WHAT? REAL SIMPLE : Enter up to 5 of
(ANY AIRCRAFT MODEL considered a SPY plane (strategic vs tactical recce))
This excludes some vehicles like Beech F-2, Lockheed F-4/5, NA Mustang F6, Boeing F-13 and the like unless you have documented evidence your entry was thusly employed. However, there were some craft that never made it into the air which will qualify, and a surprising number of "ferrets" –