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Tailcone / Fuse Template

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Phil.Perry(at)netapp.com
Guest

Posted: Fri Nov 06, 2009 9:19 pm Post subject: Tailcone / Fuse Template

I managed to chew up my template, so I'm wanting to double check my work

before committing some new holes into my longerons.  J



 



Can I get one of you with the longeron template measure the edge

distance (on the template) for the aft four bolt holes that hold the

tailcone to the fuse?  



 



I've got the hole spacings and distances from the trailing edge of the

longeron, but I need the edge distance because my edge is pretty chewed

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efdsteve(at)aol.com
Guest

Posted: Sat Nov 07, 2009 7:52 am Post subject: Tailcone / Fuse Template

The holes in my template got a bit elongated as well but here's what I measured from the end of the template:

    

   3/8", 1 1/8", 1 7/8", 2 5/8"

    

   Steve Weinstock

   40230  fuse and engine

 

 

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Phil.Perry(at)netapp.com
Guest

Posted: Sat Nov 07, 2009 8:03 am Post subject: Tailcone / Fuse Template

Thanks Steve. 



How far were the from the edge?  I've got the end measurements. 



Thanks again,

Phil

 

  From: efdsteve(at)aol.com <efdsteve(at)aol.com> 

To: rv10-list(at)matronics.com <rv10-list(at)matronics.com> 

Sent: Sat Nov 07 07:50:58 2009

Subject: Re: RV10-List: Tailcone / Fuse Template 

  The holes in my template got a bit elongated as well but here's what I measured from the end of the template:

    

   3/8", 1 1/8", 1 7/8", 2 5/8"

    

   Steve Weinstock

   40230  fuse and engine

 

 

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Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Sat Nov 07, 2009 9:48 am Post subject: Re: Tailcone / Fuse Template

Hey Phil,



It's been a while since we did this, but I think I remember this edge distance being important -- after the fact.  Make sure you get the holes close enough to the edge so that the nuts will turn;  and no more, so that installation works and you still have structural integrity.  We ended up using a nut to get the distance.



Later, - Lew

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Phil.Perry(at)netapp.com
Guest

Posted: Sat Nov 07, 2009 10:06 am Post subject: Tailcone / Fuse Template

Hi Lew,



Yeah, I asked a couple of questions around this topic a few weeks ago

and Bob Leffler helped me out with the measurements.



But late last night I built a mock up of the longerons and tested the

hole positions.  Unfortunately I couldn't keep the washers off the

fillet curve and moving the hole further to the edge compromised the 2D

edge distance for #12 (AN3) holes.  The only way I can really keep the

washers flat on the aluminum is to compromise edge clearance by 1/32 or

2/32 (1/16th).



That's why I am curious to see what the real measurements on the

template are.  I'm curious to know if Vans intentionally compromised the

edge distance a bit to get flat washers.  It's 1/8" aluminum angle, so I

could see them cheating a bit.



But before I commit holes, I want to be absolutely sure. 



Another option that came up is to maintain the proper edge distance, but

file the washer down where it intersects the fillet curve.  Then prime

the washer where the cadmium plate was removed.



Phil





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Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Sat Nov 07, 2009 10:13 am Post subject: Tailcone / Fuse Template

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johngoodman

Joined: 18 Sep 2006
Posts: 530
Location: GA

Posted: Sat Nov 07, 2009 10:29 am Post subject: Re: Tailcone / Fuse Template

Grind down the washer.

John

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