James Patton Rogers on X: "Drones are often considered among the most modern weapons of war, and their use doesn't regularly feature in histories of the Vietnam War. But as @daxe explains,
Ryan Model 147 - Wikipedia
Imagery - 548th and 67th Reconnaissance Association
Buffalo Hunter | This Day in Aviation
Operations – USAF Rotorheads
Imagery - 548th and 67th Reconnaissance Association