The elevator control horn is
also from G10/FR4 material. A slot was cut in the balsa block
on the right elevator and the horn
will be glued in with
thin CA after covering. Sanding the G10/FR4 parts improves
adhesion which is very good with thin CA.
The image is of the
bottom of the stabilizer. The joining rod is 1/8 carbon fiber.
Final installation of
the outer elevator hinge pins. Titebond III was used to lock
the pin into the stabilizer rib, the elevator pivots on the rod.
This series of images is
of the process of installing the Kevlar thread
in the mid bay of the aft fuselage. In this photo the thread
has been wound around the outside of the fuselage side and bottom
longerons to locate where to drill holes. 60 pound test
bonded Kevlar thread was used in this bay. 30 pound test as
used in the aft bay is strong enough for the purpose. The
Kevlar has almost no stretch. The Kevlar thread is available
from thethreadexchange.com.
Bonded
30 pound thread
Bonded 60 pound thread
A view from a little higher perspective, showing the initial holes in
the side longerons.
Holes were drilled at an angle using the thread as a guide.
A single length of
thread was used for two "helixes" around the fuselage. This photo
shows the first half of the threading
complete but not glued. Gluing is done only after all the thread has been installed and tensioned evenly.
Another view of the same stage of the process.
The second half of the helix wrapped around the outside to locate hole position and angle.