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Re: Europa-List: Trial fitting cockpit module

Subject: Re: Europa-List: Trial fitting cockpit module
From: Andrew Sarangan <asarangan@gmail.com>
Date: Thu, 18 Aug 2011 00:32:23

I think my question may have been misunderstood. I realize the
importance of CM alignment to the fuselage. My question is, isn't this
alignment best done after the control tubes and fuel tank are
installed rather than on an empty CM? I was thinking that some
deformations to the CM may creep in during the work, so drilling the
alignment holes through the firewall may be best done when the CM is
nearly finished. Or, is the empty CM is significantly lighter and
hence easier to align?

What I often find confusing with the manual is that it says what to
do, but it doesn't say why. As a scientist, I hesitate to do something
until I understand why.


On Wed, Aug 17, 2011 at 10:01 PM, Bud Yerly <budyerly@msn.com> wrote:
> Andrew,
> Greg is right, the best way to a nice straight fuselage without anill
> fitting ora crooked module, bonding voids, and clearance problems. I have
> a plane in the shop now that when the stick was moved laterally,the CS
> 08actually hit the bottom of the fuselage. Another has a 1/4 inch dent in
> the fuselage sidewhere the builder failed to properly align the module with
> the fuselageand during bonding theclecos pulled the module down to the
> canoe crookedandnow he has a distorted fuselage.
>
> It is an airplane, if you don't trial fit and dry run through 5 times,
> you're doing it wrong. Ifyou don't want to use nuts and bolts for clecos,
> thentry #8 selftapping screws but don't pull them down hard so as to
> dimple the skin.
>
> Personally I use 1/8 inch US Clecos and when I go final I put in the screws
> on the last dry run and final. Just don't pull them down hard and squeeze
> out all that expensive Redux, and leaving a permanent dent to be filled...
>
> By the way, the same applies to all the rest of the plane.
>
> Happy building,
>
> Bud Yerly
>
>
> ----- Original Message -----
> From: Greg Fuchs
> To: europa-list@matronics.com
> Sent: Wednesday, August 17, 2011 6:09 PM
> Subject: RE: Europa-List: Trial fitting cockpit module
> <gregoryf.flyboy@comcast.net>
>
>
> Andrew,
>
> I went ahead and followed the manual with this. Fitting the cockpit module
> with clecoes (small bolts 1/16" or so work well for this -the flanges in the
> module are thick in the front) insures it is in its final resting position,
> level laterally with respect to the fuselage, and sucked up to the front. I
> remember during the fitting process, the need to re-install the cockpit
> module (to check clearances with controls etc) numerous times to verify all
> is good, and appreciated having finalized the positioning. Only 2 - 4
> attachment points were needed for me, two in front around the tunnel bottom
> and maybe a few on the sides, rear-ward.
>
> Hope that helps,
>
> Greg
>
> ___________________
>
>
> Is there a reason why chapter 11 (title: preparing the mouldings) calls for
> drilling cleco'ing the CM to the fuselage? Is this step not done best just
> before the p; Features Chat, http://www.matronnbsp; via the Web
> title=http://forums.matronics.com/
> href="http://forums.matronics.com";>http://forums.matronics.com
> _p; generous bsp;
> title=http://www.matronics.com/contribution
> href="http://www.matronics.com/contribution";>http://www.matronics.com/c================
>
>



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