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The speed for best rate of climb is called...
  • A
    VO
  • B
    VX
  • C
    V1
  • D
    VY

Speed of Best Angle of Climb (VX)

The speed to gain more altitude with the least horizontal distance.
It is almost the same speed as the minimum drag speed (VMD), so all factors affecting the drag affects the VX.

Speed of Best Rate of Climb (VY)

The speed to gain more altitude with the least time.
It is the same speed for maximum excess of power, so all factors affecting the require power affects the VY.

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