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Old 10-26-2007, 09:15 AM
  #74  
kregan
 
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Join Date: Nov 2004
Location: Highland, MD
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Default RE: 2 for one - Carden 40% Extra 300 Build

I set it aside since I needed a couple of thing. One was the engine
or engine template which I now have, the second is the stabs.

When you do the stab modification I just posted you will need the
stab with the LE and TE install so you can set 0 incidence while
you are assembling the frame. You do this BEFORE cutting out the
elevator. I will show pictures of that when I do it but Walt's has
it documented in his 260 and 300 build.

I also wanted to get the foam sheeted and out of the way so I had
a clear table to assemble the motor box and side frames on.

One more thing.... I noticed that the holes in the plywood plates
that support the wing tubes were ever so slightly off center up and
down. If tou placed the ply parts on the wing tube and rotated one
against the other they were off just a tad in one direction .

A hair off in the center can translate to a 1/4" real fast out at the end
of the wing tube so I decided to wait and glue the ply supports in later
when I had the sid frames standing on end ready to glue to the motor
box. Then I will sheet the side frame and glue them to the motor box.

I don't know if that makes sense without pictures?

Hard points:
I am going to through drill all the control surface hard points later. I will
use a dowel that will run from one side of the sheeting through the foam
to the other side of the sheeting. I can do this with a drill press while
the surface is laying flat in the shuck.

Plywood triangle:
Having the milling machine I just milled off one half of a square to
make the triangle.


ORIGINAL: Mark786

Kelly,
Early in the thread you were working on the fuse but before finishing you went to sheeting. Did you finish the fuse without keeping us informed or did you set it to the side?
I am in the process of my fuse and I keep thinking I am putting something in the wrong order so it helps to see your completions.
I am way over thinking this thing but I keep worrying about installing something before its time and having a do over.
Like forgetting to do servo mounts or hard points at the wrong time. Fortunately most things can be corrected so I shouldn't worry so much.
My biggest worry on the fuse was cutting the diagonal pieces to fit well. I pulled out an old angle sander contraption I bought at a swap meet a few months ago and what a breeze. Almost looks professional.
Great build.
Mark