Lockheed Martin subsidiary Sikorsky will display its prototype S-70UAS "U-Hawk" at this year's Association of the United States Army conference -- a UH-60L Black Hawk helicopter that has effectively been converted into an autonomous drone. With the Army divesting from its older Lima fleet of Black Hawks , Sikorsky bought one from the service, sawed the nose off, replaced the cockpit section with “actuated clamshell doors” and a ramp, and integrated its MATRIX autonomy technology, company executives explained to reporters...