Chapter 7 - Fuselage
Exterior
Start:
12/05/05
Finish: 01/15/06
Total Time: 43 Hours
Now that we have an upside down boat, albeit a rather leaky boat at this point,
it's time to start contouring the exterior of the fuselage and preparing it for
glassing.
The first step in this process is to build the naca scoop on the bottom to feed
air to the engine compartment. This is built from using both urethane and PVC
foam, as well as plywood braces. After it's all floxed and microed together,
it's contoured by sanding. The final step is to glass the inside of it.
After the naca scoop is complete we move on to contouring the sides. This is
done by first blending the side foam into the contours at the firewall. Next we
contour the bottom corner comprised of the side, the lower longeron, and the
bottom.
This is where we had our first planning failure. After contouring the bottom the
next step is to install the built in NAV/COM antennas. We had forgotten to order
these until about 3 days before we needed them. So we decided to skip glassing
the bottom just yet and started working on contouring the top edges. With that
now complete we have little choice but to wait for the antennas to arrive so we
may glass the bottom, then the sides.
When the antenna kit arrived we spent some time figuring out exactly what would
go where. There are a couple of ideas on antenna placement. The Cozy plans
suggest putting the NAV antenna on the bottom of the fuselage. The documentation
from RST suggests putting the marker beacon antenna on bottom. Being the marker
beacon antenna is the largest, we chose to put it on the bottom, per the
documentation from RST.
After the antenna was embedded into the foam, it was time to glass the bottom.
Having learned that working with smaller pieces of cloth was easier (from our
chapter 5 and 6 experiences), we glassed the bottom using 'strips' of fiberglass
that were approximately 24" wide. We also learned that on these big layups
it was good to use much more slow hardener than fast, as it would keep the first
layers gooey and pliable throughout the entire layup.
The final step was to glass the sides. The plans has you put the fuselage on a
couple of A-Frames for the glassing of the exterior, but we found during the
glassing of the bottom that we were needing to stand on a step stool a lot to
reach. So for the glassing of the sides, we put carpet on the floor where the
fuselage was, and set the fuselage directly on the floor. This allowed us to
reach much easier when glassing the sides. Of course we had to wait until the
one side was fully cured before we could flip it over and glass the other side
though.
When all was through, we took what would be one of John's favorite pictures so
far...A picture of him sitting the pilot seat. It was a very exciting
moment for us, climbing into the front seat, as this was the time we had
promised to make a very important decision.
When we chose the Cozy, one of our reasons was that it was a plans built design.
We could determine, without mortgaging our house, if we had the skills, the
knowledge, and most importantly, the determination to build an airplane. Looking
at the plans and the price lists, we determined that for around $2k we could
build the fuselage, and that we would be able to determine from that point if we
could build the whole thing.
What did we find? Well, we didn't have the knowledge, but we are learning.
We didn't have the skills, but we are acquiring them. The biggest thing of all
though was the determination. We've found that even during times when we
felt completely clueless, all we had to do was step back a minute.
Rereading the plans, searching the FAQ site, searching the mailing list
archives, or simply asking the list, have always resulted in the answers we
needed. Are we going to continue on with building the rest? Absolutely. We
have reserved it's FAA registration number. We chose N204TF, in honor of
John's sister Tiffany, who taught us that life was too short not to reach for
the sky. We intend to do just that.
