Definitions

advance ratio

Rotor dynamics

Rotorcraft dynamics and design is a subtle subject as it involves challenging issues in aerodynamics and mechanics. The rotor is the most complex and most important part of a helicopter. This is why it has been extensively studied during the last twenty years. This goal of these studies have been to provide a simplified yet accurate model that can simulate a helicopter's genuine behavior.

Main characteristics

Blade lock number gamma, : represents the ratio between blade's aerodynamics forces and inertia forces

Advance ratio mu,

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