Scientific American, 2017: "Quadcopter crashes with a helicopter and plane—the first-ever in the U.S. and Canada, respectively—show that such encounters are no longer hypothetical

Inspection at a nearby airfield revealed evidence of something that had never happened before—a civilian drone had plowed into a crewed craft in U.S. airspace. That sent the Army, the National Transportation Safety Board and other government agencies scrambling to investigate how and why this had happened...

Scientific American, 2017: "Quadcopter crashes with a helicopter and plane—the first-ever in the U.S. and Canada, respectively—show that such encounters are no longer hypothetical

Inspection at a nearby airfield revealed evidence of something that had never happened before—a civilian drone had plowed into a crewed craft in U.S. airspace. That sent the Army, the National Transportation Safety Board and other government agencies scrambling to investigate how and why this had happened...