effective runway length

effective runway length

i. It is the distance from the end of the runway where takeoffs begin to the point where the obstruction clearance plane associated with the other end of the runway intersects the runway centerline.
ii. The distance from the point at which the obstruction clearance plane associated with the approach end of the runway intersects the centerline of the runway to the far end. effective span The horizontal distance between tip chords, or the total span less the correction for tip losses.