YANGDA multirotor cargo delivery demonstration

The YANGDA quadcopter drone YD4-1000S conducted one cargo delivery demonstration days ago by equipping it with one zoom camera and cargo delivery box, which simulated a natural search and rescue mission.
Find us here
Facebook: / shenzhenyangda
Facebook group: / 721371305635872
TH-cam: / @yangdaonline
Linkedin: www.linkedin.c...

[@brush_of_God]

If possible, I would recommend a hybrid pentacopter, with the main engine running on gasoline or diesel, and the course engines running on electricity.

[@brush_of_God]

I can write the principle of operation and justification.