Brought out the die grinder and put a Scotch-Brite wheel on
it to smooth the inside of all the lightening holes on the webs of all the
vertical stabilizer ribs. Worked great. Prior to this step, I ran the rib
flanges over a Scotch-Brite wheel mounted on a bench polisher. Still need to
use a fine file to smooth the metal between the rib flanges. There are piles of
ribs in the wings … so finding a system that works well now will be beneficial when
the wing kit arrives.
The die grinder with a Scotch-Brite wheel makes short work
of deburring holes in the ribs.
Those experienced will question my leaving the blue
protective film on the ribs … not to worry, the film will come off for primer
prep and a maroon Scotch-Brite pad will be used as a final smoothing step on
all edges as well as scuffing the metal for primer adhesion.
