Pietenpol-List: Oscar penned the Firewall Forward of the latest Sport

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Pietenpol-List: Oscar penned the Firewall Forward of the latest Sport

Post by matronics »

Original Posted By: Ryan Mueller
Subject: Pietenpol-List: Re: Rudder bar and forward controlsActually, the stresses induced on the rudder bar from the rudder are almost inconsequential.Since the ends of the rudder bar are only connected to the rudderby means of cables (if built to the plans), then only one end of the rudderbar (the end that is pulling on the rudder) can be loaded at a time (you can'tpush a rope).What you need to be aware of is the potential for the pilot to bend the rudderbar, by inadvertently pushing with both feet. The pilot will undoubtedly haveboth feet pressing against the rudder bar at all times, and a bit of uncoordinatedfootwork, or panic can result in an excessive amount of pushing on both sidesof the rudder bar at the same time.Probably what you should do is take a scrap piece of the tubing you're using, thesame length as the rudder bar, and duplicate the center pivot arrangement,and secure this bar to something solid. Then position yourself in a well securedseat located at the proper distance from the rudder bar, and see how difficultit is to bend the sample rudder bar. You may be surprised how little forceit takes to bend the tube.There are very few metal parts in the plans that actually call for cro-moly steel,but the rudder bar is one. Methinks it is specified that way for a reason.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 1 Mar 2011 14:33:23 -0600Subject: Pietenpol-List: Oscar penned the Firewall Forward of the latest SportAv
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Post by matronics »

Original Posted By: Michael Perez
Michael, do you intend to carry passengers in your plane when it's done? WhileYOU might be comfortable with your rudder bar setup, how comfortable will yourscreaming passenger be when your rudder bar fails in flight (or while landing/taxiing)and you have no rudder control? Is this something that you REALLYwant to cut corners on? But, it is your plane and you may build it as you seefit... personally, I'll be adhering strictly to what's called out on the plansfor critical control assemblies such as this. Just my $.02--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 1 Mar 2011 13:41:35 -0800 (PST)
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Pietenpol-List: Re: Rudder bar and forward controls

Post by matronics »

Original Posted By: "Billy McCaskill"
Subject: CorvAircraft> Oscar ZunigaSquirrel Net The "Firewall Forward" section of the newest Sport Aviation was authored byour very own Oscar Zuniga.http://www.sportaviationonline.org/spor ... ___Subject: Pietenpol-List: Re: Rudder bar and forward controls
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> Pietenpol-List: Re: Rudder bar and forward controls

Post by matronics »

Original Posted By: "Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP]"
> --> Pietenpol-List message posted> by: "Billy McCaskill" > > Michael, do you intend to carry passengers in your plane> when it's done? While YOU might be comfortable with> your rudder bar setup, how comfortable will your screaming> passenger be when your rudder bar fails in flight (or while> landing/taxiing) and you have no rudder control? Is> this something that you REALLY want to cut corners on?> But, it is your plane and you may build it as you see> fit... personally, I'll be adhering strictly to what's> called out on the plans for critical control assemblies such> as this. Just my $.02> > --------> Billy McCaskill> Urbana, IL> tail section almost done, starting on ribs soon> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 407#332407> > > > > > > > Email Forum -> FAQ,> - MATRONICS WEB FORUMS -> List Contribution Web Site -> -Matt> Dralle, List Admin.> > > > ________________________________________________________________________________
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