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FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA
JANUARY 2003
MAIN ROTOR CONTROLS
The main rotor controls consist of a swashplate and levers assembly, a drive assembly,
and four pitch links. The fixed (non-rotating) portion of the controls are the swashplate
and levers, which are mounted on top of the transmission and receive control input
from the servo actuators. Collective servo input, through the collective levers, raises
or lowers the swashplate ball sleeve, which results in an equal increase or decrease in
the pitch of the blades. The left and right (cyclic) servo actuators input tilts the swashplate,
to effect differential pitch in each of the rotor blades, causing the rotor system to tilt in
the direction desired. The rotating controls are the drive assembly which is spline
adapted to and driven by the main rotor mast. The drive assembly follows the vertical
and tilting motion of the swashplate, and transfers it to the main rotor through the
pitch links.
Summary of Contents for BELL 430
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