||Things I learned:
I asked on the "abuser" group about reasons for the UNI fibers to
30 degrees. I wanted to substitute and use one layer of BID
Kevlar as well as the UNI.
Many people objected and gave their arguments and suppositions about
why the 30 degree direction was so structurally sound. I
was building a 4 inch wider
fuselage and I wanted more strength as well as additional safety and
friction wear for a gear up landing. Besides I wanted it
bullet proof if I ever flew over
IRAQ. :) The answers I got were so varied. I
studied more. I got some thoughtless answers. I got some
great answers. I even got an answer from
Nat Puffer and Marc Zeitlin. It turns out that other than the
additional torsional strength of applying UNI at 30 degrees is that it
also has less waste.
I ended up
using two 45 degree BID Kevlar and also a regular Rutan BID at
Kevlar is lighter and stronger with more tensile strength, but,
it is harder to
sand so I put it on first then covered it with the regular
With the use of the Infinity landing gear it is necessary to build a
sump tank for even greater safety and range. I learned the tank
should have a vent and wide
diameter inlet ports. I am using 3/8" but now considering cutting
them out and using 1/2 inch openings. My vent will go to a future
vent manifold for all tanks.
My Drain valve may get relocated. If it leaked it could blow fuel
inside the cowl. I may put a leak-proof cover over
it and leave it where it is.
I learned to plan different phases of the project so I would never have a
down time while waiting for some supplier to get me the parts, I could
just go on
to another part of the project and stay productive.
I had a hard time understanding the "whys" of the speed brake
layup. I kept reading and I asked a few questions and even tried
to think of better ways to
do it my own way. All reasons failed this time. I stuck to
the plans and the speed brake later turns out great.
Much of the perfecting of parts comes later in finishing or just
improve as you go. The NACA scoop was that way for me.
Finally it is looking quite professional.