Tag: #21
ER Tank Spar Nutplate Drilling and Countersinking
Author: Andrew Published Date: August 2, 2026 Leave a Comment on ER Tank Spar Nutplate Drilling and Countersinking
This morning was tedious, but necessary for the ER tanks. I drilled some #21 holes for the future #8 screws, but now I needed to…
ER Tank Attach Matchdrilling
With only an hour available to me today, I decided to tackle getting some initial holes drilled for the ER tank attachment to the main…