Original Posted By: "Douwe Blumberg"
Hey Jim,Here's an article I wrote for the BPA which they never published. It's alot like what other guys have posted.Good luck!Douwe________________________________________________________________________________
Pietenpol-List: latex spraying
Re: Pietenpol-List: latex spraying
Original Posted By: "Andre B. Charvet"
Anyone else planning on attending the Waynesville fly-in/air show Labor DayWeekend?I will be there, WX allowing. Please look me up and say hi.Douwe________________________________________________________________________________Date: Thu, 21 Aug 2014 08:34:56 -0400Subject: Re: Pietenpol-List: latex spraying
Anyone else planning on attending the Waynesville fly-in/air show Labor DayWeekend?I will be there, WX allowing. Please look me up and say hi.Douwe________________________________________________________________________________Date: Thu, 21 Aug 2014 08:34:56 -0400Subject: Re: Pietenpol-List: latex spraying
RE: Pietenpol-List: Tail wheel angle?
Original Posted By: owner-pietenpol-list-server(at)matronics.com
I'd leave it alone until you try it. You want the shaft to be close tovertical, as yours is. If it deviates from vertical, it should leanslightly forward at the top. The reason for this is that if it leansslightly backward (as mine does), and the tailwheel starts to turn, thefurther the tailwheel goes off center the more force is put on the tailwheelto continue to turn further. In other words it has negative stability.Tailwheel BUnstableFwdTo illustrate, Tailwheel A has its pivot shaft vertical. No matter whatposition the tailwheel is in, it is neutrally stable and will stay in thatposition until something moves it. Tailwheel B has its shaft tilted aft ofvertical and is unstable. Once it begins to turn, it will rapidly turnfurther. Tailwheel C has its shaft tilted forward of vertical. Once itturns, it wants to return to trailing behind the airplane, so more force isrequired to hold it in the turn. Hopefully this makes some sense. You basically want the tailwheel shaftclose to vertical when the airplane is loaded, but if not vertical it isprobably preferable to have the shaft tilt slightly forward so the airplanedoesn't want to dart off in the weeds every time the tailwheel is turnedslightly.Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----
I'd leave it alone until you try it. You want the shaft to be close tovertical, as yours is. If it deviates from vertical, it should leanslightly forward at the top. The reason for this is that if it leansslightly backward (as mine does), and the tailwheel starts to turn, thefurther the tailwheel goes off center the more force is put on the tailwheelto continue to turn further. In other words it has negative stability.Tailwheel BUnstableFwdTo illustrate, Tailwheel A has its pivot shaft vertical. No matter whatposition the tailwheel is in, it is neutrally stable and will stay in thatposition until something moves it. Tailwheel B has its shaft tilted aft ofvertical and is unstable. Once it begins to turn, it will rapidly turnfurther. Tailwheel C has its shaft tilted forward of vertical. Once itturns, it wants to return to trailing behind the airplane, so more force isrequired to hold it in the turn. Hopefully this makes some sense. You basically want the tailwheel shaftclose to vertical when the airplane is loaded, but if not vertical it isprobably preferable to have the shaft tilt slightly forward so the airplanedoesn't want to dart off in the weeds every time the tailwheel is turnedslightly.Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----
Re: Pietenpol-List: Re: Tail wheel angle?
Original Posted By: Ken Bickers
Hello,Reading this post I recall a proble I saw in my tail wheel time ago, I am doingothers things and forget it by the moment, so, may be is the thing it happendto me if the word "shimmy" mean what I think (I do not find a good traduction),so, what SHIMMY mean?, realy, I cant find what it mean.. thank youregards--------Mario GiacummoPhotos here: http://goo.gl/wh7M4Little Blog : http://vgmk1.blogspot.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 21 Aug 2014 07:06:10 -0600Subject: Re: Pietenpol-List: Re: Tail wheel angle?
Hello,Reading this post I recall a proble I saw in my tail wheel time ago, I am doingothers things and forget it by the moment, so, may be is the thing it happendto me if the word "shimmy" mean what I think (I do not find a good traduction),so, what SHIMMY mean?, realy, I cant find what it mean.. thank youregards--------Mario GiacummoPhotos here: http://goo.gl/wh7M4Little Blog : http://vgmk1.blogspot.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 21 Aug 2014 07:06:10 -0600Subject: Re: Pietenpol-List: Re: Tail wheel angle?
Re: Pietenpol-List: Re: Tail wheel angle?
Original Posted By: Steven Dortch
Subject: Re: Pietenpol-List: Re: Tail wheel angle?
Subject: Re: Pietenpol-List: Re: Tail wheel angle?
Re: Pietenpol-List: Re: Tail wheel angle?
Original Posted By: Steven Dortch
Subject: Re: Pietenpol-List: Re: Tail wheel angle?
Subject: Re: Pietenpol-List: Re: Tail wheel angle?
RE: Pietenpol-List: Butt Ribs
Original Posted By: owner-pietenpol-list-server(at)matronics.com
The steel wing attach fittings go through the end ribs. You can build themwider at the spars, or modify them as needed during fit-upBarry NX973BP-----Original Message-----
The steel wing attach fittings go through the end ribs. You can build themwider at the spars, or modify them as needed during fit-upBarry NX973BP-----Original Message-----
Pietenpol-List: Re: latex spraying
Original Posted By: "PatrickW"
Thanks!!!Appreciate the illustrations Jack.. Visual aids really help the simple minded.:-)And to everyone for all the great "real experience" answers!I'm leaving it "as is" for now.Jim in PryorRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: latex spraying
Thanks!!!Appreciate the illustrations Jack.. Visual aids really help the simple minded.:-)And to everyone for all the great "real experience" answers!I'm leaving it "as is" for now.Jim in PryorRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: latex spraying
Re: Pietenpol-List: Waynesville/Red Stewart fly-in?
Original Posted By:Airfield=0APuryear, TN=0A=0A=0A=0A-----Original Message-----=0A Jack
Great Jack! Free brats there too? (kidding) after all I missed the 2014 BratFest at Brodhead!=0A=0A=0ADan Helsper=0ALowensloe
Great Jack! Free brats there too? (kidding) after all I missed the 2014 BratFest at Brodhead!=0A=0A=0ADan Helsper=0ALowensloe