hi，I am chinese student. Now, i was researching the copter with four fans. However , i was confused about the problems, like" how many size of the fans and speed of the motor for loading the copers? so, if you know how to solve the problems. could you help me for recommanding some material or send to my email: email@example.com
No comments yet!
You need to be a member of DIY Drones to add comments!