Overview
Servicing of the antenna would be impossible due to no access for removal and connection
Manufacture
A aluminium 0.020'' 2024-T3 doubler was folded with 10 mm verticals on two sides. The assembly was riveted on a PCD around the 90 mm opening with 8 [eight] 3.2 mm pop rivets securing the doubler to the skin.
A series of holes were matched drill from the cover 3.2 mm through the skin and doubler, then the holes in the fuselage were fitted with M3 rivet nuts.
The center of the PCD was drilled 6 mm through and then the access hole cut with a 90 mm hole saw through the skin and doubler.
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| Access opening 90 mm |
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