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Derek & Kims RV-9A Build Log
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Date:  4-21-2012
Number of Hours:  9.00
Manual Reference:  6-6 - 6-7
Brief Description:  Right Elevator Construction

Worked mostly on right elevator today, last step left on the right elevator is to construct the trailing edge... the AEX wedge and both skins are not pre-drilled for this, as they were on the rudder :(

The elevator construction seems to be the most confusing thus far. At times you naturally want to move forward knowing what you know, but the manual has you go elsewhere. I decided to trust the manual.... It also seems the instructions near the control horn are left over from the pre - pre punch days, requiring you to just keep trucking forward. not going to go into detail here or steb by step below, but if your building, you'll know what i mean - and you'll get through it too.

Fit up the counterbalance arms for both elevators, deburred, dimpled etc. Also locally beveled the aft edges of the counterbalance skins where they will be overlapping the elevator skin. This is for aesthetics. Did this on a scotch brite wheel mounted to my bench grinder. Later on - finished Riveting the right counterbalance arm together - left out the aft rivets that will later go through the elevator skin too.

Next i fit up the skeleton for the right elevator including the forward spar, root rib, tip rib, reinforcement plates, and control horn - installed this into the skins for match drilling. On the bottom of the elevator surface where the skin rivets to the spar i am using a combination of flush rivets (where accessible) drilled to #40 and blind rivets where not accessible drilled to #30. this is per the manual, only difference is i could use blind rivets all the way across the bottom of the spar. Disassemble, debur, dimple, etc. got to use the table again to work the C frame dimpler up into the leading edge to dimple the skin.

Riveted the hinge plates, nut plates, root rib, control horn to the spar forming the skeleton. Got some help from my wife to spread the skins apart while I back riveted all the stiffeners (16) to both skins. She also helped put those tiny rivets into all the holes and then we taped the
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Skin Riveted to Counterbalance Arm

Skin Riveted to Counterbalance Arm

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Hinge Reinforcement and Nut Plate

Hinge Reinforcement and Nut Plate

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Control Horn Match Drilling

Control Horn Match Drilling

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