My CDA method (1 of thousands)..assuming no ATC speed
1. Put into the Box something meaningful....i.e. 8 Mile centre fix at 180kts / 2400ft
2. Pre plan energy gates..i.e 10000ft 35 miles (to go) 300kts
5000ft 20 miles (to go) 270kts
3. V/S -500fpm at 4000ft..ish slowing to clean speed...and configured with initial approach flap at 180kts..i.e. where I want to be, just like Ive put in the box.
CDA method number 2
Track miles times 3 plus 10 miles to slow down from 300kts to 180kt in V/S-500fpm (add only 5 if at 250..and 3 if at 220)
works a treat on the mighty 75.
Although I do believe it only applies below a certain level, and is defined as a minimum vertical speed throughout the manoeuvre. however my challenge to myself is to not touch the thrust levers, apart from guarding them! until we are fully established and need to spool up for the landing, usually about 8nm or so as we get asked to do 160kts to 4dme, which needs flaps 20 and some power to maintain it....
Try this with flap 15, it also works as long as your at 180kts with 15 flap at G/S intercept
