from my perspectiveyou are inventing a solution to a problem that does not exist. I can puttogether a rib in about 20 minutes (if I did not take small breaks to visit myson and wife so I do not feel guilty being in the workshop right when I get home!)I prefabbed 1,100 gussets (4 shapes) in about 4 total hours time from a sheet of24" x 48" 1/16th aircraft grade plywood. I use a table saw, a chop saw and tinsnips. They sit in 4 plastic containers marked "A" - "D"I prefabbed the 11 (x 32) rib members using a chop saw with a stop block in about3 hours total time. These are in 1 gallon zip log bags marked 0-10 (0 beingthe nose block)I use wax paper pieces under the gussets. I made about 1100 of those in aboutthe same manner as the gussets only I used a 6' straight edge and a razor knife.I can mix up a batch of Epoxy resin in three minutes.Assembly is like a an assembly line. I use a razor blade cutter to make minutetrimmings on the rib members to fit the curve of the upper and lower cap stripas I assemble each rib. Others use a sanding station. Only items 0, 1, 2 8 and10 require minute trimming to compensate for the curves. each trimming takes5 seconds.Despite what some have said, I find the wing rib construction somewhat therapeutic.I do one per evening 4 nights a week. Sorry I'm almost done.email me for any info rdewenter(at)woh.rr.com--------Bob 'Early Builder' DewenterDayton OHRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Rib Construction
Andy,I am currently on rib 25 of 30 (or 32 perhaps). I can tell you from my perspectiveyou are inventing a solution to a problem that does not exist. I can puttogether a rib in about 20 minutes (if I did not take small breaks to visit myson and wife so I do not feel guilty being in the workshop right when I get home!)I prefabbed 1,100 gussets (4 shapes) in about 4 total hours time from a sheet of24" x 48" 1/16th aircraft grade plywood. I use a table saw, a chop saw and tinsnips. They sit in 4 plastic containers marked "A" - "D"I prefabbed the 11 (x 32) rib members using a chop saw with a stop block in about3 hours total time. These are in 1 gallon zip log bags marked 0-10 (0 beingthe nose block)I use wax paper pieces under the gussets. I made about 1100 of those in aboutthe same manner as the gussets only I used a 6' straight edge and a razor knife.I can mix up a batch of Epoxy resin in three minutes.Assembly is like a an assembly line. I use a razor blade cutter to make minutetrimmings on the rib members to fit the curve of the upper and lower cap stripas I assemble each rib. Others use a sanding station. Only items 0, 1, 2 8 and10 require minute trimming to compensate for the curves. each trimming takes5 seconds.Despite what some have said, I find the wing rib construction somewhat therapeutic.I do one per evening 4 nights a week. Sorry I'm almost done.email me for any info rdewenter(at)woh.rr.com--------Bob 'Early Builder' DewenterDayton OHRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Rib Construction
Pietenpol-List: Re: Wing Rib Construction
Original Posted By: "Andy Garrett"
WF2,Three very important words in your statement: "if designed correctly"However, looking at the photos you supplied and comparing to the Pietenpol ribdesign, this method is NOT simpler.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Rib Construction
WF2,Three very important words in your statement: "if designed correctly"However, looking at the photos you supplied and comparing to the Pietenpol ribdesign, this method is NOT simpler.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Rib Construction
Re: Pietenpol-List: Re: Wing Rib Construction
Original Posted By: "Charles N. Campbell"
Bob, Thanks for the detailed break down of your procedure--very helpful. I mayvery well choose to complete the ribs as the plans indicate. It's been workingfine for decades, and it certainly doesn't need any fixing. However, at 44 yearsold, this may be the only plane I ever build. I want to responsibly embracethe 'experimental' aspect of this project. Perhaps if I keep an open mind toclever engineering at each stage of the process, I may even find an opportunityto innovate and contribute something to future builders (even if it is provingwhat doesn't work ). More than anything, I just want to enjoy the project as an exercise in creativitywhile never getting too far afield. As it is, I'm building my plane as a singleplace, 2 inches wider at the cockpit, taller dash, Sky Scout style landinggear, and a variety of other changes are being considered. Per the Pietenpolwebsite, I think that they would prefer that I not even call it a 'Pietenpol'.(They actually emphasize that point.) Perhaps I will call it a 'Piet InspiredAirplane'Thanks for the tips and those helpful photos. There are some details there I needto explore a bit.--------Andy Garrett'General Purpose Creative Dude'Haysville, KansasRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 30 Jun 2015 13:14:25 -0400Subject: Re: Pietenpol-List: Re: Wing Rib Construction
Bob, Thanks for the detailed break down of your procedure--very helpful. I mayvery well choose to complete the ribs as the plans indicate. It's been workingfine for decades, and it certainly doesn't need any fixing. However, at 44 yearsold, this may be the only plane I ever build. I want to responsibly embracethe 'experimental' aspect of this project. Perhaps if I keep an open mind toclever engineering at each stage of the process, I may even find an opportunityto innovate and contribute something to future builders (even if it is provingwhat doesn't work ). More than anything, I just want to enjoy the project as an exercise in creativitywhile never getting too far afield. As it is, I'm building my plane as a singleplace, 2 inches wider at the cockpit, taller dash, Sky Scout style landinggear, and a variety of other changes are being considered. Per the Pietenpolwebsite, I think that they would prefer that I not even call it a 'Pietenpol'.(They actually emphasize that point.) Perhaps I will call it a 'Piet InspiredAirplane'Thanks for the tips and those helpful photos. There are some details there I needto explore a bit.--------Andy Garrett'General Purpose Creative Dude'Haysville, KansasRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 30 Jun 2015 13:14:25 -0400Subject: Re: Pietenpol-List: Re: Wing Rib Construction
Pietenpol-List: Re: Foo Fighter 001 Pictures
Original Posted By: "Cuy, Michael D. (GRC-LME0)[Vantage Partners, LLC]"
Amazing! Nice JobRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Amazing! Nice JobRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________