Original Posted By: Rcaprd(at)aol.com
Subject: Pietenpol-List: A65 spark plugsHowdy, Pieters-I figure as long as the cowlings are off the engine, I should pull the plugs, clean and gap them. Just never done it with aircraft plugs before. Our EAA Chapter has plug cleaning and gapping tools so no problems there, but I'm trying to debunk the lore about keeping each plug in the same position when reinstalling, or else rotating them.I have John Schwaner's Sac Sky Ranch book and it talks about rotating the plugs on 4-cyl. engines, but then seems to indicate that it should not be done on 4-cyl. engines where one mag fires all the top plugs and the other fires all the bottom ones. If I need to keep track of the plugs I will, but I figured if anybody would know about this, you Pieters would.Any comments on spark plugs?Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________
Pietenpol-List: A65 spark plugs
Re: Pietenpol-List: A65 spark plugs
Original Posted By: Matt Dralle
Subject: Re: Pietenpol-List: A65 spark plugsIn a message dated 8/6/2006 2:04:51 PM Central Standard Time, taildrags(at)hotmail.com writes:I have John Schwaner's Sac Sky Ranch book and it talks about rotating the plugs on 4-cyl. engines, but then seems to indicate that it should not be done on 4-cyl. engines where one mag fires all the top plugs and the other fires all the bottom ones. If I need to keep track of the plugs I will, but I figured if anybody would know about this, you Pieters would.Any comments on spark plugs?Oscar ZunigaOscar,Yes, the plugs should be rotated, but I don't recall the document that calls out the rotation. I think you rotate each top plug over to the next cylinder on the bottom, and so fourth for the bottom plugs. This way the plug gets a different cylinder, and a different mag.Chuck G.NX770CG________________________________________________________________________________Date: Sun, 6 Aug 2006 16:49:18 -0700
Subject: Re: Pietenpol-List: A65 spark plugsIn a message dated 8/6/2006 2:04:51 PM Central Standard Time, taildrags(at)hotmail.com writes:I have John Schwaner's Sac Sky Ranch book and it talks about rotating the plugs on 4-cyl. engines, but then seems to indicate that it should not be done on 4-cyl. engines where one mag fires all the top plugs and the other fires all the bottom ones. If I need to keep track of the plugs I will, but I figured if anybody would know about this, you Pieters would.Any comments on spark plugs?Oscar ZunigaOscar,Yes, the plugs should be rotated, but I don't recall the document that calls out the rotation. I think you rotate each top plug over to the next cylinder on the bottom, and so fourth for the bottom plugs. This way the plug gets a different cylinder, and a different mag.Chuck G.NX770CG________________________________________________________________________________Date: Sun, 6 Aug 2006 16:49:18 -0700
Pietenpol-List: A65 spark plugs
Original Posted By: "Dave Abramson"
Walt writes->Assuming you have a non certified 65Yes, I believe I do have a non-certified engine.>Get standard auto plugs at a fraction of the price.I suppose then I'd have to get adapters for the harness leads? There would have to be something to adapt the screw-on end to the auto spark plug.>go here http://www.magnetoparts.com/index.htmlLots of stuff there, Walt. Where exactly would I look for what you're indicating? Thanks for your patience and help.Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________
Walt writes->Assuming you have a non certified 65Yes, I believe I do have a non-certified engine.>Get standard auto plugs at a fraction of the price.I suppose then I'd have to get adapters for the harness leads? There would have to be something to adapt the screw-on end to the auto spark plug.>go here http://www.magnetoparts.com/index.htmlLots of stuff there, Walt. Where exactly would I look for what you're indicating? Thanks for your patience and help.Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________
Pietenpol-List: Re: Piet vs. GN-1
Original Posted By: steve(at)wotelectronics.com
SteveR wrote:> I have a GN-1, built (finished) in 1983. It has about 700 hours total time onit, about 400 of those are mine. I've also flow "true" Piets, and they fly nearlyidentical. My wing does have negative camber, and to me is visually identicalto the Piet wing.> > The wing is much higher than the Piet, which makes getting in and out much easier.However, I wonder if this doesn't slow my plane down due to the elevatorbeing trimmed down to counteract the up-pitching moment from the wing's dragbeing so far above the cg & thrustline (in addition to the up-pitching momentof the wing itself).Well, just playing devil's advocate here, but....If your wing has negative camber, which I take to mean undercamber, then its pitchingmoment is about the same as the infamous FC-10's, namely, a walloping bigdose of negative pitching moment. Since this means that the wing by itselfwants to pitch the whole airplane nose down, the increased nose up moment fromthe higher placed wing may provide a better "counterbalance" to the wing's pitchingmoment, thereby reducing the amount of downward lift required from thehorizontal tail to balance things out, thereby reducing the induced drag fromthe horizontal tail, thereby....INCREASING the cruising speed of your GN-1 !!!By a tenth of a mile per hour or so.
--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 10 Aug 2011 14:17:39 -0500
SteveR wrote:> I have a GN-1, built (finished) in 1983. It has about 700 hours total time onit, about 400 of those are mine. I've also flow "true" Piets, and they fly nearlyidentical. My wing does have negative camber, and to me is visually identicalto the Piet wing.> > The wing is much higher than the Piet, which makes getting in and out much easier.However, I wonder if this doesn't slow my plane down due to the elevatorbeing trimmed down to counteract the up-pitching moment from the wing's dragbeing so far above the cg & thrustline (in addition to the up-pitching momentof the wing itself).Well, just playing devil's advocate here, but....If your wing has negative camber, which I take to mean undercamber, then its pitchingmoment is about the same as the infamous FC-10's, namely, a walloping bigdose of negative pitching moment. Since this means that the wing by itselfwants to pitch the whole airplane nose down, the increased nose up moment fromthe higher placed wing may provide a better "counterbalance" to the wing's pitchingmoment, thereby reducing the amount of downward lift required from thehorizontal tail to balance things out, thereby reducing the induced drag fromthe horizontal tail, thereby....INCREASING the cruising speed of your GN-1 !!!By a tenth of a mile per hour or so.
--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 10 Aug 2011 14:17:39 -0500RE: Pietenpol-List: A65 spark plugs
Original Posted By: owner-pietenpol-list-server(at)matronics.com
I'm slowly replacing the Unison plugs in my A65 with Champions. TheChampions cost more but seem to last much longer and resist fouling better.Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----
I'm slowly replacing the Unison plugs in my A65 with Champions. TheChampions cost more but seem to last much longer and resist fouling better.Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----
Re: Pietenpol-List: Re: Piet vs. GN-1
Original Posted By: "Mild Bill"
OK! I'm building my Piet directly according to the plans (with a few minor changes, like aileron hinges) but, I had a full-size copy of the GN-1 wing rib before I got my Piet plans. So I built my rib jig and thus the ribs per the GN-1 wing. So, I will have a GN-1 wing on a Piet body with a Corvair engine. (What a mish-mash) Sooooo. What cabane dimensions should I use? I'm almost to that point in the building process. Chuck----- Original Message -----
OK! I'm building my Piet directly according to the plans (with a few minor changes, like aileron hinges) but, I had a full-size copy of the GN-1 wing rib before I got my Piet plans. So I built my rib jig and thus the ribs per the GN-1 wing. So, I will have a GN-1 wing on a Piet body with a Corvair engine. (What a mish-mash) Sooooo. What cabane dimensions should I use? I'm almost to that point in the building process. Chuck----- Original Message -----
> Re: Pietenpol-List: A65 spark plugs
Original Posted By: Ryan M
Re: Pietenpol-List: Jointer - Planer Do I Need It
Original Posted By: airlion
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________________________________________________________________________________Date: Thu, 11 Aug 2011 17:37:38 -0700 (PDT)
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________________________________________________________________________________Date: Thu, 11 Aug 2011 17:37:38 -0700 (PDT)
RE: Pietenpol-List: Jointer - Planer Do I Need It
Original Posted By: aircamperace(at)yahoo.com
Ryan=2C you do not need or want that. A real planer is a good thing and a very useful tool=2C but that joiner is not very useful. If you ever see an old woodworker missing a finger=2C I guarantee it was done on a joiner.GeneDate: Thu=2C 11 Aug 2011 16:30:53 -0700
Ryan=2C you do not need or want that. A real planer is a good thing and a very useful tool=2C but that joiner is not very useful. If you ever see an old woodworker missing a finger=2C I guarantee it was done on a joiner.GeneDate: Thu=2C 11 Aug 2011 16:30:53 -0700
Pietenpol-List: Re: A65 spark plugs
Original Posted By: "Don Emch"
[/quote]My 8.00x4 Cub tires are pretty good, but those 8.50x6 look like I could get into (and out of) a bunch more bean, corn, or hay fields.Thanks!Dan-- Dan YocumFermilab 630.840.6509yocum@fnal.gov, http://fermigrid.fnal.gov"I fly because it releases my mind from the tyranny of petty things."[/quote]Dan,You're gonna need a lot more than 850's to tackle the beans! I had an an emergencylanding two weekend ago due to an inflight prop failure. 45mph to a full stopin less than 40ft in those 3 1/2ft tall beans.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/img_ ... ___Subject: Pietenpol-List: Re: A65 spark plugs
[/quote]My 8.00x4 Cub tires are pretty good, but those 8.50x6 look like I could get into (and out of) a bunch more bean, corn, or hay fields.Thanks!Dan-- Dan YocumFermilab 630.840.6509yocum@fnal.gov, http://fermigrid.fnal.gov"I fly because it releases my mind from the tyranny of petty things."[/quote]Dan,You're gonna need a lot more than 850's to tackle the beans! I had an an emergencylanding two weekend ago due to an inflight prop failure. 45mph to a full stopin less than 40ft in those 3 1/2ft tall beans.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/img_ ... ___Subject: Pietenpol-List: Re: A65 spark plugs