Xiao Bian would have been sitting in the theater watching the giant screen attentively, seeing this wonderful drone acting in minutes, thinking about a half-day structure, and not seeing a balance moment, and thinking about it all the time. Spin problem? It wasn’t until the back of Peng’s play that I pulled back!
After watching the movie back home for a long time, I must have seen the "Mekong Operation" magician who was impressed by the drones in which Erlang was flying, because the one he flew on was not common in the market. Xiao Bian went to work this morning to search for all drones in the entire network, and could not find this one. In the end, Xiao Bian got the final result: The drone did not exist at all and could not exist! Refuses to argue:
First, the body underneath the Erlang drone is a cylinder with only a single-rotor propeller. This single-rotor aircraft will generate rotation and cannot be stabilized at all. To solve the problem of rotation, there is either a tailing or coaxial wing. To resist this rotation, the actual UAV is regulated by four rotors or even more rotors. A single rotor is not possible. The body is spinning and you can't stabilize the camera. Also, there is no visible light sensor in the real world.
Xiao Bian found the following figure, a coaxial biplane drone named Sprite, this is a single-axis dual rotor design can offset rotation, but it looks like this does not appear in the market, has not seen where there is The structure of the uniaxial twin-rotor should be too complicated, power efficiency, battery life and manufacturing cost.
The following figure shows a Russian single-rotor twin-rotor helicopter: Card-52