Boeing shows its vision for a hypersonic spy aircraft
 

Lockheed isn't the only one hoping to make a hypersonic spy aircraft. Boeing has provided early details on its own design for a hypersonic tech demonstrator that would lead to a spiritual successor to the SR-71 Blackbird. In some ways, it's a logical...

https://www.engadget.com/2018/01/15/...-demonstrator/