Pietenpol-List: Turtle Deck and Instrument Panels

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Pietenpol-List: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: "K5YAC"
And as most Piets are tail-heavy, the extra weight of the counterweighted crank is probably a good thing.- And if it makes the engine run smoother, the plane will be more comfortable to fly and also will make the airframe last a bit longer too as the vibration levels will be much less.- I can't think of a good reason not to use a counterweighted crank, pretty much every engine ever made since 1930 has had counterweighted cranks for a reason.--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... 8#317308le, List Admin.=0A=0A=0A ________________________________________________________________________________Subject: Pietenpol-List: Turtle Deck and Instrument Panels
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Post by matronics »

Original Posted By: Jim Markle
I am getting ready to start on my turtle deck and I'm wondering if a modificationto the dimensions would be appropriate or acceptable. The plans show the turtledeck to be an elliptical shape, or perhaps an offset radius, but due tomy size I was wondering if it would be suitable to cut a taller radius like acomplete half circle, which would make for a taller seat back and instrument panel.For example, if the fuse width at the seat back is 24", can I just cuta 12" radius, or will this not work for some reason? I know that it will makethe fuselage look taller and require me to raise the instrument panel to match,but for the purpose of seat belts, panel visibility, etc., I'm thinking itmight be a good idea. Any suggestions or recommendations as to why I should notdo this? Thanks!--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/turt ... ______Date: Thu, 28 Oct 2010 10:45:39 -0500 (GMT-05:00)
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Re: Pietenpol-List: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By:>> K5YAC
Mark,I am raising mine, not sure how much yet, but significantly above the plans. Ifyou do the same for the panels, you'll also want to look at raising the cabanesby several inches (there is a limit to what's practical on that, not surewhat, but it's been discussed on the list at some point in the past). Also, AndrewPietenpol told me years ago that he thought 9 turtleneck stringers lookedbetter than the 7 the plans call for & that's what he was doing on the projecthe was working on at the time.Kip GardnerOn Oct 28, 2010, at 11:45 AM, Jim Markle wrote:> > Raise it. Not sure if people make it a full 12" radius but it does get raised.....ifyou want, you can come measure mine to see what you think....> > jm> > > -----Original Message-----
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>> Pietenpol-List: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: "TOM STINEMETZE"
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Re: Pietenpol-List: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: airlion
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Re: Pietenpol-List: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: Ben Charvet
I've heard this mentioned before, but honestly, I wonder. I mean, most guys bodies stick way up above the normal turtleneck & I'm sure that in itself has a negative effect on the airflow to the vertical stabilizer. I'd think that a higher turtleneck might actually result in improved flow, with less turbulence, but I'm not the expert, so just thinking it through as to what seems logical. Chuck Gantzer has a secondary turtleneck on his Piet, I assume mainly as a headrest, but maybe also to improve airflow & I believe his plane flies just fine (haven't heard anything from Chuck on the list in a couple of years, guess he's deep into his new project).Kip GardnerOn Oct 28, 2010, at 12:12 PM, TOM STINEMETZE wrote:> Mark:> > Some additional height is OK but don't overdo it. You do not want to overly affect the airflow over your vertical stab. I believe Master Cuy stated that he raised his by 2 inches which is why I built mine that way. Mine has not yet flown, however, so take my advice with a grain or two of salt. (whatever that means)> > Tom Stinemetze> N328X> > > > >>> "K5YAC" 10/28/2010 10:18 AM >>>> I know that it will make the fuselage look taller and require me to raise the instrument panel to match, but for the purpose of seat belts, panel visibility, etc., I'm thinking it might be a good idea. Any suggestions or recommendations as to why I should not do this? > > Thanks!> > --------> Mark Chouinard> > > ________________________________________________________________________________Date: Thu, 28 Oct 2010 12:57:30 -0400
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Pietenpol-List: Re: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: Dan Yocum
Thanks Kip (and others) for the comments. I do plan to raise the cabanes 2". I think they could go higher, but others have said that it starts to look a littledifferent overall if raised more than 2", so for now I am sticking to thatmeasurement. Also, I have planned to install 9 stringers as well. I'm notsure if I came to that conclusion by looking at photos or if someone told me toconsider using 9, none the less, I'm glad that I remembered that advise. Now, as for the height of the turtle deck and instrument panels... I don't guessit matters much how high it is as long as it doesn't protrude unnecessarilyinto the slip stream. I am tall, so I'll be obstructing the air flow some withmy upper torso, plus, I plan to install wind shields (at least short ones, asmany do), so I don't guess it will make much difference whether it is my bodyor the structure that is in the way. I'll try to keep it to a minimum, butI'll obviously need to make some adjustments for my size. kipandbeth(at)earthlink.n wrote:> Mark,> > I am raising mine, not sure how much yet, but significantly above the plans.If you do the same for the panels, you'll also want to look at raising the cabanesby several inches (there is a limit to what's practical on that, not surewhat, but it's been discussed on the list at some point in the past). Also,Andrew Pietenpol told me years ago that he thought 9 turtleneck stringers lookedbetter than the 7 the plans call for & that's what he was doing on the projecthe was working on at the time.> > Kip Gardner> > On Oct 28, 2010, at 11:45 AM, Jim Markle wrote:> Raise it. Not sure if people make it a full 12" radius but it does get raised.....ifyou want, you can come measure mine to see what you think....> > jm> > > ----------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 28 Oct 2010 15:40:01 -0500
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Fwd: Pietenpol-List: Turtle Deck and Instrument Panels

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Original Posted By: helspersew(at)aol.com
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Pietenpol-List: Re: Fwd: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: Doug Dever
I understand Dan, and I am trying my best to adhere to the plans, but in reality,I am 6'5" tall... something that Bernard didn't have to consider. I have satin my fuselage with a simple seat that should closely replicate my positionin the rear pit and I've found that the rear seat back/turtle deck front is waytoo low to provide for effective safety harness installation, not to mentionthe added comfort of an upper back rest. Unfortunately, I have a much larger than average framework, but I don't intendto keep that from letting me build or fly this airplane.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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Fwd: Pietenpol-List: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: helspersew(at)aol.com
Keep in mind Mr Pietenpol was not a very tall fellow. Bingillis and others have a valid point about the shoulder harness. I am not all that tall=2C but I'm 6'3 when sitting. A little vertically challenged in the leg dept. So that is a concern to me also.Doug DeverIn beautiful Stow OhioSubject: Fwd: Pietenpol-List: Turtle Deck and Instrument PanelsDate: Thu=2C 28 Oct 2010 17:58:43 -0400
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> Pietenpol-List: Re: Fwd: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By:> hangar10(at)cox.net
Yeah=2C what you said tooDoug DeverIn beautiful Stow Ohio> Subject: Pietenpol-List: Re: Fwd: Turtle Deck and Instrument Panels
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Re: Pietenpol-List: Re: Fwd: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: Clif Dawson
Cliff,That is a big difference is weight. I did not even imagine it would be that much. I guess that "shows to go you" that every little change really increases the weight.Thanks so much for taking the time to look up this information.... guess I could have done it myself. Just think, every extra gusset placed on the plane is probably an extra ounce, plus the weight of the glue. We might want to keep that in mind.Thanks again!Thanks and fly SAFELY,Ray KrauseWaiex 51YX, Jabiru 3300 (1197), Sensenich wood prop, AeroCarb (#2 needle modified), Dynon D-180, Garmin SL 30 NavCom, Garmin 327 transponder, Garmin Aera 560, nav and strobe lights: 227 hrs.Also building the Sky Scout.. time table is SLOW! ----- Original Message -----
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Re: Pietenpol-List: Re: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: Jack
My Okume arrived as well, and it's in very nice condition; attached to a 1/4 inthk, sheet of particle or ply, and wrapped in cardboard. As far as I can tell, first quality, no problems.--------Tom KreinerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Turtle Deck and Instrument Panels
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Pietenpol-List: Re: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: "K5YAC"
Mark don't forget the reduced clearance above for entry and exit.Jack TextorSent from my iPhoneOn Nov 1, 2010, at 9:13 AM, "K5YAC" wrote:> > I know Halloween was yesterday, so forgive me for the scary photo... > > With a 10-13/16" radius (21-5/8" width at seat back), I have just enough spaceto allow for proper placement of the seat belt. I know this doesn't do muchto illustrate how the taller seat back might actually look... I'll have to postsome of those photos later on. In the current form, the front of my turtledeck will be 4-13/16" taller than plans. Please don't send a lynch mob. :-)> > Oh, I am sitting on a makeshift seat that has me ~5" off the floor of the fuse.I hope this was a good estimate as the plans show the front of the seat tobe 6" off the floor at the front, and then another 1" or so when I count theseat top, which I plan to make with a wicker weave. I should be in the ballpark...I hope.> > --------> Mark Chouinard> Wings, Center Section and Empannage framed up - Working on Fuselage> > > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 738#317738> > > > > Attachments: > > http://forums.matronics.com//files/seat_back_154.jpg> > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Turtle Deck and Instrument Panels
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Post by matronics »

Original Posted By: Jim Markle
I'm planning to cut out my center section. I know, I know... somebody get a rope!! jack(at)textors.com wrote:> Mark don't forget the reduced clearance above for entry and exit.> > Jack Textor> Sent from my iPhone> > --------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 1 Nov 2010 08:24:07 -0700 (GMT-07:00)
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Pietenpol-List: Re: Space, or lack there of

Post by matronics »

Original Posted By: "Mild Bill"
Plan FRent a storage facility or hangar.Plan GBuild a shop.Plan HMove.Go Rangers! [Laughing]--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Space, or lack there of
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Pietenpol-List: Re: Making Progress

Post by matronics »

Original Posted By: "Dangerous Dave"
It's easy.Plan E. Just wear a helmet when going in and out of the garage.Unless your family is a statistical anomaly, your wife is shorter than you, soshe won't be troubled by your troubles in this regard....Go Giants? We need a head-scratching emoticon. What's a Californian doing rootingfor Eli Manning and his team? [Rolling Eyes]Oh, wait a minute. Wrong sport.Never mind. :D--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Making Progress
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Post by matronics »

Original Posted By: "Clif Dawson"
Jim,The angle seemed to be the hot ticket.I used stainless machine screws about8" apart and will rivet it all together with AN470A's.Used .050 2024 T-3 Alclad,figeredI just bend up anything thinner.Dave--------Building a PietRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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Re: Pietenpol-List: Re: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: Gene Rambo
My deck is 9.5" tall. I'm 5' 8". The straps just clear myshoulders with my jacket on.I could have got another inch by running them through slotson the top of the deck and putting little covers over them,sort of like those teardrops on radial engine cowlings, likeon this 195. That would look kinda neat!Oh yeah, Notice that the deck profile is oval, not round.This puts the strap outlets higher while letting theoverall height be lower. It also fairs the deck/fuselage jointalmost flush.Clif90% done90% to go.> (21-5/8" width at seat back), I have just enough space to allow for proper > placement of the seat belt. >> Oh, I am sitting on a makeshift seat that has me ~5" off the floor of the > fuse. > Mark Chouinard________________________________________________________________________________
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Pietenpol-List: Re: Turtle Deck and Instrument Panels

Post by matronics »

Original Posted By: "K5YAC"
See Barnstormers.com=2C the Bucker used in TGWP is for sale!! We should all pool together and buy it!!!!!Gene ________________________________________________________________________________Subject: Pietenpol-List: Re: Turtle Deck and Instrument Panels
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Post by matronics »

Original Posted By: Jim Boyer
Beautiful work Clif, and neat suggestions. I'll keep those in mind in the eventthat I need to go higher.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 2 Nov 2010 19:27:16 +0000 (UTC)
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Post by matronics »

Original Posted By: Doug Dever
> To: pietenpol-list(at)matronics.com> > > I understand Dan=2C and I am trying my best to adhere to the plans=2C but in reality=2C I am 6'5" tall... something that Bernard didn't have to consider. I have sat in my fuselage with a simple seat that should closely replicate my position in the rear pit and I've found that the rear seat back/turtle deck front is way too low to provide for effective safety harness installation=2C not to mention the added comfort of an upper back rest. > > Unfortunately=2C I have a much larger than average framework=2C but I don't intend to keep that from letting me build or fly this airplane.> > --------> Mark Chouinard> Wings=2C Center Section and Empannage framed up - Working on Fuselage> > > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 357#317357> > > > > > > ============================================> > > ________________________________________________________________________________
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