Trevor & Dewey's RV-7 Construction Log
 
 

Empennage - Rudder

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Date: 9/13/2009
Time: 6.0
Task: Deburred all holes and edges, dimpled the skins and trim pieces. Machine countersunk the trailing edge and primed the reinforcement plates and stiffeners.

All the parts deburred




Match drilled the trailing edge into a piece of MFD and clecod in place.



Before





Here it is after a few holes have been completed. I set the cage to just below flush to allow the skin dimples to properly set in the countersunk holes.




The trailing edge has been countersunk on both sides for the double flush rivets to be installed.





Next on my list was to dimple the skins. I decided to experiment and leave the blue plastic on. It significantly reduced any mar marks from the male dimple dragging along the skin, and a rivet sits perfectly flush. Learning new things every day!




The left skin has been complete. I dimpled every hole except the leading edge. I'm not sure if they need to be dimpled now or after rolling the leading edges and match drilling to the right skin. I plant to call Van's tomorrow to verify.




I found that using the C-Frame to dimple the stiffeners was extremely fast and much easier than the hand squeezer. It only took about 10 minutes to dimple all 16 stiffeners.





All the right side stiffeners dimpled.




Prepping the stiffeners and reinforcement plates for priming.




I think I've got this HF HPLV gun figured out. The primer looks smooth with no orange peel.