JSF.mil > GalleryPhotos > SDD > A-Variant Testing The F-35 Lightning II Program is currently in the test phase. During this time they will assemble and test several engines and airframe. Some of the results of these tests be performed on the A-Variant (CTOL) can be seen below. Click on any of the thumbnail images below and find a high resolution version of the same image in the pop-up window.
