Please chuck in any comments here: A320
I have not figured out the 10 bit, but have not applied myself to study it yet either - apart from that:-
I use - FLx3(+50ft) = dist to go to t/d, invariably, the surface, not bad if surface equals desired runway. FL350 = 105 miles.
-or- Fl to Fl or alt x 3 again. FL100 desc to 7000 say, (notwithstanding barometric diff between std and QNH - a BIG Notwithstanding, just for this . . example)
So, FL100 to FL70 or 7,000 assuming QNH is 1013.2 today.
3,000 right? 3x3=9 miles. (D9/S250/210=T so 2.16 mins gives about 1153 fpm rod)
quite a hurtle, but see further . .
I aim, to be at spd 210 by 12 track miles (even if the track is vectors and notwithstanding rocks in the way MSAs and the like out to ruin everyones day) using ND at 20 and gradually reducing range rings, you get the drift. . . .
180 by 08 miles
160 by 06 miles -
Also, built into this is my configuration at those speeds.
For example 210 `by` 12 miles 12 miles = 3600` +/-
========180..."" 08 miles = 2400`+/- (f1) (Gear at one dot or...)
========160..."" 06 miles = 1800`+/- (f2)(f3 at160) Gear.
========Managed"" 4.5 miles = - - - - - -(FULL)
Managed being favoured, by many, all the way down.
the mess-ups to the above are ATC, red cells, traffic, Terrain.
I am finding that eventhough we can get . . messed about, these speed gates help to formulate a mental model of the desired spd and profile, given the distances to go which even if they could become opaque with ATCs creative vectoring I can put myself into low level hang out mode and just drive over the approach with a 190 or 180 selected and a F1, and they can keep me up there all day, subject to one or two requirements and needs of course.
A word on ATC, I have nearly always found that ATC not only give you a vector but will always tell you what it is for - i.e., "if you make your heading 235 now that will bring you onto an intercept with LOC 27 - call LOC established . . "
Admittedly, some countries may not offer the same picture profile as others.
P.S. I love the: wait descent until past TOD - for an idle descent, cool.
Also - wpt to a point on app/final
watchit! MSA/SSA (Mex comes to mind)
SID or DP to a wpt
watchit! MSA/SSA
Naturally, adjustments have to made for a head or tail wind component
Traffic
Terrain
ATC