rate of descent for a 3° glide path Flashcards
1
Q
what is the formula for a descent
A
VS (fpm) = Ground speed * 5
2
Q
what is VS (fpm) if your ground speed is 120 kts
A
600 fpm
120 kts * 5 = 600 fpm
3
Q
how far to start a descent for a 3° glide path?
A
Top Of Descent (TOD) = Altitude to lose (ft) / 300
4
Q
example on approach
800’ to lose MDA to TCH
A
start descent 2.67NM from the runway threshold
800’ / 300 = 2.67 NM
