Ducted fan UAVs maintain a higher payload to stored volume ratio. The vehicle can carry 4x the payload of a similar footprint fixed- or open-rotor UAV.
I have heard different things online about ducted fans vs open wing proppellers. Some say they are less efficient some say they are much more efficient!?
Ive heard of some people saying they are twice or even 4x more efficient. I'm thinking of designing a heavy lift drone and wondering if I shouls go with ducted fans..
Any input appreciated thanks!