How Do mini rc helicopter Work

These micro models are usually controlled by a 2 channel proportional infrared control system that controls the up/down and left/right movement. Some mini rc helicopter take into account the main rotor speed and adjust the tail rotor to compensate as you ascend or decent while with others you'll need to manually adjust the trim.


The whole system is powered by a small lithium polymer battery that is usually charged off the infrared transmitter in just a few minutes - this also eliminated more costly AC/DC wall plugs.


The tail rotor is powered by an even smaller brushed motor that's attached to the fixed pitch tail rotor.


There are no gyro's in mini rc helicopters like in conventional rc helicopters. Instead they have a trim switch which controls the speed of the tail rotor. Once you find the balance to counteract the rotational force of the main rotors, the tail will pretty much remain steady.


Most mini rc helicopters take about 10 - 20 minutes to charge and can buzz around for about 5-7 minutes depending on the model.


The gyroscopic action has a tendency to maintain it's axis of rotation relative to the ground and when no cyclic input is provided, it will keep the rc helicopter level. The secret behind their stability in the air is the weighted flybar. The flybar is attached to the main rotors and functions similarly to a gyroscope.