Extreme speed is once again becoming a prized quality at the Pentagon after a two decade long hiatus following the retirement of the SR-71 Blackbird . Now Lockheed says it can build 3800 MPH proof-of-concept jet in just a couple of years time,an aircraft that could lead to an fully operational “SR-72. extraordinary as that sounds, does the Air Force even need such an aircraft at all?Read more...
Source: jalopnik.com