The F-35A achieved a quite impressive score during Red Flag 17-1, the U.S. Air Force’s premier air combat exercise underway at Nellis Air Force Base, Nevada, that pits “Blue Air” (friendly forces) against “Red Air” (enemy) in an all-out air war featuring air-to-air, air-to-ground, search and rescue, and special forces elements.
According to the pilots from the 388th and 419th Fighter Wings at Hill AFB, Utah, who deployed the F-35A Lightning II to the airbase off Las Vegas on Jan. 20 and began flying in the exercise Jan. 23, the air-craft has achieved a 15:1 kill ratio against the F-16 Aggressors, in its debut in the world’s most realistic and challenging exercise.

source: theaviationist.com