What does VY mean in flying?

What does VY mean in flying?

Best Rate of Climb (Vy) After takeoff, the aircraft should normally be configured for the Best Rate of Climb. This will provide the best climb for the maximum gain in altitude in the shortest time possible.

What happens to VX and VY as altitude increases?

If Vy is measured as a true airspeed, it increases approximately 1% for every thousand feet increase in altitude. That’s right! If you measure Vy in terms of TAS it will increase, not decrease with altitude. Therefore, if Vy is 82 knots (TAS) at sea level, it must be approximately 90 knots (TAS) at 10,000 feet.

What happens when VX and VY meet?

The Absolute Ceiling: Where Vx and Vy Meet Your “absolute ceiling” is the highest altitude you could possibly fly. At this altitude, the power available curve crosses through the lowest point of the power required curve. Now you can’t climb anymore because you’re out of excess power.

How do you find VX and VY?

Projectile motion equations

  1. Horizontal velocity component: Vx = V * cos(α)
  2. Vertical velocity component: Vy = V * sin(α)
  3. Time of flight: t = 2 * Vy / g.
  4. Range of the projectile: R = 2 * Vx * Vy / g.
  5. Maximum height: hmax = Vy² / (2 * g)

What is VX in a Cessna 172?

VX. Best angle of climb speed (Sea Level). At 10,000′ Obstacle speed (flaps up) For a soft-field takeoff with obstacles (10° flaps)

How does wind affect VX and VY?

Vx or Vy indicated speeds are not affected by wind, the angle or flight path in relation to the earths surface will change with wind.

What is the effect of flap extension on VX and VY?

Both are related to Lift and DRAG, with the higher flap settings having the lower Vx/Vy, with Vx/Vy increasing as flap setting decreases. The actual Angle / Rate of Climb will be decreased in all cases when any flap is used.

What is VLO and VLE?

VLO is the airspeed at which the landing gear can be safely operated—extended or retracted. VLE is the maximum speed at which you can fly with the gear extended.

What is VX and VY in projectile motion?

In a projectile motion let vx and vy be the horizontal and vertical components of velocity at any time t and x and y be the displacements along horizontal and vertical from the point of projection at any time t. Then. vy−t graph is a straight line with negative slope and positive intercept.