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Old 03-19-2017, 05:35 PM
asw20c asw20c is offline
Join Date: Jun 2010
Location: Edgewood, NM
Posts: 47
Default Crooked Elevator

On page 11-02 you mount the left elevator to the horizontal stabilizer for the first time to check travel up and down and for rubbing. I discovered that my inboard bottom leading edge of the elevator rubs against the lower skin of the horizontal stabilizer and after much close examination it appears that the hinge line that runs from the outermost hinge to the center slopes downward; enough that the lower leading edge of the elevator extends about an eighth of an inch or so below the level of the lower horizontal stabilizer skin. How can this be? Everything else has been spot-on; plus the hinge brackets on the elevator as well as those on the horizontal stabilizer were prepunched. What can be done about this? There is no adjustment for up and down; only for and aft with the rod end bearings.
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Old 03-19-2017, 07:45 PM
mturnerb mturnerb is offline
Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 306

Photos would help. If you run a string through the HS hinge brackets end-to-end, does that line stay parallel to the aft HS spar web? Or if you measure from the spar web to the hinge bracket holes that were final drilled #12 in Section 08-02 is that distance consistent? If you sight down the aft spar web, is it straight? (Is there any twist in the HS aft spar web or elevator forward spar webs?)

On the elevator if you can do the same with the rod ends - measure to be sure center of the rod end nutplates on the forward spars to spar web is the same.

I did have to extend the rod ends out about 2 turns to get full motion on the elevators without binding.
Turner Billingsley
RV-14A Empennage in progress

Last edited by mturnerb : 03-19-2017 at 07:48 PM.
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Old 03-20-2017, 06:55 PM
asw20c asw20c is offline
Join Date: Jun 2010
Location: Edgewood, NM
Posts: 47

Great suggestions. I won't get a chance to try these these ideas until this next weekend, but I'll post my results.
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