Fixed wing drones can do the same, but it's hard to get the necessary permits. (...

RangerScience · on Oct 31, 2016

I know they merge with aerial scans, but I don't know if it's drone-based.

metalliqaz · on Oct 31, 2016

Before 'drone' became a buzzword, they were just called remote-controlled airplanes.

khedoros1 · on Oct 31, 2016

To me, "drone" has some different connotations. It usually seems to mean either:

- Ability to operate out of the pilot's line of sight (through streamed cockpit video or autonomous operation)

- A lazy term for a multi-rotor (3 or more) aircraft

nerfhammer · on Oct 31, 2016

How does the drone know its exact elevation? GPS is only accurate within like 10 meters

mlla · on Oct 31, 2016

One option is to use Real Time Kinematics (RTK) GPS, which can provide accuracy close to few centimetres, see e.g. http://diydrones.com/profiles/blogs/navio-rtk-demonstration

nerfhammer · on Oct 31, 2016

Coool! Thanks.