Monday, April 4, 2016

Empennage

Elevator (4 hrs)

Continued Sect 9-04 w/ Step 4 & 5.  Drilled 2 holes in end of Trim Tab Hinge while designating one Aft and other Fwd half.  Sect 9-05 Step 1&2:  Drilled 2 holes in Left Front Spar at 3/8" and 5/8" using Uni-Bit (tested/practised 1st w/ drill press on sample alum since 1st time doing this procedure).   Cleco'd Left and Right Front Spars to Bottom Elevator Skins.
Right side shown

Sect 9-06 Steps 1-4:  Assembled Ribs to Front Spar & Bottom Skins, along with Rear Spar and Root Rib.  Also added Gussets and Shear Clips.    Left side has more w/ doubler, etc for Trim actuator mounting.



Left side with Trim Tab mounting, etc.

Sect 9-07 Steps 1-3:  Positioned precisely Fwd 1/2 piano Trim Tab Hinge.  Match Drilled #40 with extra care to insure aligned...1st with clamps, replacing with clecos as hole drilled.   Trimmed excess length of hinge.

Trial re-attach Aft Hinge ...perfect alignment since pin slips in easily. 

Step 4:  Cleco & Clamped Aft 1/2 Hinge to Trim Tab Spar.   Ready to match drill tomorrow.