Battlefield surveillance
History's Unique AircraftNorthrop Tacit Blue: Ugly Duckling of Stealth Aircraft
While a Northrop official described the Tacit Blue as one of the most unstable aircraft ever flown, its data aided in the development of several weapon systems.
Jason McDowell![](https://www.flyingmag.com/uploads/2022/10/USAF-Photo-Front-View-e1666632704684.jpeg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
![](https://www.flyingmag.com/uploads/2022/09/Pilot-and-copilot_adobe-stock-rs.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
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