VDP and PUP

Question 1

What is VDP?

Answer 1

-Visual Descent Point
-The VDP is the position from which you can descend from MDA while maintaining a 3-degree glide path and landing at the touchdown point.
-May be depectied on a NPA

Question 2

How do you calculate VDP?

Answer 2

Question 3

What is PUP?

Answer 3

-Pull Up Point
-If a descent has not been initiated by this point then a stable approach is not possible
-Not depicted on an approach plate