Helicopter Basics - GREAT PLANES RealFlight 7 User Manual

Helicopter Basics

A model helicopter is a very complicated machine, which operates on the same
aerodynamic principles as its full-scale counterpart. These principles are quite
complicated to explain and understand. However, it is not necessary to understand all
the underlying aerodynamics in order to successfully fly a model helicopter (or a
computer simulation).
The following will help you to better understand the basics of helicopter flight, and the
relationship between control stick movements and the actions of the machine. Refer to
these instructions often as you become more proficient.
Please note: The inputs below are shown using a Mode 2 transmitter.
Collective (Left Stick – Vertical Movement)-
The spinning main rotor blades, which act like rotating wings, lift the helicopter into
the air. Changing the pitch (angle of attack) and speed of the blades, using the
"collective" and throttle causes the helicopter to rise and descend vertically. Adjusting
"collective" increases and decreases the blade pitch. The "throttle" control increases
and decreases engine RPM. On a model helicopter, the collective and throttle controls
are mixed electronically, and controlled by the throttle stick on the transmitter or
controller.
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