Brodhead Pietenpol Association

Original Posted By: Ryan Mueller
I am installing a flop in the center of my wing and want to know if makingit the same width (12" cord) as the aileron is a good idea or should it bewider? Basically it would be built like the a 3rd aileron just shorter inlength, about 24 inches long. Speaking of length, should it exstend beyondthe center section lendth?ChrisSacramento,CaWestcoastpiet.com________________________________________________________________________________

Original Posted By: Chris
Chris,Making the flop the same width as the aileron is good. Extending the flop to the left is a good idea with the one piece wing. It is a bit more complicated with the three piece wing.Greg Cardinal ----- Original Message -----

Original Posted By: Lloyd Smith
Subject: Re: Pietenpol-List: Wing flop

Original Posted By: shad bell
i am about to figure out how to make mine work now.I have my wings rigged and amgetting ready to make up the X-brace cables.-I kinda wonder why they are necessarywith the X-brace rods in the wings to control drag. but anyway I'll usethem since the plans call for them and they can carry part of the flight loadsalong with the struts. but my wing flop section is the same width as the centersection. so that leaves about 2" gap on each side to hide.I'm guessing I'llend up making a gap cover to come back the the rear spar and then somethingseparate that will be attached to the flop to close the gap but let it swing upwith it.RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 18 Apr 2010 17:02:51 -0700 (PDT)

Original Posted By: "Pieti Lowell"
Subject: Re: Pietenpol-List: Parts to goShadI have the bendix shower of sparks and have no box, so I am planning on a set of slicks with an electrical system. Shower is supposed to be a good system, however I need to have mine serviced then buy a box from somewhere. Ithink the cost of that out weighs the set of new slick mags. At least that's what I heard, anyway.I plan to keep pricing and looking for a deal on eitherJohnIn a message dated 4/18/2010 8:12:48 P.M. Eastern Daylight Time, aviatorbell(at)yahoo.com writes:--> Pietenpol-List message posted by: shad bell John, what mags are on your 235 c1b. I am using the same on my Jungster, but with out starter or electrical system. I believe they originally had s-400 series mags which had the "shower of sparks" ignition retard for start. They use a starter vibrator (transformer) unit instead of a impulse coupling. Do you plan on having electric, or starter? I would be interestedin how your set up works either way. Shad________________________________________________________________________________Subject: Pietenpol-List: Re: Wing flop

Original Posted By: "Clif Dawson"
The flop has nothing to do with the inverted position, Douwes flop was total irrelevant.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: Rick Holland
For what it's worth, here's my flop.The trapzoidal areas will be covered with lexan, topand bottom. Much more visibility in a turn.The dragwires inside the wing keep the wing panelsthemselves square. The strut X bracing keep theentire wing from twisting back and forth as a unit.Suppose you had a situation where there was more dragon the right wing and less on the left. This would tryto push the right wingtip back towards the tail and movethe left foreward thus twisting the wing about the center.The X bracing works to keep that under control, amongother things. ClifI was always taught to respect my elders,But it keeps getting harder to find one.> >> i am about to figure out how to make mine work now.I have my wings rigged > and am getting ready to make up the X-brace cables.-I kinda wonder why > they are necessary with the X-brace rods in the wings to control drag. my > wing flop section is the same width as the center section. so that leaves > about 2" gap on each side to hide.I'm guessing I'll end up making a gap > cover to come back the the rear spar and then something separate that will > be attached to the flop to close the gap but let it swing up with > it.Raymond________________________________________________________________________________Date: Sun, 18 Apr 2010 21:46:01 -0600Subject: Re: Pietenpol-List: Re: Wing flop

Original Posted By: Lloyd Smith
Subject: Re: Pietenpol-List: Re: Wing flop

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Chris,Here's a pic I took of Larry Williams' Piet last year. Looks like he choseto make the flop same width as the C/S, with the fairing attached.Gary Boothe Cool, Ca. Pietenpol WW Corvair Conversion, mounted Tail done, Fuselage on gear (18 ribs down.) _____

Original Posted By: Dan Yocum

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Wing flop

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Wing flop

Original Posted By: Dan Yocum

Original Posted By: shad bell

Original Posted By: helspersew(at)aol.com

Original Posted By: "skellytown flyer"
My two cents on the wing flop issue. I use thecentersection flop on 41CC every single time Iget in or get out of the airplane. It is thefull width of the (3-piece wing) centersection,is hinged, and is square across the back (notradiused cut out). My entry technique is toraise the flop with my head as I climb into thecockpit, or vice-versa as I exit. I do notflop it all the way over onto the wing becauseI've had an instance or two where the windflopped it right back down and pulled one ortwo screws through the metal of the piano hinge.Normal practice is to park with the nose intothe wind so the flop is always in danger ofbeing flopped back down by the wind.The centersection flop on 41CC has latches butI've never latched them except when parking theairplane in high winds. It never moves inflight, despite stories about how the lift overthe top of the wing will pull it up in flight.If anything, the flow of air over the wingtends to hold it firmly down, and when I pushup on it in flight, it takes a very firm pushto hold it up in the airstream.The flop definitely serves to shade the pilotwhen it's sunny and definitely helps to pushthe windstream back past the pilot instead ofdown into the cockpit. When it's cold, I leanslightly forward to get behind the windscreenand out of the slipstream pouring off the backof the flop.The radiused cutout with grab handles doeslook nifty though.Oscar ZunigaAir Camper NX41CCSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net ________________________________________________________________________________Subject: Pietenpol-List: Re: Wing flop

Original Posted By: Tim Willis
The information about them is sure helpful. I am not going to change mine rightnow since I want to get it flying, but what if a fellow bolted a simple handleto the backside of the rear spar on the center section to grab climbing in andout.and then slotted the front of the flop to close over it? sure might bea neat compromise.I sure may try it on mine at some point. RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 20 Apr 2010 09:41:31 -0500 (GMT-05:00)

Original Posted By: Lawrence Williams

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Re: Wing flop

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Clif,I saw this last week when you posted it, but didn't really read it 'tilljust now. I like your lexan idea!Gary BootheCool, Ca.PietenpolWW Corvair Conversion, mountedTail done, Fuselage on gear(18 ribs down.)-----Original Message-----

Original Posted By: Jim