Drones

Multicopter drones are becoming increasingly useful, but their exposed whirling propellers can get damaged in collisions, and inflict injuries on bystanders. A new prototype drone addresses that problem, by copying the pufferfish.

If you've ever tried flying a cheap quadcopter indoors, you'll know how easily they can crash into walls. Now imagine trying the same with a much more expensive industrial drone. That's why the new Aertos 130IR is built to be tough.

Although there are now a few different crop-spraying multicopter drones, fixed-wing drones are faster and have a longer battery range. That's where the recently US-certified autonomous electric Pelican crop duster comes into the picture.

For people such as soldiers, security officials and airport workers, drones aren't always a welcome sight. That's why drone-jamming guns were developed, and the new Paladyne E1000MP "pistol" is said to be one of the most compact on the market.

Many people don't like the thought of delivery drones buzzing up to their door, with their propellers whirling dangerously close. The RDS1 setup was made with that in mind, as it drops packages in free-fall, but doesn't let them hit the ground.

If there's one thing that all types of first responders have in common, it's the fact that they put a premium on speed. The Recruit quadcopter was created for such users, as it can reportedly fly at 140 mph and has a claimed 3-hour flight time.

If you've ever tried controlling a drone with a traditional joystick unit, you'll know that it's difficult to get the hang of. An experimental new system, however, lets people actually write letters in the air with a drone, using a special glove.

If delivery drones ever do enter common usage, they won't be able to fly wherever they want. They'll have to stick to flight corridors, such as one that's set to open west of London. It's believed to be the first one located in unrestricted airspace.

Quadcopter drones certainly can come in handy, but those exposed propellers make them unsuitable for work in close quarters. Flyability's Elios drone doesn't have that problem, so it was recently used to explore deep ice caves in Greenland.

Zipline has announced a new partnership with Walmart to conduct pilot trials using its drones to fulfil health and wellness orders in one hour, with hopes of expanding to general merchandise if the first runs are successful.

Drones may be seeing more use by police forces, but they're still limited by short flight times, and the need for certified operators. Tech company Axon has set out to address the problem, by leveraging the existing Fotokite tethered drone.

While crop-spraying drones do have advantages over full-size piloted aircraft, they're limited by their battery range. Dutch startup Drone4Agro is developing a solution to that problem, though, in the form of a range-extended electric multicopter.