E-flite Byp Yak 3D ARF - Manual (Page 16)

  15. Position two .045" x 6" (1.15mm x 153mm)
carbon rods from the tips of the top and bottom
wing to the center of the strut. Leave at least
1/16" (1.5mm) of the rod exposed on both ends.
Apply CA to only the struts at the wing tips.
  14. Attach the remaining two strut reinforcement
disks to the inside of the struts. Once the CA
cures, slide one of the .045" x 6" (1.15mm x
153mm) carbon rods from the center of the cross
brace through the reinforcement. Carefully wrap
the intersection using string. Soak the thread at
the intersection with thin CA to secure the joint.
Note: Do not glue the carbon rod at the strut
at this time.
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