hi,I am fresh. 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 anyone know how to solve the problems. could you…
"hi,I am fresh. 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 anyone know how to solve the problems. could you…"
"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.…"