Brodhead Pietenpol Association

Original Posted By: TGSTONE236(at)aol.com
Hey Ken,I just did a google search for leather suppliers and found a place that hada decent selection of "distressed" leather which is the look I wanted. Iseem to have deleted them from my address book and it's been a while now soI don't remember who it was.Too thin and your grommets can tear as you snug things up, too thick and itwon't form well to the compound curves. Thinner equals a smoother job.Let me ck, but I might still have enough from my purchase for you to use.Dan's article on how he did his coaming proved very helpful.Douwe________________________________________________________________________________

Original Posted By: Gardiner Mason
I think the best way is to make sure that the geometry doesn't change as the strutsmove. Sure, camber will, but if designed and built correctly, toe won't.That requires the front and back mounting points to be inline, and that line beingparallel to the centerline of the fuselage. You should be able to stick along rod through the whole mess instead of bolts front and back. Then measurethe ends of the rod (checking for sag and such) to see if it's parallel.If not, the mounting points need to be rebuilt.Then, once the landing gear Vees are mounted correctly, the tubes for the axleson the bottom of the Vees need to be lined up with each other. Determine whatpoint you want the camber line to be vertical, probably normally loaded, andput a long tube through BOTH axle tubes to keep them in line, with no toe inor toe out, and weld them to the gear Vees.It's a lot of mocking up. It can be done at any time. It might require a fairlyextensive rebuild depending on what you've got. Hopefully worst case is weldingin holes, mocking up and through drilling everything at once in place forthe best results. Measuring correctly and building outwards seems to alwaysintroduce incremental errors that keep it all from working some how.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: leather coaming

Original Posted By: "Douwe Blumberg"
Douwe. I have just bought a low time c85 to put on my Piet. Could you please send me pics of the engine and cowling on your installation? Also a picture of your panel. Obviously I have to build a motor mount. I have a Macauley metal prop 71-46 that came off my Cessna 140 with a c90 engine. I will probably have a lot of questions later on. What kind of cruise do you get?Cheers, GardinerSent from my iPadi will On Jan 30, 2014, at 10:53 AM, "Douwe Blumberg" wrote:> Hey Ken,> > I just did a google search for leather suppliers and found a place that had a decent selection of =9Cdistressed=9D leather which is the look I wanted. I seem to have deleted them from my address book and it=99s been a while now so I don=99t remember who it was.> > Too thin and your grommets can tear as you snug things up, too thick and it won=99t form well to the compound curves. Thinner equals a smoother job.> > Let me ck, but I might still have enough from my purchase for you to use.> > Dan=99s article on how he did his coaming proved very helpful.> > Douwe> > ============================================================================================================================================> ________________________________________________________________________________

Original Posted By: Gardiner Mason
Hey buddy,I'll contact you with the pics and am happy to tell you what I know. You'll love that engine/airframe combination! Don Emch leant me his enginemount jig and he'll loan it to whoever needs it. Not sure where it is now,but it would be well worth it to see if you could track it down. I addedsome sidethrust with washers which seems to have worked out well.I say leave as much crap on the engine as you can so you don't end up with astupid long nosed Piet. I left on the old heavy generator, and ran thebattery as far forward as I could and left the starter on, which is sureconvenient. My weight and balance came out good.I'm sure your prop will work, but my gut is telling me there are some betterones out there for a draggy airframe such as ours. VERY different beastthan a 140, and very different prop requirements. My C-90 is spinning a 76,same diameter as that old Ford.I've still not REALLY honed in on my exact airspeeds, but they seem aboutthis.I like to put around using little fuel and keeping things very quiet at2,000rpm. At this, I chug along around 60ish. When I'm going somewhere,I'll cruise around 2250 or 2300 which seems to bring it close to 70. 2450will get me around 75ish.She's not very fast. Going to Brodhead last year, my average groundspeedwas 60, coming back was 82.D________________________________________________________________________________Subject: Re: Pietenpol-List: Gardiner's C-85

Original Posted By: "tkreiner"
Thanks Douwe. My fuselage is 26 wide. What width is the jig and what is Dons phone number? My prop is a Mac. 71-46 metal, so probably heavier than yours. Also I have the heavier starter and generator. I am looking for aeronca exhaust stacks also. Thanks, gardinerSent from my iPadOn Feb 4, 2014, at 9:28 AM, "Douwe Blumberg" wrote:> Hey buddy,> > I=99ll contact you with the pics and am happy to tell you what I know. > > You=99ll love that engine/airframe combination! Don Emch leant me his engine mount jig and he=99ll loan it to whoever needs it. Not sure where it is now, but it would be well worth it to see if you could track it down. I added some sidethrust with washers which seems to have worked out well.> > I say leave as much crap on the engine as you can so you don=99t end up with a stupid long nosed Piet. I left on the old heavy generator, and ran the battery as far forward as I could and left the starter on, which is sure convenient. My weight and balance came out good.> > I=99m sure your prop will work, but my gut is telling me there are some better ones out there for a draggy airframe such as ours. VERY different beast than a 140, and very different prop requirements. My C-90 is spinning a 76, same diameter as that old Ford.> > I=99ve still not REALLY honed in on my exact airspeeds, but they seem about this.> > I like to put around using little fuel and keeping things very quiet at 2,000rpm. At this, I chug along around 60ish. When I=99m going somewhere, I=99ll cruise around 2250 or 2300 which seems to bring it close to 70. 2450 will get me around 75ish.> > She=99s not very fast. Going to Brodhead last year, my average groundspeed was 60, coming back was 82> > D> > > > ============================================================================================================================================> ________________________________________________________________________________Subject: Pietenpol-List: Re: Gardiner's C-85