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Vertical Stab (rudder) question???

 
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Andrewlieser



Joined: 15 Mar 2008
Posts: 43
Location: Chicagoland

PostPosted: Mon Apr 21, 2008 5:07 pm    Post subject: Vertical Stab (rudder) question??? Reply with quote

Hey everyone, I am looking for a bit of advice on my rib alignment for my rudder. I am getting ready to rivet my rudder "skeleton" together this weekend and noticed that my 3rd rib is approximately 1-2 mm off center. The lip of the rib actually is recessed a tad on one side and protrudes a tad from the spar on the other. This my be knit picky or it may not be but I am new at this and would like to know if this is within the tolerances of the design. I am learning a great deal about what methods get me the best results right now so I apologize if this is a dumb question. Thanks in advance,

Andrew Embarassed


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Andrew Lieser
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Ron Lendon



Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI

PostPosted: Mon Apr 21, 2008 7:31 pm    Post subject: Re: Vertical Stab (rudder) question??? Reply with quote

Pictures? WebSite?

do not archive


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Andrewlieser



Joined: 15 Mar 2008
Posts: 43
Location: Chicagoland

PostPosted: Mon Apr 21, 2008 8:09 pm    Post subject: Re: Vertical Stab (rudder) question??? Reply with quote

Sorry here is a picture taken tonight it is taken at very close range and looks slightly exaggerated because of the angle

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DSCF2496.jpg
 Description:
Rib lip over spar lip measured to exactly 1mm over the spar lip.
 Filesize:  2.61 MB
 Viewed:  559 Time(s)

DSCF2496.jpg



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Andrew Lieser
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larry(at)macsmachine.com
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PostPosted: Tue Apr 22, 2008 6:26 am    Post subject: Vertical Stab (rudder) question??? Reply with quote

Not a dumb question Andrew,
and you don't have to be embarrassed as we've all made minor mistakes.
The hazard is not correcting them when we see them.
I'd recommend you make adjustments that allow you to lay a yardstick or
such across the ribs to get them aligned. It may only take
drilling out the rivets, or clamping and drilling for the next size
rivet, or making the rib over. This would be a good time to learn the
art of
replacing a bad part with one built from scratch. It'll save you a lot
of money. The misalignment would probably be easily seen, so
I'd go for the fix and hold onto your sense of what's right. Go for it.

Larry McFarland 601HDS at www.macsmachine.com
Andrewlieser wrote:
Quote:


Hey everyone, I am looking for a bit of advice on my rib alignment for my rudder. I am getting ready to rivet my rudder "skeleton" together this weekend and noticed that my 3rd rib is approximately 1-2 mm off center. The lip of the rib actually is recessed a tad on one side and protrudes a tad from the spar on the other. This my be knit picky or it may not be but I am new at this and would like to know if this is within the tolerances of the design. I am learning a great deal about what methods get me the best results right now so I apologize if this is a dumb question. Thanks in advance,

Andrew [Embarassed]

--------
Andrew Lieser


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=178323#178323



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bryanmmartin



Joined: 10 Jan 2006
Posts: 1018

PostPosted: Tue Apr 22, 2008 4:41 pm    Post subject: Vertical Stab (rudder) question??? Reply with quote

That much mis-alignment will probably be noticeable in the finished
rudder. Re-clamping and carefully drilling out the holes for A5 rivets
will probably fix the problem. If not, making a new rudder rib isn't
very difficult, its just a two straight bends.
Quote:


Hey everyone, I am looking for a bit of advice on my rib alignment for my rudder. I am getting ready to rivet my rudder "skeleton" together this weekend and noticed that my 3rd rib is approximately 1-2 mm off center. The lip of the rib actually is recessed a tad on one side and protrudes a tad from the spar on the other. This my be knit picky or it may not be but I am new at this and would like to know if this is within the tolerances of the design. I am learning a great deal about what methods get me the best results right now so I apologize if this is a dumb question. Thanks in advance,

Andrew [Embarassed]

--------
Andrew Lieser


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Bryan Martin
Zenith 601XL N61BM
Ram Subaru, Stratus redrive
Do Not Archive


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Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
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