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.

Lockheed Martin's Sikorsky is developing autonomous, twin prop-rotor Nomad drones, based on the company's rotor blown wing ...

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 ...

This month, a beaten-up, Soviet-era propeller-driven plane taxied to a halt on a rural runway and two of Ukraine’s top air aces clambered out, one carrying a rifle. The pair, clad in olive-drab flight ...

Drones fly while rotating multiple propellers at high speed, which makes a loud buzzing noise during flight. Some drones have reduced noise by devising the shape of the propellers. In the 'Slow-motion ...

The Internet of Everything (IoE) — a term coined by Cisco — has given Sydney-based startup Propeller Aerobotics the foundation to develop drones that it hopes will reduce the complications of data ...