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Pietenpol-List: fish scales
Posted: Mon Feb 24, 2014 7:53 pm
by matronics
Original Posted By: "taildrags"
my plans have nothing about safety wire. my ac 43-13 is full of data on when andhow to use it. I never waste time thinking about stuff that has already beendecided by very smart people. its all simple to me just do what the book saysand don't waste valuable time thinking. at 70 I have learned that time is short...thebest part about building a piet is that its a proven design. just followthe plans, use the wood recommended in the AC, same for hardware, fabricand paint. I will admit that I spent about 30 min deciding on the best glue forme. I will assure any builder that makes changes will fuck up a very good design. one thing that I learned in my 55 years in aviation leave the thinkingto others. most of us are not properly equipped to be thinking.jim hydeRead this topic online here:
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Re: Pietenpol-List: fish scales
Posted: Mon Feb 24, 2014 9:31 pm
by matronics
Original Posted By: Brian Kenney
OK, so in another couple of weeks I'll be starting to think about having Scoutdo the thrust test with the official fish scales. Not in any hurry though. Whohas the scales and how do I go about getting in the mailing queue to try themout?--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:
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Re: Pietenpol-List: fish scales
Posted: Tue Feb 25, 2014 5:48 am
by matronics
Original Posted By: taildrags
Oscar,I gave the Official Pietenpol-List Fish Scales (why is this plural?) to Larry Morlock at Brodhead last summer. I assume he still has them. As far as this test being a waste of time.....oh I don't know. At least it will give a relative static thrust compared to all the other Piets that have used it (them). That is worth something, right? If I were a new builder I would feel a lot better and confident on my very first take-off if I knew that my powerplant/prop at least was in line with other proven ships that came before. Isn't that how jet engines are rated, static thrust?Dan HelsperPuryear, TN-----Original Message-----
Re: Pietenpol-List: Re: fish scales
Posted: Tue Feb 25, 2014 6:35 pm
by matronics
Original Posted By: Gary Boothe
Besides all the above. The engine mount would need to be six feet long. It doesn'tweigh enough.--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:
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Pietenpol-List: Re: fish scales
Posted: Tue Feb 25, 2014 6:42 pm
by matronics
Original Posted By: "AircamperN11MS"
[Like]GaryNX30MB (I'll be happy just making it there!!)Sent from my iPhone> On Feb 25, 2014, at 4:29 PM, "AircamperN11MS" wrote:> > > Hey, I have an idea. How about the scale find its way to Frazeur Lake for thePiet gathering. We could have a pull off. Perhaps send it t to Chris Tracy.> > --------> Scott Liefeld> Flying N11MS since March 1972> Steel Tube> C-85-12> Wire Wheels> Brodhead in 1996> > > > > Read this topic online here:> >
http://forums.matronics.com/viewtopic.p ... 352#419352> > > > > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: fish scales
Pietenpol-List: Re: fish scales
Posted: Tue Feb 25, 2014 8:56 pm
by matronics
Original Posted By: "taildrags"
I do have to say that I looove my Continental A-65 in my Piet. It is very simpleand near bullet proof. Although I've done very little to it, it is enjoyableto work on. There's just not much to them! Because of my experiences, I liketo recommend the Continental to the Piet builders. My main experiences with the Corvair however, are fairly limited. Most of my experienceconsists of being outrun and out climbed by Shad. In a few trips toand from Brodhead and Oshkosh I've found this out. Once when flying home fromOshkosh I was following Shad and he decided to just pop up above the layer ofclouds. He went on up and I followed. I had to wallow around a cloud on theway up. Meanwhile he was already up there. Another time we were somewhereover Northern Indiana and the storms were building around us. We were 40 or 50miles from our stop and he just motored on ahead of me to beat the stuff. Thenthere was last year, my dad (in the Chief) and I took off ahead of him andhe said he'd catch up. He needed to fuel up yet. I thought... yeah, right,see at the next stop on the ground. After about 40 minutes... here comes Shadmotoring up alongside me. Shad's a really sharp guy though and any engine isonly as good as the last guy that worked on it.Still, I like my Continental. :-)Don EmchNX899DERead this topic online here:
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Posted: Tue Feb 25, 2014 10:27 pm
by matronics
Original Posted By: "Gary Boothe"
I'll be fine with a pull-off at Frazier Lake in June if Gary will park "Samson"(his airplane) and be the judge, then the rest of us 90-lb weaklings can strainand stretch against the mighty fish scales.And to answer Dan's question about why "scales" are plural, I guess it goes backto when they used the old balance scales with a little pan on each end of abalance beam.I plan to take some of my brass data plates to Frazier Lake in case anybody wantsto buy some, but maybe I'll put some up as prizes in the pull-off.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:
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RE: Pietenpol-List: Re: fish scales
Posted: Wed Feb 26, 2014 7:17 am
by matronics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
It's Mike Groah you need to worry about...His beautiful Piet puts me toshame!Gary BootheNX308MB-----Original Message-----
Re: Pietenpol-List: Re: fish scales
Posted: Wed Feb 26, 2014 9:34 am
by matronics
Original Posted By: "Gary Boothe"
I have the fish scale(s) and will be happy to send it (them) to whomever wants to be the next one "in charge." Just send me the address. Larry Morlock----- Original Message -----
Pietenpol-List: Re: fish scales
Posted: Wed Feb 26, 2014 12:31 pm
by matronics
Original Posted By: "BYD"
I'm pretty sure grandpa didnt run it easy either! It is currently slowly goingback together in my garage right now, and I would bet money that it is aboutthe lightest one out there. Built strictly to plans with no bells or whistlesincluded! The engine is per B.H. Pietenpols conversion with the blower on topand the cowl like "The Last Original" We even camped out on the originalPietenpol Field in Cherry Grove, no hangar but we did walk into town and lookat his old shop and talk to a couple of the locals.Jeff Boatright wrote:> Fastest Piet I ever saw was Vandervoort's, which was powered by the> original-style, Bernard Pietenpol version of a Corvair version. Didn't> seem to have any problem getting Vandervoort up into the blue, either, and> he was not tiny.> > --> > Jeffrey H. Boatright, PhD, FARVO> Associate Professor of Ophthalmology> Emory University School of Medicine> > > > > On 2/24/14 7:27 PM, "taildrags" wrote:> > > > > > > > Paul;> > > > I can only relate my own experience, and here it is. I left a fly-in on> > a nice mild sunny afternoon in Texas, field elevation maybe 600'MSL. I> > was not at gross, maybe half fuel, but two aboard. My airplane has a> > fresh A75. We were just about leveled off at our cruise altitude of> > maybe 2500-3000' headed home when out of nowhere from behind us comes> > "Axel" Purtee in his Corvair-powered Piet, also two aboard, and formed up> > on our wing for photos. Mind you, we had about a 10 minute head start> > and he had caught up with us. After the photos he firewalled it and> > walked away. His "Fat Bottomed Girl" weighed more than my airplane. The> > Corvair is a very competent engine for the Air Camper.> > > > --------> > Oscar Zuniga> > Medford, OR> > Air Camper NX41CC "Scout"> > A75 power> > > > > > > > > > Read this topic online here:> > > >
http://forums.matronics.com/viewtopic.p ... 280#419280> > > > > > > > > > > > > > > > > > > > > > > > > > > ________________________________> > This e-mail message (including any attachments) is for the sole use of> the intended recipient(s) and may contain confidential and privileged> information. If the reader of this message is not the intended> recipient, you are hereby notified that any dissemination, distribution> or copying of this message (including any attachments) is strictly> prohibited.> > If you have received this message in error, please contact> the sender by reply e-mail message and destroy all copies of the> original message (including attachments).--------A&P/IARecreational Pilot - working on Privatehttp://
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Re: Pietenpol-List: Re: fish scales
Posted: Wed Feb 26, 2014 1:25 pm
by matronics
Original Posted By: Brian Kenney
brian.kenney(at)live.ca wrote:> Static thrust tests are really a waste of time. As static thrust is a force andnothing is moving there is no work being done. Static thrust is generally proportionalto the diameter of the propeller. The twist effects it if there ispart of the blade stalled but little of this matters until you are near climbspeed. So don't bother unless you are comparing one propeller to two differentmotors and then rpm is more important anyway.> > Brian Kenney> > Sent from my iPad> > The tradition of testing with a scale started with BHP himself. Whenever he wastesting a new engine/prop combination, hed hitch the plane to a fence post andmeasure the pull if it matched the figure he previously got from a well flyingship, he would assume it would at least get in the air.Somewhere, someone asked about comparisons between different power-plants and Ican add that a partner and myself attended Brodhead one year specifically tocompare and decide on what power-plant we wanted to use (we both had been buildingwith conventional engines in mind). After watching the climb out of allthe combinations present and he taking a ride in a Corvair powered ship and myselfin a Model-A version, we decided on the Model-A. It truly surprised us comparingthe climb out with passenger, how well the model-A performed. We hadto cutup the firewalls of our projects after returning home.Not conclusive or scientific, but maybe itll help whomever asked.Read this topic online here:
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