Calculating Top of descent (For beginners) using 2 step approach

Ground School Community Tutorials
#1

A new tutorial!
How to descent in an easy way from high Altitude?

Procedure:-
**P1)**You are at FL300, And you want to descent, do this calculations:-
30000×3÷1000=90
Then 90+70NM=160NM
Descent from 30000 to 15000

**P2)**Then Do this Calculation:-
15000×3.5=52500÷1000~=53NM
So at 53NM descent to 3000 then wait until establish on Localizer

That is all!

***VS.:- ***-1700----------->-2000

Speed:-
FL300:- 0.75M
FL250:- 220k
FL200:- 200k
FL150:- 190k
7000ft:- 170k
3000ft:- Landing speed.

####Thank you

20 Likes
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#2

There is already a same post here…

@R_Jordanian Ever, Ever, Ever, Search before post!

1 Like
When should I start my Descent?
#3

This is for begginers in another way from High alt

#4

Still it’s related and similar. We don’t want topics about every single little thing that can happen :-)
Good tutorial though!

1 Like
#5

Very interesting

#6

Yeah but beginners or confirmed users, the calcul is the same…!

@R_Jordanian

#7

It’s not, show me that post

#8

Your speeds look low, we often keep our aircraft around 220-240 until near landing when we drop the flaps. (That is unless the STAR says different).

4 Likes
#9

That is for begginers, if they started doing this then they will be familiar with the IRL procedure

1 Like
#10

@R_Jordanian :

#And

Why did you have two sames topics ?

Is the difference is : for beginner and for confirmed users ?

3 Likes
When should I start my Descent?
#11
  1. Mine contains 2 parts (1 is to descent to half of the ALT and the other is to final) while them is direct (from Crusing alt to landing)
  2. That other topic i made was show the way from lower alts

Thanks

#14

This post was flagged by the community and is temporarily hidden.

#15

We’re did you get 70nm from

#16

i need to know for my t/d im landing at KLAX from YSSY and do I still use the same formula if im at FL390?

#17

Generally speaking, most planes can easily make 10,000ft at 30miles from the field if you start at about 150nm out and drop at 1200-1800 depending on cruise.

#18

Really helpful. Thanks!

#19
#20