Anyone who sees the demonstration footage from American start-up Sentradel immediately understands why its name is suddenly circulating in defence circles. Instead of slick renders or theoretical promises, it shows test videos from the field. At short range, an FPV drone dives into view, barely bigger than a bird. Within fractions of a second the gun turret turns with it, locks onto the target and brings the drone out of the sky. No hesitation, no visible human intervention — just a short burst and silence.
Six targets, one minute: autonomy in action (see video below)
Another video raises the bar even higher. In an open landscape, six separate targets have been set up, spread across the terrain. As soon as the system is activated, the turret starts working like an autonomous hunter: target after target is recognised, tracked and hit. Within less than one minute, all six targets are taken out. The pace and precision are impressive, precisely because it does not look like a laboratory set-up, but a realistic scenario directly applicable to the modern battlefield.
An answer to the asymmetric drone war
According to Sentradel, that is exactly the point. In recent years, FPV drones have changed the character of conflicts. They are cheap, agile and deadly effective, especially when used in large numbers. Traditional air defence is simply not designed for this. Nobody wants to fire an expensive missile at a drone costing a few hundred dollars. Sentradel argues that the solution therefore does not lie higher up the technological ladder, but lower: faster, simpler and scalable.
Machine vision as a digital gunner
Its autonomous gun turrets rely on machine vision and artificial intelligence to distinguish small, low-flying targets from their surroundings. Instead of radar or complex external sensors, the system literally looks at the airspace with “eyes”. As soon as a threat is recognised, the software takes over: tracking, predicting and firing happen in one fluid movement. The footage shows how little time a drone has left once it is spotted.
Not one system, but a defence network
What makes this approach extra interesting is the emphasis on mass deployment. Sentradel does not think in terms of one all-encompassing defence system, but networks of relatively cheap turrets that can protect vehicles, logistics hubs or infrastructure. In this way it tries to reverse the cost logic of the drone war. Where attackers count on numbers and low prices, the defence must play the same game — but with autonomous precision.
Why attention is shifting to autonomy right now
That vision fits seamlessly into a broader development. Armed forces worldwide are looking for ways to keep up with the explosion in drone use. Electronic interference does not always work, certainly not against fibre-optic FPV drones, and human gunners are simply too slow in massed attacks. Autonomous systems like Sentradel’s promise speed, consistency and endurance — qualities humans find hard to match.
At the same time, the technology runs up against familiar limits. A system that detects and takes out targets on its own inevitably raises questions about control, responsibility and reliability. But the footage Sentradel shows makes clear why that discussion is no longer theoretical. Systems like this already exist, already work and are visibly getting better.
The battle for seconds on the modern battlefield
Above all, the videos show one thing: reaction time on the battlefield is shrinking rapidly. Where there used to be seconds or minutes between detection and action, there are now fractions of a second. In that world, an FPV drone can make the difference — but just as well an autonomous gun turret that brings it down without mercy.
