Pietenpol-List: Another Question on Empennage..

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Pietenpol-List: Another Question on Empennage..

Post by matronics »

Original Posted By: "Glenn Thomas"
Since I am in the thick of the tailfeathers right now I'll add my experience withthem. The pieces where the hinges attach are 1" x 1" before you rabbet outthe profile shown on the plans. If you made it all flat, I would not recommendmaking anything thinner than on the plans. That means that the LE and TEwould all have to be 1" x 1". TE piece is only 5/8" on plans which means thatyou would be adding 3/8" to it's thickness. I think it would look awful andbe heavier in a place where weight is the last thing you would want to add. Ifound a method that is pretty easy to work with, follows the plans and looksvery nice as well (at least it does to me).This shows how I started the stabilizer...http://www.flyingwood.com/index.asp?page=6&filter=0I did the rabbets with a router on the stabilizer but found a tablesaw much easierwhen I did the elevators which are shown here....http://www.flyingwood.com/index.asp?page=3&filter=0I just think you would regret the weight penalty and appearance if you went withthe 1" x 1" dimension all around.My $0.02--------Glenn ThomasN?????http://www.flyingwood.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Another Question on Empennage..
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Re: Pietenpol-List: Another Question on Empennage..

Post by matronics »

Original Posted By: helspersew(at)aol.com
I have the members for the rudder and vertical stabilizer layed out on the jigwith their ultimate positions marked out. One thing I was wondering about isas follows.. The dimensions on the plans show the dimensions for the rudder heightand fin height as if they butted up flush against each other. Has anyonefound that, with the gap due to hinges, that their rudder extends below the bottomof the fuselage? If you project the angle of the top of the rudder to wherethe curvature begins on the fin, it would make you have to lower the ruddera bit (1/2" - 3/4")? In that case I would rather just make the rudder a littleshorter. Thanks--------Glenn ThomasN?????http://www.flyingwood.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Another Question on Empennage..Date: Thu, 19 Feb 2009 13:13:32 -0500
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Pietenpol-List: Another Question on Empennage..

Post by matronics »

Original Posted By: Ben Charvet
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RE: Pietenpol-List: Another Question on Empennage..

Post by matronics »

Original Posted By: "Phillips, Jack"
Subject: Pietenpol-List: Oklahoma PietsYou could also go see aviation guru/historian, nice guy Chet Peek in Norman, OKwho is well alongbuilding his Model A Ford Piet. Mark--If you do build a Pietenpol make sure to build the long version--the 1966fuselage, otherwiseyou'll never fit. The earlier fuselages are approximately 9.5" shorter in overall length and legroom and bifocal room is compromised. Also-- consider using an 0-200 to get you safely out of airports on hot days whereyou have talltrees at the end. Also--consider making the wing longer for more lift because with your weight you'llneed it. Mike C. ________________________________________________________________________________Subject: RE: Pietenpol-List: Another Question on Empennage..Date: Thu, 19 Feb 2009 13:43:40 -0500
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Pietenpol-List: Re: Oklahoma Piets

Post by matronics »

Original Posted By: "K5YAC"
Dan/Jack,I think it's all because the plans don't account for the hinge gap, thanks forconfirming my suspicion. I'll probably plan for a 5/8" hinge gap and recalculatethe rudder height. I doubt it shows under the stabilizer and elevators andwhen you're far enough away to see it, you don't.Ben,Sounds like you are 6+ feet tall. Is that the case? I was just planning on makingmine standard size, but then I'm just average height (5' 10"). I've heardthat tall guy's torso's out in the slipstream interferes with the rudder effectiveness.Anybody my size have a problem with the standard rudder?Thanks to all for ideas and comments.--------Glenn ThomasN?????http://www.flyingwood.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Oklahoma Piets
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Post by matronics »

Original Posted By: Tim Willis
Thanks for the info Mike. I've received several replies to my initial post. Isure do appreciate the warm welcome, and the genuine nature of all who have respondedhere and via e-mail. I've had my nose buried in several different articlesand threads. Sure are a lot of these ol birds out there. Good to know.A few of the folks that have responded are locals that have invited me to comevisit and see their plane or project. There are at least 3 completed and 3 moreunder construction in my local area that I've learned of since yesterday. Jim Ballew is just a few miles north of my location. I spoke to him briefly onthe phone earlier today, and I plan to go visit with him tomorrow evening. Really looking forward to that. Here are a few more questions for anyone who wants to chime in. Maybe I'll comeacross the answer to these questions as I continue to read, but right now I'munclear...You mention the O-200 engine. How about the Corvair? I've been reading aboutthose, and from what I gather they are powerful and reliable. This would be asuitable substitute for the O-200, right?What about spruce kits? At this point I really don't know where to get good qualitywood locally (I'll probably learn as I visit more), but I've also read aboutpre-cut spruce kits that are available for this planform. I would be interestedin the time savings that a high quality pre-cut wood kit might offer.I spoke to a Canadian company that wants $2500 for the wing, fuse and empannage...worth the money?Thanks again!--------MarkRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 19 Feb 2009 13:39:36 -0600 (GMT-06:00)
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Pietenpol-List: Re: Another Question on Empennage..

Post by matronics »

Original Posted By: "Mild Bill"
ktmaustin(at)sbcglobal.ne wrote:> Hi Bill,> I guess that was a bit cryptic.> The one piece wing implies no dihedral.> This doesn't add up to much stability in the roll axis.> You don't really notice it but if you look down at the stick while you're flyingit is pretty much constantly moving.> My friend that grew up on Cub's termed it 'the butter churn'.> Taking the dihedral out of a plane does seem to make it faster.> Kevin > > One of my Dad's friends took all the dihedral and washout out of the wings of aPiper Tri-Pacer. It was good for about a 3 to 4 mph increase in cruise speedand the handling characteristics were not seriously affected. (There was stillsome dihedral effect because of the enclosed cabin.)--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Another Question on Empennage..
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Pietenpol-List: Re: Another Question on Empennage..

Post by matronics »

Original Posted By: "Glenn Thomas"
Thought I'd start a little fire, then throw some gasoline on it:Put a V-tail on a Pietenpol and the size of the pilot would have no effect on theeffectiveness of the tail surfaces. :D--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Another Question on Empennage..
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Post by matronics »

Original Posted By: Michael Perez
I think this will work... I am making the rudder 1/2" shorter than plans. If Istill end up too long I'll do what Jack did. If I come up too short, I can makeup the amount with a small strip of spruce and some glue. I think it willcome out pretty close though. Thanks for the ideas.--------Glenn ThomasN?????http://www.flyingwood.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 20 Feb 2009 07:09:19 -0800 (PST)
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Pietenpol-List: Re: Another Question on Empennage..

Post by matronics »

Original Posted By: "carson"
I have made mine to the F+G manual and this is the result;Also there was discussion on flops. This is mine. It will beclear plexi top and bottom.Easy strong arm airbrake too! :-)Clif The dimensions for the various parts which the rudder attaches to do not add up If you build the fin & fuse according to the plans, then the rudder will hang down below the bottom of the fuse by around 11/2 inches. Thanks Graham Hewitt------------------------------------------------------------------------------ Checked by AVG - www.avg.com 02/20/09 19:22:00________________________________________________________________________________Subject: Pietenpol-List: Re: Another Question on Empennage..
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Post by matronics »

Original Posted By: "Rob Stapleton, Jr."
Funny this has come up as I have just finished fitting the tail and have been tryingto find where I have measured wrong this time.My rudder hungs down about 1/2 inch so I think I will cut it off to be level withthe bottom of the fuse.CarsonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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Re: Pietenpol-List: Re: Another Question on Empennage..

Post by matronics »

Original Posted By: H RULE
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com=0A Re: Pietenpol-List: Birthday?=0ADate: Sat, 21 Feb 2009 10:13

Post by matronics »

Original Posted By: Message ----- =0A Lawrence Williams =0ATo: Jim Markle ; Pietlist =0AS
- But thanks for all the nice thoughts.=0A-=0AA couple of you knucklheads are going to hear from me offline!!!- :-)=0A-=0AIt's a bit chilly in Northeastern Oklahoma today but I think I'll go put some wood in the stove and get my shop warming up...this would be a good day to work on a Model A-engine mount!=0A-=0AOne more thing.- These recent paint/latex/stitts/etc discussions?- Great!- Thanks for all the good advice.- That thread was very helpful.=0A-=0ACheers to all....=0A-=0A-=0A----- Original
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