Correlated fuel tank leak test with plugged overflow tubes - 7 hours

The fuel overflow tubes were plugged with sika-filled 1/4" tubing pressed over the outlets. Even after 7 hours no discernable drift between the manometer levels occurred. This confirms the sir-tight nature of the AN4 overflow tube flare fittings. A bubble test was also done of the AN fittings confirming this result.

The fuel tanks are ready to attach to the main spar.