The head of the Defense Advanced Research Projects Agency's LongShot drone program hopes to wrap up the preliminary design work tied to the effort's initial phase by the close of this coming summer, as officials continue to look toward fiscal year 2024 for the first potential flight test. For now, the three contractors involved in the effort -- General Atomics, Lockheed Martin and Northrop Grumman -- are progressing with performer trade studies and analyses, leaving DARPA “encouraged that the proposed...