Overall performance remark was directed towards all the different
antenna that would have to hang out in the wind producing drag. Remember
that with the KR we operate at the lower end of the power scale due to
design constraints. The Corvair, VW and Continental 0200 only produce =
around
100hp so every little detail is important to get the most performance =
from
your little bird. The outer wing panels would be an excellent place for =
CF
although I personally prefer Kevlar for the leading edge, but then again
that's my preference only. Nav antenna must be located at 90 degrees to =
your
flight path if using the copper tape method for internal antenna. The
logical place for this would be the stub wings IF the builder is not =
using
aluminum tanks in that area. Keep in mind that all antenna are affected =
by
metal structures anywhere close to them so watch for electrical wires,
control cables and other materials that can block the radio signals.
As for the buckling properties of carbon vs. e-glass. I suggest you
read a book called Composite Construction for Homebuilt Aircraft by Jack
Lambie. A wealth of information in that little gem. There are several =
other
books out there and I'm sure other on the KRNet will be happy to =
recommend
them. First and foremost the strength of fabric, be it carbon, Kevlar or
glass is in tension, not compression. That is the reason we have
substructures such as the foam. When the core material is layered =
between
the chosen fabric it is only then that compression strength comes into =
play.
The thicker the core material the stronger the structure (to a point) I
could go on but there are many on this list smarter than I so the best
advice I can give is read the book since it will answer many of your
questions and may even give you a few ideas of your own.
Doug Rupert
Simcoe Ontario
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