The shorter a drone's propellers, the less efficient they are at keeping it airborne. That factor, along with compact, low-capacity batteries, is the reason that small drones can't fly for very long.

Drone builders have challenges they face with each new design. If the drones are too big, they can't fit into tight spaces where they need to operate. If the drones are too small, they can't carry the ...

Drones struggle with battery limits and visibility—this ultrasound system tackles both, enabling navigation in fog, darkness, ...

The new DJI drone features four propellers, giving it a similar look to the Avata 2, a first-person view drone launched in ...

This paper by TSAW Drones discusses the need for less noise in UAVs, how these toroidals can benefit the drone industry, how these propellers came to be and how exactly they reduce the noise. Also, in ...

Researchers have developed a small autonomous drone inspired by how bats navigate in the dark. Instead of relying on cameras ...

If you’ve ever flown or watched anyone fly a racing drone for any length of time, you know that crashes are just part of the game and propellers are consumables. [Adam] knows this all to well, decided ...

EPFL startup Flybotix has developed a dual propeller drone which offers a flight time which is twice as long as that of a standard quadcopter. Samir Bouabdallah has come up with an inventive ...

A tiny drone combines ultrasound sensing and AI to move safely through fog and darkness, reaching success rates as high as 100 percent.

EPFL startup Flybotix has developed a novel drone with just two propellers and an advanced stabilization system that allow it to fly for twice as long as conventional models. That fact, together with ...