&gt; without making any substantial change to civil (non-military) aviation.<p>Having known a bunch of aerospace people: this is in the works, it&#x27;s just that we won&#x27;t see it come out for a while because civil aero moves <i>really slowly</i> in an attempt to guarantee safety. Not &quot;high probability of safety&quot;, not &quot;we&#x27;re pretty damn sure&quot;, <i>guarantee</i>. The levels of paranoia and conservative use of technology they get to are unbelievable. It&#x27;s been roughly one military design generation, and only half a civilian generation, since the 1998-2000 crop of X-Planes. The military just got done deploying the delta-winged and fully-autonomous fruits of the 1998-2000 crop of X-Planes, which means that civilian aerospace is going to start working on it in another two or three years, will have designs in ten, and will start selling in fifteen.