Descent
This mode is set under various conditions:-
1 . After the ‘cruise briefing’ cabin announcement has been made and the
aircraft descends below the DescentAltitude trigger
2. Subject to condition #1 and If aircraft drops below 2,000 (this was put
in place to cater for emergency landings after takeoff
3. If Flightmode is set to Landed (i.e. Aircraft actually touched down) and
now the airspeed is increasing and we’re climbing (+VSI)… to cater for
touch ‘n’ goes)
4. If ‘cruise briefing’ has not been played but aircraft descends below the
trigger altitude the announcement flag is bumped so the next one to
play will be the ‘approach briefing’
Note: The DescentAlt trigger is set to the highest altitude reached (to a
maximum of 1 2,000’) We then subtract a modifier which is 1 0% if the
DescentAlt is set to 1 2,000 (the max) or 20% if it’s less than 1 2,000. So if
cruising at 1 2,000 or above the trigger altitude is set to 1 0,800. If cruising at
6,000 the trigger altitude is set to 4,800