|
Let me take
just a moment to vent on a recent experience I had ordering my fuselage
kit from Van's. On my confirmation, they wrote "VERIFY
7 OR 7A". I reviewed the order and it looked
fine so I put it in my file and didn't think anything of it.
The fuselage kit was supposed to be delivered around the time Airventure
was going on. Well, Airventure came and went without hearing
a thing from Van's confirming that the kit is on its way.
Well, last week, I still hadn't heard anything so I called Van's
to check the status. The polite gal on the other end of the
line said "ooh, we are waiting for you to confirm whether or
not your order was correct". WHAT!??!? If there
was a discrepancy, why didn't you send me an e-mail, call, or put
"call to confirm 7 or 7A. I am not ready for the fuselage
so it is no big deal and that is one reason why I order early.
However, I was kind of miffed at the vague, cryptic note provided
by Van's that I was supposed to extrapolate the need to call them
before they will ship my kit.
Okay, enough
venting. This weekend, Tami headed up to Minnesota to go to
a friends wedding. I am still working on the left fuel tank,
but didn't want to tackle any sealing without her help so I started
working on the ailerons. Working with fuel tank sealant is
great aversion therapy on this dang plane project.
After studying
the drawings in the aileron bracket sub-kit, I marked which holes
had to be countersunk. I no more than got started and my first
countersink bit "bit the dust" so to speak. The
pilot twisted right off of the bit. I was able to take a spring
loaded center punch and push the pilot out. I had two of these
#30 countersink bits so this was just a small setback.

I primed
all the components on Friday and let the primer cure overnight.
The AKZO epoxy primer dries to the touch in a few minutes, but is
seems to stay "soft" for several hours. Anyway,
I clecoed these suckers together and started riveting. Assembling
those were pretty straight forward once you figure out which way
the factory rivet heads go.

Just a series
of side pictures showing the rivet factory head orientations on
the various brackets.




After getting
all of the aileron brackets put together, I checked the hinge bearings
for free movement. They all work great with the exception
of one bearing. I can't move it by hand. I am going
to have to take that bracket back apart and probably order a new
bearing from Van's. I can't see anything abnormal with the
bearing so I am not sure what is going on.
UPDATE: The aileron bracket that had a difficult bearing to turn was the W-414 aileron hinge bracket assembly. I didn't have any trouble rotating the bearing while the aileron bracket was clecoed together, but after riveting, the bearing became very difficult to turn by hand.
I had gotten some feedback from another builder that Van's had shipped some of these brackets and the bearing recess's was milled to shallow. In the picture below, my original brackets are the ones with the primer in the bearing recess. In order to rectify this situation, I just ordered new brackets and a new bearing (in case the other one got damaged/deformed). When I primed the new brackets, I just put some light grease in the bearing recess. I was then able to spray the primer and after the primer dried, I just cleaned out the bearing recess of grease leaving it nice and clean.
After priming was complete, I re-assembled and riveted the aileron bracket. This time the bearing spun freely and everything looked great. I don't know if the primer in the bearing recess contributed to the tight bearing or not, but if I was to do it over again, I would make sure that I could remove any and all primer from the recess before riveting them together.
Setting my
aileron bracket issue aside for a while, I started cutting the aileron
stiffeners. There are 32 stiffeners for the two ailerons.
Pretty straight forward here too. Van's has them punched just
like the stiffeners in the empennage kit. Now if I can just
remember how I did that.... It has been a while.

After getting
crazy with the tin snips, the stiffeners are cut.

After cutting
them to size, I spent what felt like an eternity over at the band
saw cutting the tapers on the stiffeners. Then of course,
there was the time spent at the scotchbrite wheel deburring everything.

The band
saw does a nice job when cutting the taper on the stiffeners.
These scraps and SHARP... Don't ask me how I know that.

Between the
aileron brackets and stiffeners, this took most of the day.
I have been having a difficult time staying motivated lately.
It feels like this wing stuff is never going to end. I was
looking at my log entries and I have been working on the wings since
January. I had to take two months off for finishing up college,
but other than that, I have been pretty regular. At this rate,
I am looking at 3+ years to get this thing done. YIKES!!!
|