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Old 03-30-2005, 01:54 PM
alpinelakespilot2000 alpinelakespilot2000 is offline
Join Date: Jan 2005
Posts: 3,542
Default Drilling Elevator AEX trailing edge wedge

I seem to remember someone asking this question before, but can't find it...

For the elevator trailing edges, the AEX comes undrilled. Instructions say to draw a reference line 7/32 to 1/4" from FORWARD edge of AEX and drill on that line.

If I do so, the AEX sticks out significantly beyond the trailing edges of the elevator skins. Is this normal? Is it left there or is it eventually ground down to be flush with the edges of the skins?

Any suggestions?

Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto

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Old 03-30-2005, 03:32 PM
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N916K N916K is offline
Join Date: Jan 2005
Location: Tehachapi, CA
Posts: 538
Talking use the force to guide you

There's no need to have it sticking out much. Make it look good and you'll be money. Just watch out for putting a hook in the trailing edge, easy to do on the elevators.
Santa Ana, CA
RV-9 at KFUL
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Old 10-10-2018, 02:40 PM
Copperhed51 Copperhed51 is offline
Join Date: May 2018
Location: Queen Creek, AZ
Posts: 4

Reviving this thread from the dead. Im in the same boat with the trailing edge wedge. When I draw the line as the plans suggest, the wedge protrudes from the trailing edge by 3/32. What is the consensus on this? Do I ignore the plans and just line up the trailing edge of the skin and wedge and get to drilling or do I follow the plans and then file off the extra wedge later? Thanks!
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Old 10-10-2018, 02:55 PM
PilotjohnS PilotjohnS is offline
Join Date: Jan 2016
Location: Southwest
Posts: 691
Default my take

I left mine sticking out. For me, if the trailing edge is made flush, the countersink on each side would hit. I figure it is better to have it stick out than to compromise the double flush rivets.

If you like, I think one could take a file and file the APEX to be flush with the skins. this would leave a slightly blunt edge, but I think that's OK aerodynamically.
John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

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Old 10-10-2018, 02:57 PM
Copperhed51 Copperhed51 is offline
Join Date: May 2018
Location: Queen Creek, AZ
Posts: 4

Ok, that’s kind of the way I’m leaning. Thanks for the reply. How was the alignment with the trim tab with the wedge sticking out? I found another thread about this and it looks like your answer is the consensus. Onward I go!

Last edited by Copperhed51 : 10-10-2018 at 02:59 PM.
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