Rotorhead

The rotorhead is by far the most complex piece of mechanical equipment found in a helicopter, and it also gives the aircraft its unique V.T.O.L. capability. So, since it is clearly at the heart of helicopter design, we will examine the rotorhead’s functions and design considerations in this section.

• Rotorheads and Freedom of Movement
• Rotorhead Types
• Pitch Control
• Feathering and Blade Flapping
• Zero-offset Head
• Droop Stops
• Underslung Rotor Design
• Dragging Dynamics
• Ground Resonance
• Control Power

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