"Fightin' Fujins" fly last F-16 sortie Published June 3, 2016 388th Fighter Wing HILL AIR FORCE BASE, Uah -- The 4th Fighter Squadron "Fightin' Fujins" flew a "fini" flight May 31 at Hill Air Force Base, Utah. A fini flight signifies a final flight and was significant for many Fujins as they transition to the F-35A Lightning II. The 4th FS is one of three squadrons in the 388th Fighter Wing. All of the squadrons will eventually transition to flying the F-35 and the wing is expected to reach full operational capability with 78 jets in 2019.