What is vACDM
vACDM is the second generation of CDM plugins which helps us manage start-up times in order to minimize delays and queues at the holding points.
vACDM is MANDATORY to use if you sit on EKCH_DEL
Abbriviations for CDM
EOBT : Estimated off block time
TOBT: Target off block time
TSAT: Target Start Up Time
ASRT: Requested Start Up Time
TTOT: Target Takeoff Time
What does it all mean?
Quick Breakdown for the basic rules
EOBT is always filed as part of the flight plan
TOBT is filed and changed during the boarding as predicted ready time may be changed back and forth. Pilot can freely choose this time. It is essentially a "Fine Tuning" of EOBT
TSAT is the time the CDM has targeted the pilot to start up on. This is based on
- 40 slots pr. hour meaning a takeoff time every 90 seconds
- Taxi time to the runway
- Finding a slot - taxi time which is as close as possible to the pilot filed TOBT.
ASRT is purely a marker you use to remind yourself pilot has requested start-up
ASAT is the time he has been given startup which is also in a way a marker.
Pilots KNOW their TOBT (it is filed by them)
Pilots DO NOT know their TSAT (It is constantly changing and is calculated by the system)
What to expect from Pilots
Pilot have a filed off block time or EOBT. This is filed with the flightplan
a TOBT is automatically calculated and will initially be identical to the pilots
Pilots will access "cda.vatsim-scandinavia.org" to "Confirm" their off block time. This should be done by all pilots.
Pilots shall call within +/- 5 minutes of their TOBT (the one they know)
Start-up shall only be granted within +/- 5 mintues of the TSAT (the calculated one)