Best Angle of Climb Speed (Vx) and Best Rate of Climb Speed (VY ) - اسأل الطيار ask pilot

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الثلاثاء، 30 يونيو 2020

Best Angle of Climb Speed (Vx) and Best Rate of Climb Speed (VY )



Basically, there are two airspeeds relating to climb performance which are, Vx and Vy.
**Vx is the indicated airspeed for best angle of climb.
**Vy is the indicated airspeed for best rate of climb.


Best Angle of Climb Speed (Vx)

Gain maximum altitude in shortest distance. Best angle of climb airspeed for an airplane is the speed at which the maximum excess thrust is available over that required for level flight. The best angle of climb will result in a steeper climb path, although the airplane will take longer
to reach the same altitude than it would at best rate of climb.The best angle of climb, therefore, is used in clearing obstacles after takeoff.

Best Rate of Climb Speed (VY )

Gain maximum altitude in shortest time. Best angle-of climb airspeed (Vx) is considerably lower than best rate of climb (VY ). Best angle of climb airspeed for an airplane is the speed at which the maximum excess thrust is available over that required for level flight.
The best angle of climb will result in a steeper climb path, although the airplane will take longer to reach the same altitude than it would at best rate of climb. The best angle of climb, therefore, is used in clearing obstacles after takeoff.

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