直升机信息_直升机_直升飞机_旋翼机_Helicopter

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 fireproof gloves

-emergency flotation system
2. Principles of Flight – Helicopters
2.1 Subsonic Aerodynamics
a) Basics Laws and Definitions
-Components of aircraft
- Aircraft configuration
-Units of measurement of
-length
-area
-volume
-velocity
-mass
-pressure
-temperature
-density
-force
-power
-energy
-Terms used to describe aerodynamic phenomena
- Reference speeds
-Abbreviations
b) Deviation of lift
-equation of continuity
-Bermoulli’s Theorem
-streamline flow
-angle of attack
-pressure distribution abut a wing (transverse and longitudinal)
-centre of pressure xx
-aerofoil shape (plan and section) and its effect on lift
-lift formula
-lift/ drag ratio
c) Drag
-profile drag
-causes
-variation with speed
-methods of minimizing it
-induced drag
-causes -vortices
-variation with speed
-design factors affecting it
-total effect of the combination of profile and induced Drag
d) Distribution of forces
-lift/ weight and thrust/drag couples
-necessity to achieve balance
-methods of achieving balance
e) Stability
-aircraft axes and planes of rotation
-static stability
-dynamic stability
-effects of design features on stability
-inter-action between stability in difference planes
-effect of altitude/ speed on stability
-roll and yaw dampers rotor thrust, H-force
　
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