A four-rotor drone built by N3XT, the experimental arm of German company Quantum Systems, has reportedly reached 699 km/h (434 mph) in level flight. The Apex Recordhunter, as the prototype is called, beat the previous official record of roughly 657.59 km/h (408.7 mph) for an electric aircraft. It's a technology demonstrator built by the same engineering team developing Quantum Systems' interceptor program, and the two platforms share underlying know-how rather than hardware. Neither result has been certified as an official speed record, but both mark concrete performance benchmarks for drones built to intercept Russia's fastest attack drones. Source: Quantum Systems