Starting CDM & handing over master

Each CDM airport needs exactly one master. Only the master calculates TSATs and can set manual CTOTs. Everyone else runs as slave.

Who is master

The lowest position online at the airport: DEL → GND → TWR → APP/CTR.

• BIKF_DEL, BIKF_TWR and BIKF_APP online: BIKF_DEL is master.
• Only BIKF_APP online: BIKF_APP is master.
• Only a BIRD CTR online: the CTR is master for each CDM airport it covers.

CDM airports in BIRD: BIKF, BIRK, BIAR, BGGH, BGSF and EKVG.

Starting CDM

1. Select the active departure runways in the EuroScope runway dialog. With no runway selected, CDM calculates nothing. At BIKF, the runways selected also decide the departure rate.
2. Type .cdm master BIKF (repeat for each airport you cover).
3. Check the CDM airport panel (.cdm panel):
   • Green: you are master.
   • Purple: someone else is master. Coordinate before doing anything.
   • Red: no master.
4. Times update every 10 seconds. If they do not appear, type .cdm refresh.

Handing over master

Hand over when a lower position logs on, or when you log off.

1. Agree the handover with the other controller.
2. The current master types .cdm slave.
3. Once the panel shows no master, the new controller types .cdm master BIKF.

Never have two masters for one airport. If you are master and log off with nobody taking over, type .cdm slave before disconnecting.

After a EuroScope crash, reconnect, become master again and type .cdm recover BIKF to restore the saved times.