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  #1  
Old 11-20-2017, 10:02 AM
unitink72 unitink72 is offline
 
Join Date: Oct 2014
Location: Cedar Rapids, IA
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Default Why the big hole?

Drilling the hole in the tailcone aft bottom skin for the tiedown. Instructions say drill it to 11/16. I got to 1/2" and it already seems too big. I'm going on the assumption that just the eye bolt has to pass through.

Why would they want it bigger?

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  #2  
Old 11-20-2017, 10:23 AM
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9GT 9GT is offline
 
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Default

Most of the tie down eye bolts have a shoulder on them. If someone runs the tie down bolt all the way up it needs clearance, otherwise it will catch and damage the skin. If this is not of concern you can drill out just to clear the threaded portion of the eye bolt itself.
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  #3  
Old 11-20-2017, 10:49 AM
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And best practice for installing the anchor is to thread a 3/8" nut on it all the way and then install the anchor.
The nut allows for adjusting the alignment of the anchor and it extends it a little lower to help assure that the anchor will be the first thing to touch in a tail strike.
The bigger hole allows for the nut.
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  #4  
Old 11-20-2017, 10:49 PM
unitink72 unitink72 is offline
 
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Makes perfect sense. Thanks!
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