Actually, you can spot more than five U-2 Drangon Lady aircraft in this cool image
Beale Air Force Base, home of the 9th Reconnaissance Wing, north of Sacramento, hosts the last U.S. Air Force’s U-2 Dragon Lady spyplanes.
The image in this post shows five of them (along with two more U-2s whose tails appear right and left of the lined aircraft) in front of one of the base hangars.
U-2s, which are often deployed across the world, require some special landing assistance by chase car driven by experienced pilot who talk their colleagues aboard the U-2s during (take off or) landing: since the pilot’s view on a Dragon Lady is obstructed by the airframe, chase cars drivers provide additional information about distance to touchdown and altitude in order to make landings less tricky.
Image credit: U.S. Air Force