- Vertical Stabilizer
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Task: Picked up som NAS1097AD4-3.5 rivets
from Van's. As you may have seen in the previous log entries,
I put an extra hole in the VS skin with the C-Frame after
not having the correct hole set in the male die correctly.
I sought advice from VAF and over builders in my area and
found a solution. I used two flush dies on the C-Frame to
flatten the extra dimple. I then dimpled the correct hole
next to it. I found that the holes are very close together
and a rivet in the correct hole nearly covers up the added
hole. I decided to use what's called an "oops rivet"
to fill the hole better. The opps rivet is an NAS1097AD4-3.5.
Its basically an AN3 rivet with the shank of an AN4. This
means I will drill out the hole to #30 which will almost eliminate
the two holes next to each other. This will help retain structural
integrity and look just like all the other rivets in that
line. You'd never know if you looked at the VS.
rivet on the left is a standard AN426AD4-3.5 while the opps
rivet on the right has
the same countersunk head size, but a shank size of an AN4