Generally speaking though, once a drone was built a certain way (like say as a fixed-wing aircraft or a VTOL), you can't easily change the way the machine departs for a mission or comes back from it.

The Swiss research team at the École Polytechnique Fédérale de Lausanne found that by adding bird-like legs to a fixed-wing puller-propeller drone, their machine, aptly deemed Raven (Robotic ...

We got our first look at Parrot's new plane-like drone, the Disco, at CES earlier this year.Tuesday, the company showed off the fixed-wing drone again, unveiling pricing ($1,300) and a release ...

The Ohio Department of Transportation is about to deploy its first fixed-wing drone to monitor freeway traffic, inspect bridge and road conditions and warn of chemical hazards. The aircraft is ...

Maximum propulsion efficiency of the small tip mounted props spinning a large prop is going to be 66.7% so a direct drive to two counter rotating large props, tandem or off set, will be more ...