25 Nov 2023
Riveting front bottom skin in position
Flame Master sealant arrived from Sling - I could not import it myself as it is hazardous. It is fuel tank sealant, but used as a corrosion inhibitor around the stainless steel rivets into the main spar carry through to prevent galvanic corrosion.
Mix 20g + 2g by weight according to the instructions and then installed the 62 stainless steel rivets through the front bottom skin into the main spar carry through.
Cleaned the strontium chromate primer off the fuselage inside skin where the static port holes were drilled to create a clean surface, then installed the static ports using the same fuel tank sealant.
The rest of the bottom skin rivets and control stops for the elevator and ailerons were then installed other than the 3 rearmost rows to allow for the fuselage join process.
Sling agree to replace one set of brackets for the toe brake assembly, these were sent with the sealant along with one replacement bushing. I de-riveted the old brackets and test-fitted the new ones which were a far better fit. So much better that I've decided two other sets of brackets must be replaced as well - will de-rivet those tomorrow. Painted the new brackets black after de-burring them.