Tuesday, August 30, 2016

Empennage

Empennage Fairings  ( 2 hrs )

Sect 12-06.  Trimmed Horiz Stab Tip Fairing to fit LH side.  Lots of iterations (can't add material back easily) to accomplish 1/8" gap.  I created a "template" to transfer front edge of Elevator to rear edge of Tip. Once trimmed,  I then removed 1/8" for clearance...checking swing clearance of elevator as I progressed.
1  transfer front edge Elev to Tip.
2     trimmed.
3  adding 1/8" clearance line
4  Clearance accomplished


Drilled #40, then FD #30 reamer, using cleco's as I progressed.  Cut template for the fiberglass sheet to fit just inside - slightly recessed for best clearance as Elev swings up and down.




Empennage

Empennage Fairings ( 2.5 hrs )   Monday, Aug 29

Completed blind riveting LH and RH Elev Tips.   First C'Sunk holes in RH Tip, and dimpled RH Elev.     Added cyanoacrylate to each fiberglass hole...it really strengthens the fibers surrounding the hole, since very thin after C'sinking each.  This enables fiberglass to be brought up to Elev surface without "stripping out" the holes with clecos, or the blind rivets when inserted.     Had time to prepare LH and RH Horiz Tip fairings to 1/2" flanges.
Dimpled & Countersunk.  Ready to blind rivet.