A320 Descend Calculations
hi,
I used to use the following calculations during descend,please if some one wants to add any information I appreciate it.
ILS-I start by subtracting the FAF altitude from current cruising altitiude,then calculate the tail or head wind based on 10 knots equal 2 miles,so for example if I got 20 knots tail I just add 4 miles on the descend distance if headt wind I subtract ,plust 10 miles for deceleration,taking into consideration the a/c weight,in case of radar vectors also I see where am I with regard to the runway and I add the distance to go.
VOR-I usually put the ENTRY point -FAF- in porg page ,then I do the same calculation but I add 5 to 6 miles on top to be stabalized at the FAF.
a friend captain told me, also it is good idea to take two references at 30 miles from runway be 9000 feet and at 60 miles be 19000 feet.
sometimes I see how many miles I need to loose altitude with the current v/s and I adjust accordingly.
I would appreciate any hents and recommendations.