Brief Description: Install the Vertical Fin Rib, Secure the rib with
Step 57: Install the Vertical Fin Rib You’ve cut the vertical fin rib to rough size, now it’s time to install it. The purpose of this rib is to align and close out the open top of the fin. It is installed with a single layer of cloth on the top side only. Stand behind the vertical fin and sight it to be sure it is in alignment with the centerline of the fuselage. If necessary, pull it straight to eliminate any twist prior to bonding in the rib.
Secure the rib with a Q-cell fillet followed with one layer of bi-directional cloth cut on the 45 bias. Cut this cloth large enough to extend all the way up to the top of the fin and the spar. Saturate it thoroughly, taking special care to relieve air bubbles at the forward end where the left and right fin shells join.
