Original Posted By: Oscar Zuniga
A couple of questions about the gussets on the wing ribs....I have the full size rib print, although I didn't use it to layout the jig. I'mcutting pieces of thin cardboard to match the gussets as shown on the full sizeprint, and then I'll use those patterns for cutting gussets from the sheetof 1.5mm birch ply we bought from AS&S. Are there any discrepancies in the gussetsas shown on the full size print? The top gusset on the rear spar upright is a rather odd shape, insofar as how itextends down the 45 degree rib member. I wonder if it would be better to justextend it out to be a full square so it might be a little stronger. Of course,then I look at it and think that if it needed to be that way then it wouldhave been drawn that way. :POtherwise I think I've found most of the posts on the other things to be carefulof: scuffing the birch before gluing, cut the gussets out so you have verticalgrain orientation. I was thinking of using weights on the gussets and leavingthe rib in the jig overnight to dry. Stapling (and removing the staples later)sounded good as well, speeding up the process, but I worry about having thegusset shift when the staple is driven in. Is this a concern?Thanks for the help,RyanRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Gusset questions
> RE: Pietenpol-List: Gusset questions
Original Posted By: "KMHeide, BA, CPO, FAAOP"
RE: Pietenpol-List: Gusset questions
Original Posted By:
Original Posted By: airlion(at)bellsouth.net
We did exactly that this past Saturday. I have video as well if you'd like to see,though after driving 36 hours and arriving home with a Piet this afternoon,I'm going for a hot tub with a bowl of chocolate ice cream and taking long nap(afterwards) first! I and my co-owner buddy picked up a nearly done Piet thispast weekend - it's the blue and cream one that was on Barnstormers these pastseveral months. The engine had not run for months. Outside temp was aboutzero, and the hangar was not heated. We checked the oil, drained the tank andgascolator, then added clean fuel. After a few pulls to limber the engine, wepulled 4-5 blades with fuel and choke on and mags off. Mags on, choke off, andit popped on pull 3, and started on pull 4. A tweak or two on the choke keptit happy for the first few seconds, then it was fine warming up open. It wasnot a big deal to prop, and others have been doing it for ages. With a balky engineof course the tale may be somehwat different.. Hope this adds some perspective. Mike D.p.s. the carb (soon to be ex-carb) is a leaky Tillotson.p.p.s. right after that run, we pulled the engine and mount and shipped it to anew owner. We're using an A-75 instead. But the Corvair sounded really nice,with a hint of a lumpy idle to give it that "do-you-think-my-cam-is-stock?" sound.We only ran it to 1500 rpm as we were freezing and it was taking it's timeto warm up in the wind and cold.--------Piet-builder-who-hopes-to-be-flying-next-summerRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
We did exactly that this past Saturday. I have video as well if you'd like to see,though after driving 36 hours and arriving home with a Piet this afternoon,I'm going for a hot tub with a bowl of chocolate ice cream and taking long nap(afterwards) first! I and my co-owner buddy picked up a nearly done Piet thispast weekend - it's the blue and cream one that was on Barnstormers these pastseveral months. The engine had not run for months. Outside temp was aboutzero, and the hangar was not heated. We checked the oil, drained the tank andgascolator, then added clean fuel. After a few pulls to limber the engine, wepulled 4-5 blades with fuel and choke on and mags off. Mags on, choke off, andit popped on pull 3, and started on pull 4. A tweak or two on the choke keptit happy for the first few seconds, then it was fine warming up open. It wasnot a big deal to prop, and others have been doing it for ages. With a balky engineof course the tale may be somehwat different.. Hope this adds some perspective. Mike D.p.s. the carb (soon to be ex-carb) is a leaky Tillotson.p.p.s. right after that run, we pulled the engine and mount and shipped it to anew owner. We're using an A-75 instead. But the Corvair sounded really nice,with a hint of a lumpy idle to give it that "do-you-think-my-cam-is-stock?" sound.We only ran it to 1500 rpm as we were freezing and it was taking it's timeto warm up in the wind and cold.--------Piet-builder-who-hopes-to-be-flying-next-summerRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: Gusset questions
Original Posted By: airlion(at)bellsouth.net
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RE: Pietenpol-List: Gusset questions
Original Posted By: "KMHeide, BA, CPO, FAAOP"
________________________________________________________________________________Date: Thu, 1 May 2008 14:01:24 -0700 (PDT)
________________________________________________________________________________Date: Thu, 1 May 2008 14:01:24 -0700 (PDT)
Pietenpol-List: Re: Hand prop a Corvair?
Original Posted By: "MikeD"
Ken:Not sure if it is common knowledge here but I thought I pass this on aboutmaking cheap clamps. Boat building like airplane building often requireslots of them.Run a piece of 2 or 3 inch PVC schedule 40 down a table saw and cut one wallthrough, then chop it in to 1 inch wide doughnuts. You can make a bucketfull of clamps for pennies.Michael________________________________________________________________________________Subject: Pietenpol-List: Re: Hand prop a Corvair?
Ken:Not sure if it is common knowledge here but I thought I pass this on aboutmaking cheap clamps. Boat building like airplane building often requireslots of them.Run a piece of 2 or 3 inch PVC schedule 40 down a table saw and cut one wallthrough, then chop it in to 1 inch wide doughnuts. You can make a bucketfull of clamps for pennies.Michael________________________________________________________________________________Subject: Pietenpol-List: Re: Hand prop a Corvair?
Re: Pietenpol-List: Gusset questions
Original Posted By: "Ryan Mueller"
Don't forget to sand the whole sheet before cutting. You'll figure out why...if you don't.Barry----- Original Message -----
Don't forget to sand the whole sheet before cutting. You'll figure out why...if you don't.Barry----- Original Message -----
Pietenpol-List: Gusset questions
Original Posted By: "KMHeide, BA, CPO, FAAOP"
Re: Pietenpol-List: Corvair items
Original Posted By: KMHeide, BA, CPO, FAAOP
Ken:For Corvair parts:Not the only source but the certainly the most comprehensive and reliableClark's:http://www.corvair.com/user-cgi/mainand a few more:http://www.larryscorvair.com/http://cor ... d.com/Coil switchers are actually from after market racing outfiters:http://www.msdignition.com/coil_acc_2.htm ----- Original Message -----
Ken:For Corvair parts:Not the only source but the certainly the most comprehensive and reliableClark's:http://www.corvair.com/user-cgi/mainand a few more:http://www.larryscorvair.com/http://cor ... d.com/Coil switchers are actually from after market racing outfiters:http://www.msdignition.com/coil_acc_2.htm ----- Original Message -----
> > Pietenpol-List: Gusset questions
Original Posted By: Rob Hart
> > To: pietenpol-list(at)matronics.com> >> > >> > A couple of questions about the gussets on the wing ribs....> >> > I have the full size rib print, although I didn't use it to layout > the jig. I'm cutting pieces of thin cardboard to match the gussets as > shown on the full size print, and then I'll use those patterns for > cutting gussets from the sheet of 1.5mm birch ply we bought from AS&S. > Are there any discrepancies in the gussets as shown on the full size > print?> >> > The top gusset on the rear spar upright is a rather odd shape, > insofar as how it extends down the 45 degree rib member. I wonder if > it would be better to just extend it out to be a full square so it > might be a little stronger. Of course, then I look at it and think > that if it needed to be that way then it would have been drawn that > way.
> >> > Otherwise I think I've found most of the posts on the other things > to be careful of: scuffing the birch before gluing, cut the gussets > out so you have vertical grain orientation. I was thinking of using > weights on the gussets and leaving the rib in the jig overnight to > dry. Stapling (and removing the staples later) sounded good as well, > speeding up the process, but I worry about having the gusset shift > when the staple is driven in. Is this a concern?> >> > Thanks for the help,> >> > Ryan> >> >> >> >> > Read this topic online here:> >> > http://forums.matronics.com/viewtopic.p ... 454#180454> >> >> >> >> > ===> >> >> >>>> ------------------------------------------------------------------------> Email Australia. Be part of history. Take part in Australia's first > e-mail archive with > *>>> *________________________________________________________________________________
> > To: pietenpol-list(at)matronics.com> >> > >> > A couple of questions about the gussets on the wing ribs....> >> > I have the full size rib print, although I didn't use it to layout > the jig. I'm cutting pieces of thin cardboard to match the gussets as > shown on the full size print, and then I'll use those patterns for > cutting gussets from the sheet of 1.5mm birch ply we bought from AS&S. > Are there any discrepancies in the gussets as shown on the full size > print?> >> > The top gusset on the rear spar upright is a rather odd shape, > insofar as how it extends down the 45 degree rib member. I wonder if > it would be better to just extend it out to be a full square so it > might be a little stronger. Of course, then I look at it and think > that if it needed to be that way then it would have been drawn that > way.
> >> > Otherwise I think I've found most of the posts on the other things > to be careful of: scuffing the birch before gluing, cut the gussets > out so you have vertical grain orientation. I was thinking of using > weights on the gussets and leaving the rib in the jig overnight to > dry. Stapling (and removing the staples later) sounded good as well, > speeding up the process, but I worry about having the gusset shift > when the staple is driven in. Is this a concern?> >> > Thanks for the help,> >> > Ryan> >> >> >> >> > Read this topic online here:> >> > http://forums.matronics.com/viewtopic.p ... 454#180454> >> >> >> >> > ===> >> >> >>>> ------------------------------------------------------------------------> Email Australia. Be part of history. Take part in Australia's first > e-mail archive with > *>>> *________________________________________________________________________________