Definition: The up and down movement of a helicopter is controlled by the collective. The collective keeps the pitch of the main rotor blades level with the fuselage and allows for the ascent and descent of the helicopter.
In a typical full-size helicopter, the collective control stick is usually on the left side of the pilot's seat. The left stick of the transmitter is the collective control and throttle for an RC helicopter.
Also Known As: Collective Pitch | Collective Control Stick | Variable Pitch | Main Blade Pitch

