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My RV-8 Build Log
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Date: 9-20-2017
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Number of Hours: 2.00
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Manual Reference:
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Brief Description: Empennage Fairing - Lower Cover Plate
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Proceeded with match drilling the lower empennage cover plate which covers the EL horn. Platenuts will be installed on the airframe for the four lower holes, for the 4 upper holes, these are in common with a longeron, which is matched drilled, then tapped for a #6 screw. In fact, all of the holes in the lower fairing, which is aluminum which are in common with the longeron, are drill and tapped for a #6 screw.
The leading edge of the upper and lower empennage fairings are screwed to the airframe, with platenuts attached to the airframe. The upper empennage (fiberglass) is countersunk for the #6 screw, the lower (aluminum) is dimpled. The platenut rivets will be flush, so the #40 holes will be dimpled, and the #6 screw hole will be dimpled for the lower fairing, but flush for the upper fairing.
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Lower Cover Plate Match Drilling
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Countersinking the Empennage Fairing for AN507 screws
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Platenuts will be added, upper hole flush, lower hole dimpled
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