Original Posted By: owner-pietenpol-list-server(at)matronics.com
...and for those who may doubt it, Scott demonstrated some of the aerobaticabilities of a Piet at the recent West Coast Piet Gathering.Gary BootheCool, CAPietenpolWW Corvair ConversionTail done, Fuselage on gear19 ribs done-----Original Message-----
Pietenpol-List: Piet Aerobatics
Re: Pietenpol-List: Fw: Dan Yocum wrote on your Wall...
Original Posted By: jeff wilson
Re: Pietenpol-List: Piet Aerobatics
Original Posted By: Jeff Boatright
Re: Re: Pietenpol-List: Piet Aerobatics
Original Posted By: shad bell
RE: Pietenpol-List: Piet Aerobatics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Tail slides, outside loops, snap rolls...you know, kid's stuff. Gary BootheCool, CAPietenpolWW Corvair ConversionTail done, Fuselage on gear19 ribs done-----Original Message-----
Tail slides, outside loops, snap rolls...you know, kid's stuff. Gary BootheCool, CAPietenpolWW Corvair ConversionTail done, Fuselage on gear19 ribs done-----Original Message-----
Pietenpol-List: Re: Dan Yocum wrote on your Wall...
Original Posted By: "Jack"
I must have missed it-but sounds like you got the head hot? was there a bottomcylinder baffle that came loose or something? I am kind surprised at how littleholds them in place.I made the left side scoop long to include the oil coolermounted right behind the head on mine.I sure hope simple scoops and bottom bafflesare enough to cool it.can you tell a little more about what you think causedthe initial problem? RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
I must have missed it-but sounds like you got the head hot? was there a bottomcylinder baffle that came loose or something? I am kind surprised at how littleholds them in place.I made the left side scoop long to include the oil coolermounted right behind the head on mine.I sure hope simple scoops and bottom bafflesare enough to cool it.can you tell a little more about what you think causedthe initial problem? RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Re: Pietenpol-List: Piet Aerobatics
Original Posted By: Dan Yocum
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Pietenpol-List: Re: Order plans
Original Posted By: "Jerry Dotson"
Search the archives - Rob Bach described the aerobatics he's done in his blue Piet.-- yocum(at)gmail.comOn Jun 25, 2010, at 5:17 PM, Jeff Boatright wrote:> > What maneuvers did he do?> > This brings up a question I've always had: Has anyone done a real g stress analysison the Piet? One-piece and three-piece wing? Short and long fuselage? Withand without wing strut intercostals? Etc. I know that the Flying and GliderManual article states that an engineer said that the Piet was plenty strong,but plenty strong for what?> > >> >> ...and for those who may doubt it, Scott demonstrated some of the aerobatic>> abilities of a Piet at the recent West Coast Piet Gathering.>> >> Gary Boothe> > -- > ---> > Jeffrey H. Boatright, Ph.D.> Associate Professor of Ophthalmology> Emory University School of Medicine> Editor-in-Chief> Molecular Vision> > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Order plans
Search the archives - Rob Bach described the aerobatics he's done in his blue Piet.-- yocum(at)gmail.comOn Jun 25, 2010, at 5:17 PM, Jeff Boatright wrote:> > What maneuvers did he do?> > This brings up a question I've always had: Has anyone done a real g stress analysison the Piet? One-piece and three-piece wing? Short and long fuselage? Withand without wing strut intercostals? Etc. I know that the Flying and GliderManual article states that an engineer said that the Piet was plenty strong,but plenty strong for what?> > >> >> ...and for those who may doubt it, Scott demonstrated some of the aerobatic>> abilities of a Piet at the recent West Coast Piet Gathering.>> >> Gary Boothe> > -- > ---> > Jeffrey H. Boatright, Ph.D.> Associate Professor of Ophthalmology> Emory University School of Medicine> Editor-in-Chief> Molecular Vision> > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Order plans
Original Posted By: Darrel Jones
This kink will take you where you need to go:http://www.pressenter.com/~apietenp/Pro ... -----Jerry Dotson59 Daniel Johnson RdBaker, FL 32531Started building NX510JD July, 2009Ribs and tailfeathers doneusing Lycoming O-235Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 25 Jun 2010 20:07:24 -0700
This kink will take you where you need to go:http://www.pressenter.com/~apietenp/Pro ... -----Jerry Dotson59 Daniel Johnson RdBaker, FL 32531Started building NX510JD July, 2009Ribs and tailfeathers doneusing Lycoming O-235Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 25 Jun 2010 20:07:24 -0700
Pietenpol-List: Re: Piet Aerobatics
Original Posted By: "AircamperN11MS"
thanks for the help guys!The plan is that my dad, my buddie's dad and i are going to push, pull, shove theol car into the barn and tear it all down. I'm way excited to tear into herand see what's what. He also said that he has another motor we can look at aswell
Of course I am going to buy the manual as well.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Piet Aerobatics
thanks for the help guys!The plan is that my dad, my buddie's dad and i are going to push, pull, shove theol car into the barn and tear it all down. I'm way excited to tear into herand see what's what. He also said that he has another motor we can look at aswell
Of course I am going to buy the manual as well.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Piet AerobaticsPietenpol-List: Piet Aerobatics
Original Posted By: Jim Markle
I'll re-post something that I posted here in Oct. of 2006 when therewas a discussion of wing strut failures. Someone said that therehad never been an inflight failure of an Air Camper wing and thefact was disputed. Turns out that the case in question did NOTinvolve a wing spar failure... it was the wing strut. Here's thepost, and the reference to aerobatics:>I think I've found a reference to Pietenpol wing strut failure,>to go with the recent thread on aluminum struts and jury struts>and all that. Chet Peek's book, discussing Bennie Skaarberg's>Model A powered Aircamper, gives Pietenpol's comments following>the fatal crash: "Pietenpol and other witnesses later revealed>the cause of the crash was actually the failure of the wing struts.>Skaarberg had tried to do a loop, fallen out of the maneuver at>the top, thus putting a reverse load on the struts, and the wing>came off.">>Doesn't say whether Skaarberg's airplane had jury struts installed>nor are there pictures of the airplane other than the mangled heap>of wreckage, but apparently the comment regarding negative G's was>based on this incident. The aluminum strut substitution would seem>to warrant some engineering analysis not just in tension, but>buckling failure modes in compression when compared with the equivalent>4130 streamlined tubing struts.Other discussions in the past seemed to indicate that the standardAir Camper setup is only good for ONE negative G, and various pilots(Mike Cuy comes to mind) reported having experienced considerablymore than one negative G in flying their aircampers. This was inrelation to the requirement for jury struts on the wing lift struts.Jury struts should be considered to be mandatory... aerobatics ornot.Mikee also pointed out that Mr. Pietenpol's original wing strutmaterial had internal stiffeners that today's streamline tubingdoes not have, so it's even questionable as to what the actualcapability of today's struts is compared to the internallystiffened material of those days, with or without jury struts.Oscar ZunigaAir Camper NX41CCSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net ________________________________________________________________________________Date: Mon, 28 Jun 2010 08:57:21 -0400 (EDT)
I'll re-post something that I posted here in Oct. of 2006 when therewas a discussion of wing strut failures. Someone said that therehad never been an inflight failure of an Air Camper wing and thefact was disputed. Turns out that the case in question did NOTinvolve a wing spar failure... it was the wing strut. Here's thepost, and the reference to aerobatics:>I think I've found a reference to Pietenpol wing strut failure,>to go with the recent thread on aluminum struts and jury struts>and all that. Chet Peek's book, discussing Bennie Skaarberg's>Model A powered Aircamper, gives Pietenpol's comments following>the fatal crash: "Pietenpol and other witnesses later revealed>the cause of the crash was actually the failure of the wing struts.>Skaarberg had tried to do a loop, fallen out of the maneuver at>the top, thus putting a reverse load on the struts, and the wing>came off.">>Doesn't say whether Skaarberg's airplane had jury struts installed>nor are there pictures of the airplane other than the mangled heap>of wreckage, but apparently the comment regarding negative G's was>based on this incident. The aluminum strut substitution would seem>to warrant some engineering analysis not just in tension, but>buckling failure modes in compression when compared with the equivalent>4130 streamlined tubing struts.Other discussions in the past seemed to indicate that the standardAir Camper setup is only good for ONE negative G, and various pilots(Mike Cuy comes to mind) reported having experienced considerablymore than one negative G in flying their aircampers. This was inrelation to the requirement for jury struts on the wing lift struts.Jury struts should be considered to be mandatory... aerobatics ornot.Mikee also pointed out that Mr. Pietenpol's original wing strutmaterial had internal stiffeners that today's streamline tubingdoes not have, so it's even questionable as to what the actualcapability of today's struts is compared to the internallystiffened material of those days, with or without jury struts.Oscar ZunigaAir Camper NX41CCSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net ________________________________________________________________________________Date: Mon, 28 Jun 2010 08:57:21 -0400 (EDT)
RE: Pietenpol-List: Piet Aerobatics
Original Posted By:> taildrags(at)hotmail.com
Keerp in mind that even certified aircraft are only stressed for 1.5 negative. I personally have experienced moderate to severe turbulence and swore that we were reaching the limits of the airframe. (I wasn't flying=2C nor did I fly with this person again) I did trust the published manouvering speed though. Anyway=2C My point is that 1.5 negative Gs is a lot. Having later experienced it. I know now that I have never even experienced 1 negative in normal flight. Just my .02 and it my not even be worth that.One final thought. Aluminum struts are used on many exp. aircraft in the same weight range as the Piet.Doug DeverIn beautiful Stow Ohio
Keerp in mind that even certified aircraft are only stressed for 1.5 negative. I personally have experienced moderate to severe turbulence and swore that we were reaching the limits of the airframe. (I wasn't flying=2C nor did I fly with this person again) I did trust the published manouvering speed though. Anyway=2C My point is that 1.5 negative Gs is a lot. Having later experienced it. I know now that I have never even experienced 1 negative in normal flight. Just my .02 and it my not even be worth that.One final thought. Aluminum struts are used on many exp. aircraft in the same weight range as the Piet.Doug DeverIn beautiful Stow Ohio
Re: Pietenpol-List: Piet Aerobatics
Original Posted By: Ben Charvet