Last week, we successfully tested the oxidizer tank of the N2ORTH rocket for the first time. The tank is a type V pressure vessel, which features a thin fluoropolymer surface coating on the inside to ensure nitrous oxide compatibility. The empty mass of the tank is only 16.8 Kg with a volume of 160 l and a nominal operating pressure of 75 bar. We are very satisfied with the result and are excited to see the behavior in the blow-down test.