Day 23-27

This airplane has two 52-liter extended-range fuel tanks. The tanks require a particularly expensive 2-part sealant produced by 3M. There are a million ways to mess up building these tanks so we took A LOT of time to make sure everything we prepared just right before mixing up the sealant. Once you mix the sealant you only have so much time to work with it. So it can be a little stressful. Stopping once you start isn't really a feasible option, so once you begin you're committed.

All the parts were assembled, clear drilled, cleaned, and scuffed. The actual assembly of the tanks only took us about 3 hours per tank. But we spent another 34 hours on preparation. Definitely, a measure twice cut once sort of situation.

After both tanks were assembled and cured for 24 hours we cleaned the tank exteriors. They turned out really nice. In six days we'll be able to pressure test them. In the meantime, we can prepare to do the main tanks and start unpacking the fuselage kit.

We also wired the wings with electrical runs. Both wings have taxi, landing, and wingtip lights. The left-wing has an AOA, heated (regulated), Garmin pitot probe. So we needed to run two pressure lines (ram and AOA) along with the wires required for the regulated probe heater. The electrical install went very smoothly and the wings look amazing.