Photo Essay: Eglin F-35 number increases to four Published Sept. 2, 2011 EGLIN AIR FORCE BASE, Fla. -- Two F-35A Lightning II joint strike fighters were delivered here Aug. 31. Labeled as AF-10 and AF-11 by Lockheed Martin, the new JSFs bring the total count of the fifth-generation fighter aircraft here to four. View the slideshow.