130321-M-ZZ999-001 YUMA, Ariz. (March 21, 2013) An F-35B Lightning II from Marine Fighter Attack Squadron (VMFA) 121, Marine Aircraft Group 13, Third Marine Aircraft Wing, conducts a vertical landing at Marine Corps Air Station Yuma, Ariz. BF-19, piloted by Maj. Richard Rusnok, an F-35B test pilot, marked an important milestone in the evolution of the aircraft conducting the first short take off, vertical landing training operation outside of a testing environment.