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Rotorcraft Flying Menu >Aerodynamics
of Flight >Hovering
Flight > Pendular Action
Since the fuselage of the helicopter, with
a single main rotor, is suspended from a single point and has
consider-able mass, it is free to oscillate either longitudinally
or laterally in the same way as a pendulum. This pendular action
can be exaggerated by over controlling; therefore, control movements
should be smooth and not exagger-ated. [Figure 3-3]
Figure 3-3. Because the helicopter’s
body has mass and is suspended from a single point (the rotor
mast head), it tends to act much like a pendulum.
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