Pietenpol-List: Streamlining round tubing

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Pietenpol-List: Streamlining round tubing

Post by matronics »

Original Posted By: Warren Shoun
Hi,I was wondering if any of you have seen any articles on streamlining roundtubing? I'm using round 4130 for mu struts and will need to streamlinethem at some point. One of the local RAA members here said that herecently read an article on this in one of the magazines but could notremember which one. Anyone else out there remember seeing such an article?Thanks,Ken________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Ken Beanlands
Ken: See page 15 of the 1933 Flying & Glider Manual. It shows a shaped balsaformer on the back side of the tube & covered with pinked tape, doped andpainted.Good luck.Warren________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Warren Shoun
> See page 15 of the 1933 Flying & Glider Manual. It shows a shapedbalsa>former on the back side of the tube & covered with pinked tape, doped and>painted.A local builder did something much like this on a modified Heathparasol--histhird plane, the first having been a Piet! He used insulating foam insteadofbalsa, coated it lightly with epoxy, and wrapped with the (non-sticky)fiberglasstape used to cover joints in sheetrock. The result weighed virtuallynothing,and you wouldn't believe the rigidity.Owen Davies________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Ken Beanlands
Hi Owen: Great creative alternative. Bet it didn't cost much either. Thanks foranother "note" for my shop notebook. I think this is the true use of this chatline.Best Regards,WarrenOwen Davies wrote:> > See page 15 of the 1933 Flying & Glider Manual. It shows a shaped> balsa> >former on the back side of the tube & covered with pinked tape, doped and> >painted.>> A local builder did something much like this on a modified Heath> parasol--his> third plane, the first having been a Piet! He used insulating foam instead> of> balsa, coated it lightly with epoxy, and wrapped with the (non-sticky)> fiberglass> tape used to cover joints in sheetrock. The result weighed virtually> nothing,> and you wouldn't believe the rigidity.>> Owen Davies________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: TLC62770(at)aol.com
I just got off the phone with the EAA and sprung for the $6.95 to buy this1933 Glider and Flying Manual. I've heard so much about it I decided tosee what all the fuss was about ;-).Thanks,KenOn Thu, 10 Dec 1998, Warren Shoun wrote:> Hi Owen:> Great creative alternative. Bet it didn't cost much either. Thanks for> another "note" for my shop notebook. I think this is the true use of this chat> line.> Best Regards,> Warren> > Owen Davies wrote:> > > > See page 15 of the 1933 Flying & Glider Manual. It shows a shaped> > balsa> > >former on the back side of the tube & covered with pinked tape, doped and> > >painted.> >> > A local builder did something much like this on a modified Heath> > parasol--his> > third plane, the first having been a Piet! He used insulating foam instead> > of> > balsa, coated it lightly with epoxy, and wrapped with the (non-sticky)> > fiberglass> > tape used to cover joints in sheetrock. The result weighed virtually> > nothing,> > and you wouldn't believe the rigidity.> >> > Owen Davies> ________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Warren Shoun
>I just got off the phone with the EAA and sprung for the $6.95 to buy this>1933 Glider and Flying Manual. I've heard so much about it I decided to>see what all the fuss was about ;-).>Great series of reprints (1929 to 1933) in fact the last plane plans (RamseyFlying Bathtub) of the 1932 issue is the "inspiration" for my project...Just cant wait to finish the new wings.These books are FULL with great literature, (1929 issue includes a complete5 lesson flying course :-) that includes aerobatic manuvers!! great dreamingliterture for the wannabe pilot.I guarantee that all of you will ENJOY reading them.Saludos --------------- initial testing!=09 --------------Delegado Regional FEMEDA-FAI | 1,835 VW 2 place "modified" 1932 Ramsey= Bathtubggower(at)informador.com.mx | FAI Legal Ultralight (224 Kg dry) (90%= finished)Guadalajara, Jalisco, MEXICO |--Next project:-) HM-380 Flying Flea in= 1999(?)---------------------------------------------------------------------------Flying WWP (Wife & Weather Permited) from:Aerodromo "Paco Yerena" in Chapala: Alt 4,997' ASL N 20=BA18.610' W= 103=BA09.606'(Grass) Main Strip 14/32 700 mts (2,300'Long 60'W) CT: PAK 123.45For Ultralights and light planes only. Right pattern to 14 (flying over town=forbidden) IMPORTANT: check Altitude ASL & power available for take off! ________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: ADonJr(at)aol.com
Ken, If nothing else, you will have several good laughs caused by Bernard's senseofhumor in his writing. The great information about the Piet is pretty interesting too!Best Regards,WarrenKen Beanlands wrote:> I just got off the phone with the EAA and sprung for the $6.95 to buy this> 1933 Glider and Flying Manual. I've heard so much about it I decided to> see what all the fuss was about ;-).>> Thanks,> Ken>> On Thu, 10 Dec 1998, Warren Shoun wrote:>> > Hi Owen:> > Great creative alternative. Bet it didn't cost much either. Thanks for> > another "note" for my shop notebook. I think this is the true use of thischat> > line.> > Best Regards,> > Warren> >> > Owen Davies wrote:> >> > > > See page 15 of the 1933 Flying & Glider Manual. It shows a shaped> > > balsa> > > >former on the back side of the tube & covered with pinked tape, doped and> > > >painted.> > >> > > A local builder did something much like this on a modified Heath> > > parasol--his> > > third plane, the first having been a Piet! He used insulating foam instead> > > of> > > balsa, coated it lightly with epoxy, and wrapped with the (non-sticky)> > > fiberglass> > > tape used to cover joints in sheetrock. The result weighed virtually> > > nothing,> > > and you wouldn't believe the rigidity.> > >> > > Owen Davies> >>________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Warren Shoun
I ordered mine on monday. Not a bad price for plans to built 5 or more airplanes.That is if you can read the fine print.How many pages are in it anyway?GordonKen Beanlands wrote:> I just got off the phone with the EAA and sprung for the $6.95 to buy this> 1933 Glider and Flying Manual. I've heard so much about it I decided to> see what all the fuss was about ;-).>> Thanks,> Ken>> On Thu, 10 Dec 1998, Warren Shoun wrote:>> > Hi Owen:> > Great creative alternative. Bet it didn't cost much either. Thanks for> > another "note" for my shop notebook. I think this is the true use of thischat> > line.> > Best Regards,> > Warren> >> > Owen Davies wrote:> >> > > > See page 15 of the 1933 Flying & Glider Manual. It shows a shaped> > > balsa> > > >former on the back side of the tube & covered with pinked tape, doped and> > > >painted.> > >> > > A local builder did something much like this on a modified Heath> > > parasol--his> > > third plane, the first having been a Piet! He used insulating foam instead> > > of> > > balsa, coated it lightly with epoxy, and wrapped with the (non-sticky)> > > fiberglass> > > tape used to cover joints in sheetrock. The result weighed virtually> > > nothing,> > > and you wouldn't believe the rigidity.> > >> > > Owen Davies> >>________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: LanhamOS(at)aol.com
So, is there more than one Flying and Glider manual? In other words,should I have ordered everything from 1929 to 1933 or just there or is it all in one?Thanks,Ken________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Hatz630(at)aol.com
Gary Gower wrote:> Great series of reprints (1929 to 1933) in fact the last plane plans (Ramsey> Flying Bathtub) of the 1932 issue is the "inspiration" for my project...> Just cant wait to finish the new wings.>What are you building? Bathtub or Piet?I almost ordered all 5 of them but then thought I would see what one was like first.I was their at EAA in June but just did not see them or I would of bought one thenas I have an original 1930 Project book with glider plans and like reading oldbooks, even if they are reprints.Gordon>________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Warren Shoun
Ken, The 1932 Manual has 24 pages, by Bernard, on the Air Camper. In additionare several other articles that I personally found to be helpful. Forexample, on page 35 of an article of the "Powell P-H Racer" is a beautifuldrawing and description of a straight axle landing gear that helped me agreat deal in understanding the same idea on the Piet, which frankly leftsome details for you to determine. The 1933 Manual has 22 pages, again by Bernard, on the Sky Scout. InBernard's own words "There are a lot of improvements in these prints thatwill also be a great help to you if you are building the Air Camper", which Iwould agree with whole heartedly. The Piet plans are good, and these writings by "Mr. Pietenpol" himselfare both extremely helpful and immensely entertaining. And cheap at twicethe price. If you are going to build a Piet, get them. (No Opinion Here!)Best Regards,Warren________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Owen Davies
Gordon, The 32 Manual is 72 pages long and the 33 Manual is 76 pages...and yes, youdo needyour "good pair" to read some of the fine print.Warren________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Gordon Brimhall
> If nothing else, you will have several good laughs caused by Bernard'ssense of>humor in his writing.Actually, that piece is generally attributed to Westy Farmer, the editor,who then signed Mr. Pietenpol's name to it. I've heard that The Founderwincedat the writing, which he found a bit garish for hbis taste, but donot know how accurate that is.Owen Davies________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Gary Gower
WarrenThanksI am looking forward to receiving it. I sent email asking about the 2-3 weeks forshippingthey advertise and the nice person who answered said really it is 7 to 10 daysin mostcases.GordonWarren Shoun wrote:> Gordon,> The 32 Manual is 72 pages long and the 33 Manual is 76 pages...and yes, youdo need> your "good pair" to read some of the fine print.> Warren________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Richard DeCosta
The complete series is five great magazines, some real oldtimer solutions asusing car wheels spokes as turnbuckes (sp?), there are several realhomebuilder ideas (I think the only "kit" of that time was the HeathParasol... Maybe some other.All was homemade with available things, some obsolete, eye brous (sp?)raising UNSAFE under todays standards, but real "make you think" ideas.SaludosGary Gower>So, is there more than one Flying and Glider manual? In other words,>should I have ordered everything from 1929 to 1933 or just there or is it >all in one?>>Thanks,>Ken>>________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Rcaprd(at)aol.com
>>>Gary Gower wrote:>>> Great series of reprints (1929 to 1933) in fact the last plane plans (Ramsey>> Flying Bathtub) of the 1932 issue is the "inspiration" for my project...>> Just cant wait to finish the new wings.>>>>What are you building? Bathtub or Piet?>>I almost ordered all 5 of them but then thought I would see what one waslike first.>I was their at EAA in June but just did not see them or I would of boughtone then>as I have an original 1930 Project book with glider plans and like reading old>books, even if they are reprints.>>GordonI am building the Ramsey B'tub, I love the Piet since the late 80's, butwith our altitude (4,997 ft ASL)..., at that time the Model A wasunderpowered, and the only other option was the C-85, here aircraft enginesare REALLY expensive and rare, also there is no Corvair engines left (lookedaround several months and couldnt find one).I was a Hang glider pilot, so going to Trikes was kind of automatic, and asa VW mechanic (It paid my High School and College equivalent) I built the VWengine convertion first, just for the fun of it. The Piet will not fly with one (maybe was was expesive to give it a try andfail), so the only "light wing loading" two seater alternative I found wasthe Tub... Now I am building new wings (lighter loading and are ready tocover) with 2 more feet of span to get better performance (kind ofmotorglider floating) with a Riblet GA airfoil, the original ones (as theplans) were never finished (by the way I am using the Piet's aleirons system).Some years later I was lucky enough to get in touch with Mr. Lubitz(Canadian Conversion for the Escort) but the Tub's fuselage was almostfinished so I continued with it. Any how, I love the PIET, is a great plane for a more friendly altitudeASL.... Maybe someday I will build one, at least get a ride in one, I haveonly been at Sun & Fun (2 years ago) and had no luck to find one :-( to seea real one.SaludosGary Gower________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: John Duprey
Gary Gower wrote:> >> >> >Gary Gower wrote:> >> >> Great series of reprints (1929 to 1933) in fact the last plane plans (Ramsey> >> Flying Bathtub) of the 1932 issue is the "inspiration" for my project...> >> Just cant wait to finish the new wings.> >>> >> >What are you building? Bathtub or Piet?> >> >I almost ordered all 5 of them but then thought I would see what one was> like first.> >I was their at EAA in June but just did not see them or I would of bought> one then> >as I have an original 1930 Project book with glider plans and like reading old> >books, even if they are reprints.> >> >Gordon>> I am building the Ramsey B'tub, I love the Piet since the late 80's, but> with our altitude (4,997 ft ASL)..., at that time the Model A was> underpowered, and the only other option was the C-85, here aircraft engines> are REALLY expensive and rare, also there is no Corvair engines left (looked> around several months and couldnt find one).>> I was a Hang glider pilot, so going to Trikes was kind of automatic, and as> a VW mechanic (It paid my High School and College equivalent) I built the VW> engine convertion first, just for the fun of it.>> The Piet will not fly with one (maybe was was expesive to give it a try and> fail), so the only "light wing loading" two seater alternative I found was> the Tub... Now I am building new wings (lighter loading and are ready to> cover) with 2 more feet of span to get better performance (kind of> motorglider floating) with a Riblet GA airfoil, the original ones (as the> plans) were never finished (by the way I am using the Piet's aleirons system).>> Some years later I was lucky enough to get in touch with Mr. Lubitz> (Canadian Conversion for the Escort) but the Tub's fuselage was almost> finished so I continued with it.>> Any how, I love the PIET, is a great plane for a more friendly altitude> ASL.... Maybe someday I will build one, at least get a ride in one, I have> only been at Sun & Fun (2 years ago) and had no luck to find one :-( to see> a real one.>> Saludos>> Gary GowerGaryWell I can almost picture the Bathtub as I seen it years ago but will have to waittell my Glider & Flying Manual gets here.I don't know when I will start building a Real Piet. I have plans coming fromRagWing Aviation for the RW1 Ultra Piet, RW2 Special Pitts Biplane and the RW8/11Series where I can build Piper Vagabond, Colt, J-3 Taildraggers or Tri all, wrappedup into one set I think. I traded Roger a Computer for the plans as his oldcomputer broke down. The plans were shipped to me last week sometime and I can'twait to get them.So where do you live? I am in So. Calif in the High Desert on 2.6 acres. Not quitelarge enough for a runway but I have thought about it. 407' would be my biggeststrip. Now if the lady (Vacant Owner) behind me would sell me her property I wouldhave 800 ft to play with but after writing her twice in the past 9 years I getnoanswer. Property next door may be for sale as the older lady, we call her Mom wastaken up north and put into a rest home, so that would give us 300' x 407 to addtoour 300'x407' Still short in the direction we need.Well if you have a small picture of the bathTub you could email it to me.Gordon________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: michael list
>Gary>>Well I can almost picture the Bathtub as I seen it years ago but will haveto wait>tell my Glider & Flying Manual gets here.>>I don't know when I will start building a Real Piet. I have plans coming= from>RagWing Aviation for the RW1 Ultra Piet, RW2 Special Pitts Biplane and theRW8/11>Series where I can build Piper Vagabond, Colt, J-3 Taildraggers or Tri all,wrapped>up into one set I think. I traded Roger a Computer for the plans as his old>computer broke down. The plans were shipped to me last week sometime and Ican't>wait to get them.>>So where do you live? I am in So. Calif in the High Desert on 2.6 acres.Not quite>large enough for a runway but I have thought about it. 407' would be my= biggest>strip. Now if the lady (Vacant Owner) behind me would sell me her propertyI would>have 800 ft to play with but after writing her twice in the past 9 years Iget no>answer. Property next door may be for sale as the older lady, we call herMom was>taken up north and put into a rest home, so that would give us 300' x 407to add to>our 300'x407' Still short in the direction we need.>>Well if you have a small picture of the bathTub you could email it to me.>>Gordon>I live in Guadalajara, Jalisco Mexico. it is located betwen Mexico City andPuerto Vallarta, our Strip is in rhe shore of the Chapala Lake. I have a photo of my project when it was ready for covering, that a friendtooked with those new Digital Cameras, I will look for it and will send itas soon as I find it.When I finish with the wings I will have the space to "assamble" it for aphoto.Plans are to test fly it next year (as soon as possible!!!), I am finishingwith the instruments.Also my brother Larry's 1/2 VW powered trike is almost ready.Saludos --------------- initial testing!=09 --------------Delegado Regional FEMEDA-FAI | 1,835 VW 2 place "modified" 1932 Ramsey= Bathtubggower(at)informador.com.mx | FAI Legal Ultralight (224 Kg dry) (90%= finished)Guadalajara, Jalisco, MEXICO |--Next project:-) HM-380 Flying Flea in= 1999(?)---------------------------------------------------------------------------Flying WWP (Wife & Weather Permited) from:Aerodromo "Paco Yerena" in Chapala: Alt 4,997' ASL N 20=BA18.610' W= 103=BA09.606'(Grass) Main Strip 14/32 700 mts (2,300'Long 60'W) CT: PAK 123.45For Ultralights and light planes only. Right pattern to 14 (flying over town=forbidden) IMPORTANT: check Altitude ASL & power available for take off! ________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Gordon Brimhall
GarySounds good to me. Looks like you are doing a good job on your plane.Maybe I should retire down their.Give me information on that.GordonHigh Desert So. Calif.Gary Gower wrote:>> >Gary> >> >Well I can almost picture the Bathtub as I seen it years ago but w=ill have> to wait> >tell my Glider & Flying Manual gets here.> >> >I don't know when I will start building a Real Piet. I have planscoming from> >RagWing Aviation for the RW1 Ultra Piet, RW2 Special Pitts Biplan=e and the> RW8/11> >Series where I can build Piper Vagabond, Colt, J-3 Taildraggers or= Tri all,> wrapped> >up into one set I think. I traded Roger a Computer for the plans a=s his old> >computer broke down. The plans were shipped to me last week someti=me and I> can't> >wait to get them.> >> >So where do you live? I am in So. Calif in the High Desert on 2.6acres.> Not quite> >large enough for a runway but I have thought about it. 407' wouldbe my biggest> >strip. Now if the lady (Vacant Owner) behind me would sell me herproperty> I would> >have 800 ft to play with but after writing her twice in the past 9= years I> get no> >answer. Property next door may be for sale as the older lady, we c=all her> Mom was> >taken up north and put into a rest home, so that would give us 300=' x 407> to add to> >our 300'x407' Still short in the direction we need.> >> >Well if you have a small picture of the bathTub you could email it= to me.> >> >Gordon> >> I live in Guadalajara, Jalisco Mexico. it is located betwen MexicoCity and> Puerto Vallarta, our Strip is in rhe shore of the Chapala Lake.>> I have a photo of my project when it was ready for covering, that a= friend> tooked with those new Digital Cameras, I will look for it and will= send it> as soon as I find it.>> When I finish with the wings I will have the space to "assamble" it= for a> photo.>> Plans are to test fly it next year (as soon as possible!!!), I am f=inishing> with the instruments.>> Also my brother Larry's 1/2 VW powered trike is almost ready.>> Saludos-----------re Sail initi=al testing!-----------> Delegado Regional FEMEDA-FAI | 1,835 VW 2 place "modified" 1932 Ra=msey Bathtub> ggower(at)informador.com.mx | FAI Legal Ultralight (224 Kg dry) (=90% finished)> Guadalajara, Jalisco, MEXICO |--Next project:-) HM-380 Flying Fleain 1999(?)> -------------------------------------------------------------------=--------> Flying WWP (Wife & Weather Permited) from:> Aerodromo "Paco Yerena" in Chapala: Alt 4,997' ASL N 20=BA18.610'= W 103=BA09.606'> (Grass) Main Strip 14/32 700 mts (2,300'Long 60'W) CT: PAK 123.45> For Ultralights and light planes only. Right pattern to 14 (flyingover town> forbidden) IMPORTANT: check Altitude ASL & power available for take= off!________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Rcaprd(at)aol.com
michael list wrote:> Gordon Brimhall wrote:> >> >> > So where do you live? I am in So. Calif in the High Desert>> Gordon,>> Sounds like you are close to me as I live in Lancaster, CA.>> Mike ListYes, Maybe 60 miles or so.We will have to get together some day and talk airplanes.Gordon________________________________________________________________________________
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Pietenpol-List: Re: Streamlining round tubing

Post by matronics »

Original Posted By: Phil Peck
Gordon Brimhall wrote:> > > So where do you live? I am in So. Calif in the High Desert Gordon,Sounds like you are close to me as I live in Lancaster, CA.Mike List________________________________________________________________________________
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Pietenpol-List: Fw: Streamlining round tubing

Post by matronics »

Original Posted By: mboynton(at)excite.com
>and as a VW mechanic (It paid my High School and College equivalent) Ibuilt the VW>engine convertion first, just for the fun of it.>>The Piet will not fly with one (maybe it was expesive to give it a try and>fail), so the only "light wing loading" two seater alternative I found was>the Tub...What if you used a reduction unit? How do you think a Piet would fly then?________________________________________________________________________________
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Pietenpol-List: Re: enverted flight

Post by matronics »

Original Posted By: Michael D Cuy
To all:I didn't realize a Piet was capable of that - at least not exiting in onepiece. Just what are its limits? Don't think I'd like to try and duplicatethat feat.Mark BoyntonPhoenix, AZ> Back in the late 60's or early 70's Forrest Lovely flew an original"Piet"> from Minn. to Maine. When he departed Albany NY he did a snap roll on> departure. He was only 16 or 17 at the time and there was a picture and> article in the ALB newspaper about this kid doing a cross country in a1930> vintage homebuilt airplane.> > Gordon Brimhall wrote:> > > Well looks you have an aerobatic piet.> >> > get that 0-290 in it and you will be able to do snap rolls.> >> > nice that the plane will hold together.> >> > Gordon> >> > Eli or Robert or Teresa Bozeman wrote:> >> > > the recovery was to badddddd, it jecked the stick out of my hand, ani> > > grabbed it and started to force it back, an thought it was going to> > > set me up for a flat spin , so i relaxed a sec. an thought OK> > > spin...forward, opposit rudder....no!!!!upside down...back,> > > toprudder..3 turns an I'sss out of it!!!!> > > don't ever want to do that again. On my plane if you go into a tight> > > turn, it'll roll on over on to its back realy quick, may have ariggin> > > problem???but I've got it in my hanger right now puttin a 0-290 (125> > > hp) on it for a super Peit, just more climb realy no more going under> > > powerlines, its one thing going under lines cause you want to but not> > > cause you have toooooooo> > >> > > ---Dean Dayton wrote:> > > >> > > > Was there any indication of structural damage? I've read that the> > > Piet> > > > wings are only good for about 1g inverted.> > > >> > > > Was the recovery difficult or just scary?> > > >> > > >> > > >> > > > >Sorry Rob but your not the only Peit to go enverted!!!> > > > > I put my peit into a enverted spin, hope I never do that agin!!!!> > > I's> > > > >doing a modified split-S, I thought kinda like a wing over, stuckin> > > > >to much rudder and stall upside down, did 3 turns scared me worse> > > than> > > > >my pax,> > > > >anyway Peits forevere if you keep em rightside up!!!!> > > >> > > >> > > >> > >> > > > > > > --> >*> > David B.Schober, CPE> Instructor, Aviation Maintenance> Fairmont State College> National Aerospace Education Center> Rt. 3 Box 13> Bridgeport, WV 26330-9503> (304) 842-8300> > > > ________________________________________________________________________________
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Pietenpol-List: Re: Fw: Streamlining round tubing

Post by matronics »

Original Posted By: Keith Schindler
>>and as a VW mechanic (It paid my High School and College equivalent) I>built the VW>>engine convertion first, just for the fun of it.>>>>The Piet will not fly with one (maybe it was expesive to give it a try and>>fail), so the only "light wing loading" two seater alternative I found was>>the Tub...>>What if you used a reduction unit? How do you think a Piet would fly then?>The reduction for this instalation will be of about 1.5 : 1 that will givethe engine a take off "speed" of about 3,500 rpm with the prop at a good2,333 rpms.My dought was that the increase in diameter of the prop and the "penalty" ofthe reduction weight and friction could neutralize the benefits... maybe someone will try this combo and comment, I will like to know theirHands on experience for sure.SaludosGary Gower ________________________________________________________________________________
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> Fw: Streamlining round tubing

Post by matronics »

Original Posted By: Michael D Cuy
I may not be right with this, but for what it's worth, assuming a 65 hp volkswagon engine...Torque= 65Hpx5252/3500rpm=97 ftlbs of torqueTroque with a psru reducing rpm to 2330, 65x5252/2330=146 ft lbsIt seems to me that the VW engine would work alright. I seem to remember reading something about cooling problems using the VW at the low speed of the piet however. There may also be some sort of problem with the VW running at high rpm turning a short prop and not properly converting the engine power into thrust. ocb>From steve(at)byu.edu Wed Jan 6 09:57:21 1999>Received: from adena.byu.edu ("port 3545"@adena.byu.edu [128.187.22.180])> by EMAIL1.BYU.EDU (PMDF V5.2-29 #31181)> with ESMTP id for oilcanbob(at)hotmail.com;>Date: Wed, 06 Jan 1999 09:35:32 -0800>From: Brent Reed >Subject: Fw: Streamlining round tubing>Sender: Maiser(at)adena.byu.edu>To: Pietenpol Discussion >Errors-to: Steve(at)byu.edu>Reply-to: Pietenpol Discussion >Message-id: >MIME-version: 1.0>X-Mailer: Microsoft Outlook Express 4.72.3110.1 (via Mercury MTS v1.44 (NDS))> (via Mercury MTS v1.44 (NDS))>Comments: Originally To: "Pietenpol Discussion" >X-Listname: >>>and as a VW mechanic (It paid my High School and College equivalent) I>built the VW>>engine convertion first, just for the fun of it.>>>>The Piet will not fly with one (maybe it was expesive to give it a try and>>fail), so the only "light wing loading" two seater alternative I found was>>the Tub...>>What if you used a reduction unit? How do you think a Piet would fly then?>>________________________________________________________________________________
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