March 21, 2019
D-21 Declassified: NRO Technology Ahead of its Time Finds a New Home
BIRMINGHAM, Ala. —
Stealthy, sleek, able to fly at speeds over Mach 3.3 at an altitude of over 90,000 feet, the NRO’s D-21 drone, 1960’s technology ahead of its time, landed in a new home at the Southern Museum of Flight (SMF) here. On March 21, 2019, the Museum hosted historians from NRO’s Center for the Study of Reconnaissance (CSNR) in an event about the D-21