Helicopter Principles Of FlightHow the helicopter flies! In plain English (as far as possible!) |
Contents
Airflow Aerofoils | 2-1 |
Forces In Flight | 3-1 |
Stability | 4-1 |
Translational Lift | 4-17 |
Tail Rotor Drift | 6-1 |
Autorotations | 7-1 |
Vortex Ring | 8-1 |
Dynamic Rollover | 8-7 |
Power | 10-1 |
Mechanicals | 11-1 |
Common terms and phrases
acceleration advancing blade aerodynamic aerofoil aircraft airspeed altitude angle of attack autorotation Bell blade pitch boundary layer camber centrifugal force chord line climb collective pitch coning angle constant creates curve cyclic decreases density altitude direction disk Dissymmetry Of Lift downwash dynamic pressure effect engine Fenestron flapback forward flight forward speed fuselage gearbox ground ground resonance helicopter hover increases induced drag induced flow inertia less load low speed lower Mach number machine main rotor mass maximum momentum move movement normal nose parasite drag pedal plane of rotation position power required produce profile drag rate of descent ratio reduces relative airflow retreating blade roll rotor blades rotor disc rotor head rotor RPM rotor thrust RRPM shaft skid speed of sound stall static pressure surface swashplate tail rotor tailboom temperature throttle tilt torque turbulent vector velocity vertical vibration Vortex Ring weight wind wing zero