Home News VIDEO: F-35B Airborne Gunfire Testing Complete VIDEO: F-35B Airborne Gunfire Testing Complete Nicholas HoffmanMay 17, 2017News,Technology The Air Test and Evaluation Squadron (VX) 23’s Pax River Integrated Test Force made aviation history when they completed airborne gunfire testing for the F-35B. U.S. Navy Video by Dane Wiedmann. Video of the Day