to Log Index
Task: Finished shaping the R-915 stiffeners,
final drilled with the R-901 skins, deburred, and cut back
the blue acrylic along the rivet lines. Started assembling
the rudder skeleton. I purchased a piece of 3/8 MFD from Aircraft
Home Depot to drill into. It worked great with clecos in the
affixed a 3M ScotchBrite wheel to a drill press for edge deburring
the R-915 stiffeners. It made the process very quick. Notice
the bottom where the metal has cut into the wheel. This is
actually a good thing because it allows the wheel to debur
all around the edges of the metal.
The stiffeners are all cut to length, shaped,
and edge deburred.
final drilling the stiffeners to the left rudder skin.
Left side complete!
On to the right side
Right side final drilled
Cutting back the acrylic along the rivet lines.
Now the left side
began to put the rudder skeleton together. I clecod R-904
bottom rib to the R-902 spar. I drilled the center hole to
3/8 using R-902 as a guide.
Next was fabricating
the R-917 shim out of .032 Alclad. It was cut to 3 1/2 x 1
1/8. I clamped it to R-902, flush against R-904 and drilled
the two outer holes. I then clecoed on the R-405PD rudder
horn and match drilled the center hole.
Here the rudder skeleton is clecod together
to check fit.