Original Posted By: "M. Zeke Zechini"
WW clearly prefers Shell Rotella 10w-50. Sent from my iPhone On Apr 29, 2013, at 9:16 AM, "Barry Davis" wrote: A couple of my Corvair buddies are experimenting with oil in their Corvair conversions. I am wondering what most of the Pietenpol flyers are using and how often are they doing oil changes? Barry Davis NX973BP3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dnpol-List3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D>3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D________________________________________________________________________________Subject: Pietenpol-List: Piet Props
Pietenpol-List: Piet Props
Pietenpol-List: Re: Piet Props
Original Posted By: "ldmill"
An absolutely beautiful evening this evening, 5 mph winds, 75 degrees and almostno clouds. Opportunity was knocking, so I called the wife and warned her notto expect me home before, ...well, late. I was excited to take the newly completed/go-fast/shiny/fullof electronic gadgets - Sonex/Waiex for a flight(14 hours on it and counting). Got to the airport- only to find that I'd leftmy master and EFIS on and the battery was dead. Sigh... like, not even ableto take a charge dead. Roll over and bury it dead - as my 12 year old says... So, I was standing there cussing myself because I really wanted to fly - onlyto realize that I had a second airplane in the hanger that dead batteries arejust never an issue with. The old trusty Aircamper was sitting there, just waitingto spread her wings and show up the new young pup. I pulled out "Part-a-Piet", primed her, flipped the prop and the old A-75 startedon the first blade, putt-putting happily away- dependable as aways. I put my leather helmet on, and we taxied out to runway 18 in Marshalltown, fullthrottle (2500 rpm), and climbed out at about 400 ft per minute. Wow - whata difference. I've gotten used to the Jab3300 in the Waiex screaming at 3300rpm, climbing out at 1500+ ft/min. ANR headsets are an absolute requirement. It took me about 10 minutes of chaffing at the 70mph cruise speed - but then Istarted to relax and enjoy it, dropping down to about 500ft AGL. After the secondfarmer waived at me - I started checking out the freshly tilled fields andspent more time looking at the scenary and ignored the guages. I rememberedwhy I love this type of flying, the absolute simplicity and freedom. It was thebest hour long flight that I've had in a very, very long time.Keep building boys! You'll never regret your Piet, even if you pick up a new shinytoy - the old one is still a joy to fly. Mine now has 901 hours and is 27years old.Lorin MillerGN-1 N30PP Waiex N81YXColo, IowaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Piet Props
An absolutely beautiful evening this evening, 5 mph winds, 75 degrees and almostno clouds. Opportunity was knocking, so I called the wife and warned her notto expect me home before, ...well, late. I was excited to take the newly completed/go-fast/shiny/fullof electronic gadgets - Sonex/Waiex for a flight(14 hours on it and counting). Got to the airport- only to find that I'd leftmy master and EFIS on and the battery was dead. Sigh... like, not even ableto take a charge dead. Roll over and bury it dead - as my 12 year old says... So, I was standing there cussing myself because I really wanted to fly - onlyto realize that I had a second airplane in the hanger that dead batteries arejust never an issue with. The old trusty Aircamper was sitting there, just waitingto spread her wings and show up the new young pup. I pulled out "Part-a-Piet", primed her, flipped the prop and the old A-75 startedon the first blade, putt-putting happily away- dependable as aways. I put my leather helmet on, and we taxied out to runway 18 in Marshalltown, fullthrottle (2500 rpm), and climbed out at about 400 ft per minute. Wow - whata difference. I've gotten used to the Jab3300 in the Waiex screaming at 3300rpm, climbing out at 1500+ ft/min. ANR headsets are an absolute requirement. It took me about 10 minutes of chaffing at the 70mph cruise speed - but then Istarted to relax and enjoy it, dropping down to about 500ft AGL. After the secondfarmer waived at me - I started checking out the freshly tilled fields andspent more time looking at the scenary and ignored the guages. I rememberedwhy I love this type of flying, the absolute simplicity and freedom. It was thebest hour long flight that I've had in a very, very long time.Keep building boys! You'll never regret your Piet, even if you pick up a new shinytoy - the old one is still a joy to fly. Mine now has 901 hours and is 27years old.Lorin MillerGN-1 N30PP Waiex N81YXColo, IowaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Piet Props
Pietenpol-List: Re: Piet Props
Original Posted By: "AircamperN11MS"
Thanks, Lorin. I need this kind of info. I am new to Piets! Every one a littledifferent. I want to be sure ofwhat I am doing. Getting scales soon. Will trya couple other props, I think.Sent from my iPadOn Apr 29, 2013, at 11:02 PM, "ldmill" wrote:> > Marcus,> I've got a GN-1 with an A-75 in it. It's got a metal McCauley 74x39 on it. WOTis 2500rpm at around 85mph indicated. Climb is pretty good. I typically cruiseat about 2250 rpm, burn at that rate is around 4.5 - 5 gallon per hour, speedaround 75mph. > > Your cruise of 80 kts (92mph) seams a little fast to me - but I guess it is possible.I'm not really comfortable in my plane at 90+mph though, it buffets mearound too much.> Lorin> > --------> Lorin Miller> Waiex N81YX> GN-1 N30PP> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 641#399641> > > > > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Piet Props
Thanks, Lorin. I need this kind of info. I am new to Piets! Every one a littledifferent. I want to be sure ofwhat I am doing. Getting scales soon. Will trya couple other props, I think.Sent from my iPadOn Apr 29, 2013, at 11:02 PM, "ldmill" wrote:> > Marcus,> I've got a GN-1 with an A-75 in it. It's got a metal McCauley 74x39 on it. WOTis 2500rpm at around 85mph indicated. Climb is pretty good. I typically cruiseat about 2250 rpm, burn at that rate is around 4.5 - 5 gallon per hour, speedaround 75mph. > > Your cruise of 80 kts (92mph) seams a little fast to me - but I guess it is possible.I'm not really comfortable in my plane at 90+mph though, it buffets mearound too much.> Lorin> > --------> Lorin Miller> Waiex N81YX> GN-1 N30PP> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 641#399641> > > > > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Piet Props
Re: Pietenpol-List: Re: Piet Props
Original Posted By: Marcus Zechini
Marcus,Your numbers are very close to mine. I can pull 2550 at WOT. My airspeed indicates93 MPH At 3000 MSL. With the C-85 I can get the fuel burn down to 5 GPHif I run the engine between 2200 and 2275 While flying solo. I can't do thatwith two people on board. I need to carry about 2350 or more with a 150lb passenger.Mt fuel burn is close to 6 GPH at gross weight.You may be propped very close to what you need.--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 30 Apr 2013 10:41:35 -0400Subject: Re: Pietenpol-List: Re: Piet Props
Marcus,Your numbers are very close to mine. I can pull 2550 at WOT. My airspeed indicates93 MPH At 3000 MSL. With the C-85 I can get the fuel burn down to 5 GPHif I run the engine between 2200 and 2275 While flying solo. I can't do thatwith two people on board. I need to carry about 2350 or more with a 150lb passenger.Mt fuel burn is close to 6 GPH at gross weight.You may be propped very close to what you need.--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 30 Apr 2013 10:41:35 -0400Subject: Re: Pietenpol-List: Re: Piet Props
Re: Pietenpol-List: Re: Piet Props
Original Posted By: "M. Zeke Zechini"
Hi Douwe,Nice flight. Where does one go for dimple tape?.. Ace Hardware? I saw an articlein an old Piet bulleting a yr or two ago. ..wouldn't mind trying it. ThxLarryN2308CRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Piet Props
Hi Douwe,Nice flight. Where does one go for dimple tape?.. Ace Hardware? I saw an articlein an old Piet bulleting a yr or two ago. ..wouldn't mind trying it. ThxLarryN2308CRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Piet Props
Original Posted By: "Jim Quinn"
Oscar, I Like the plan. I should have watched what I was doing last Sat., buthad too much fun flying!Right now, after checking McCauley application chart, I think I want to re- pitchmy prop to get just a little more bite... not a lot. I do like wood, though.Sent from my iPadOn Apr 30, 2013, at 8:56 PM, "taildrags" wrote:> > Marcus;> > One way you could set sort of a benchmark is to just go out for an hour witha full tank, climb to about 1500-2000', and set power to cruise at about 70 MPHindicated. Fly around and have fun at that cruise setting and altitude moreor less, and an hour later, top off the tank again and see how much you burned.I'm guessing it will be 4.5 to a max of 5 gallons.> > 41CC started life with a metal prop on the A65. I'll have to dig out the logsto see what the prop was. It's never had a metal prop since I've owned it,though.> > --------> Oscar Zuniga> Medford, OR> Air Camper NX41CC "Scout"> A75 power> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 723#399723> > > > > > > > > > ________________________________________________________________________________
Oscar, I Like the plan. I should have watched what I was doing last Sat., buthad too much fun flying!Right now, after checking McCauley application chart, I think I want to re- pitchmy prop to get just a little more bite... not a lot. I do like wood, though.Sent from my iPadOn Apr 30, 2013, at 8:56 PM, "taildrags" wrote:> > Marcus;> > One way you could set sort of a benchmark is to just go out for an hour witha full tank, climb to about 1500-2000', and set power to cruise at about 70 MPHindicated. Fly around and have fun at that cruise setting and altitude moreor less, and an hour later, top off the tank again and see how much you burned.I'm guessing it will be 4.5 to a max of 5 gallons.> > 41CC started life with a metal prop on the A65. I'll have to dig out the logsto see what the prop was. It's never had a metal prop since I've owned it,though.> > --------> Oscar Zuniga> Medford, OR> Air Camper NX41CC "Scout"> A75 power> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 723#399723> > > > > > > > > > ________________________________________________________________________________
Pietenpol-List: Re: Wing Strut Fittings on Spars
Original Posted By: "Bill Church"
Hi Bill,Here's a pic. Cut pieces on the bottom, inside and outside fittings for the wooden landing gear. My foil cut-outs are on top. I'm using plans purchased from the Pietenpol family, a one page supplement.Thanks,JimThe message is ready to be sent with the following file or link attachments:piet fittings________________________________________________________________________________Subject: Pietenpol-List: Re: Wing Strut Fittings on Spars
Hi Bill,Here's a pic. Cut pieces on the bottom, inside and outside fittings for the wooden landing gear. My foil cut-outs are on top. I'm using plans purchased from the Pietenpol family, a one page supplement.Thanks,JimThe message is ready to be sent with the following file or link attachments:piet fittings________________________________________________________________________________Subject: Pietenpol-List: Re: Wing Strut Fittings on Spars
Original Posted By: Gary Boothe
Jim,Something doesn't look right. The bottom bolt hole looks to be too close to theedge of the spar. I just drew up the lift strut bracket, with the dimensionsshown in the supplemental plans, using CAD, and superimposed it on a 4 3/4"spar, using whatever angle the dimensions resulted in. Turns out to be about39. I printed the drawing with a scale of 1:1, and scanned it. As you can see,it looks a little different from yours. I wonder if your miter angle at thetop of the bracket is off. You should be able to print a full scale copy ofthe drawing on 8 1/2" x 11" paper, to compare.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/lift ... __________
Jim,Something doesn't look right. The bottom bolt hole looks to be too close to theedge of the spar. I just drew up the lift strut bracket, with the dimensionsshown in the supplemental plans, using CAD, and superimposed it on a 4 3/4"spar, using whatever angle the dimensions resulted in. Turns out to be about39. I printed the drawing with a scale of 1:1, and scanned it. As you can see,it looks a little different from yours. I wonder if your miter angle at thetop of the bracket is off. You should be able to print a full scale copy ofthe drawing on 8 1/2" x 11" paper, to compare.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/lift ... __________
Pietenpol-List: Re: Emailing: piet fittings
Original Posted By: "tools"
Jim,Although my fittings are to the plans, it is my understanding that most builders adjust the fittings to fit their gear, especially in consideration of the gear changes one may make in line with William Wynne's findings on axle placement.Gary BootheNX308MBSent from my iPhoneOn Apr 30, 2013, at 6:09 PM, "Jim Quinn" wrote:> Hi Bill,> > Here's a pic. Cut pieces on the bottom, inside and outside fittings for the wooden landing gear. My foil cut-outs are on top.> > I'm using plans purchased from the Pietenpol family, a one page supplement.> > Thanks,> > Jim> > > The message is ready to be sent with the following file or link attachments:> piet fittings> ding or receiving certain types of file attachments. Check your e-mail secu> ________________________________________________________________________________Subject: Pietenpol-List: Re: Emailing: piet fittings
Jim,Although my fittings are to the plans, it is my understanding that most builders adjust the fittings to fit their gear, especially in consideration of the gear changes one may make in line with William Wynne's findings on axle placement.Gary BootheNX308MBSent from my iPhoneOn Apr 30, 2013, at 6:09 PM, "Jim Quinn" wrote:> Hi Bill,> > Here's a pic. Cut pieces on the bottom, inside and outside fittings for the wooden landing gear. My foil cut-outs are on top.> > I'm using plans purchased from the Pietenpol family, a one page supplement.> > Thanks,> > Jim> > > The message is ready to be sent with the following file or link attachments:> piet fittings> ding or receiving certain types of file attachments. Check your e-mail secu> ________________________________________________________________________________Subject: Pietenpol-List: Re: Emailing: piet fittings
Original Posted By: Jim Boyer
Ok, the pictures help tons, now I see what you're talking about.If you were to keep the angles to plans on the bottoms of the struts, it wouldchange the angle at the top by a practically negligible amount...By the way, when I say "to the plans", don't take this too seriously. I assumeyou made the upper angles "to the plans" as close as you could. If you madethem PERFECTLY, the plans themselves could be off enough to cause this, just becausea piece of paper 20 x 30" can change a quarter of an inch because of humidity...So, consider this. The gear strut geometry at the bottom is probably more critical,because the spacing between the pieces allows room for the axle. I'd considermaking the angles fit your metal pieces, then adjust where they hit thefuselage, in the angle, not where the fittings hit the fuse as they are wherethey are for strength reasons. Compound angle stuff is VERY difficult. TINY errors (pencil widths, imperfectcalibration of machine miter gages, etc...) add up VERY quickly. I make somewooden puzzles that require angles to be cut accurately to the minute... Despitea BUNCH of really really accurate tools (think machinist Brown and Sharpestuff accurate to tenths of minutes, ten thousandths of an inch...) in the end,angles get set by making multiple cuts, adding up the parts to find compoundingerrors and making empirical adjustments until the parts just fit.If you can get the parts to fit perfectly on the lower (near the axle end) perfectly,and with a gap about a 1/4" or less at the fuselage end, then you're ina position where you can adjust those ends to fit perfectly (which is necessary),then overall gear geometry will be fine. If there's a gap, then you transfer the gap dimension onto the strut every quarterof an inch, then just sand, pare with a chisel, whatever method you're mostcomfortable with, to your new line. That new line should taper from the max gap dimension where the parts touch, tonothing where the gap is the greatest... does that make sense? It's a methodof fitting generally known as "scribing". It's closely related to "coping".Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 1 May 2013 02:17:31 +0000 (UTC)
Ok, the pictures help tons, now I see what you're talking about.If you were to keep the angles to plans on the bottoms of the struts, it wouldchange the angle at the top by a practically negligible amount...By the way, when I say "to the plans", don't take this too seriously. I assumeyou made the upper angles "to the plans" as close as you could. If you madethem PERFECTLY, the plans themselves could be off enough to cause this, just becausea piece of paper 20 x 30" can change a quarter of an inch because of humidity...So, consider this. The gear strut geometry at the bottom is probably more critical,because the spacing between the pieces allows room for the axle. I'd considermaking the angles fit your metal pieces, then adjust where they hit thefuselage, in the angle, not where the fittings hit the fuse as they are wherethey are for strength reasons. Compound angle stuff is VERY difficult. TINY errors (pencil widths, imperfectcalibration of machine miter gages, etc...) add up VERY quickly. I make somewooden puzzles that require angles to be cut accurately to the minute... Despitea BUNCH of really really accurate tools (think machinist Brown and Sharpestuff accurate to tenths of minutes, ten thousandths of an inch...) in the end,angles get set by making multiple cuts, adding up the parts to find compoundingerrors and making empirical adjustments until the parts just fit.If you can get the parts to fit perfectly on the lower (near the axle end) perfectly,and with a gap about a 1/4" or less at the fuselage end, then you're ina position where you can adjust those ends to fit perfectly (which is necessary),then overall gear geometry will be fine. If there's a gap, then you transfer the gap dimension onto the strut every quarterof an inch, then just sand, pare with a chisel, whatever method you're mostcomfortable with, to your new line. That new line should taper from the max gap dimension where the parts touch, tonothing where the gap is the greatest... does that make sense? It's a methodof fitting generally known as "scribing". It's closely related to "coping".Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 1 May 2013 02:17:31 +0000 (UTC)