Looped departures are normal where I am... CGK
Everything is designed around a runway 25L & R operations.
Arrivals are from a generally north and east... They fly over DKI
VOR about 13NM east north east from CGK
. When using 25, departures would simply turn right to NW
or East South East through a turn either way.
When using 07, all the arrivals will have to make a 40NM downwind from DKI
VOR to the north of the airport. So, NW
departures would take off from 07L & R turning right to southwest until 6000 feet before turning NW
. Sometimes however, Cathay and China Airlines require to turn straight to NE, which causes problems for the ATC. Cathay's equipment (A330/340/777) can be turned to 230 to separate them from the arriving traffic.
China Airlines A300 to Taipei sometimes do it, however, problems arise when the 738 to HKG
then onto KHH
is delayed. If he's delayed, his departure would be at the beginning of the 3 - 6pm rush of arrivals. The problem is, he's so weight critical that I've heard many times that he cannot do a right turn to 230 from 07L because it would eat too much of his fuel... When that happens, a few times I've heard the flight say to clearance... "OK
, we'll wait until there's a gap in arrivals, we just need a 5 minute notice!"... which could mean 1 - 2 hrs wait with the pax on board ready to leave with a ground power cart pumping away...