How to ...

fly an IFR-approach into VTBD (Bangkok Don Munag)

To make life easy for you and the controller it is recommended that you always use one of the published approaches into Don Muang. Depending on where you are coming from there are approach routes available:

From the East:

From the North:

From the West and North West:

From the South:

and from the South East:

You can find the charts for those routes here.  Each route will have an identifier after the name, i.e. “A” to “Z” which will identify the status of revision of the route. At the time of writing this, all routes have an “A” (ALPHA) at the end.

These are fixed arrival routes called STAR’s (Standard Arrival Route) including an entry point and several waypoints along the route, each of which will bring you the ILS of either RWY 21L or 21R at an altitude of approx. 2500 ft and a distance of about 10 NM. They also specify minimum altitudes at which each waypoint should be crossed and give speed limits along the route.

I will take the example of the PAULA3 arrival to explain what the charts are trying to tell you:

You will see that you can “join” the PAULA3 arrival coming from

MENEX (airways B463, from NTW VOR, airway W10 from STN VOR or airway W34 from RAN VOR), 
HOTEL (actually only if you come from Hua Hin) and REGOS (airways W52 from SMU VOR when coming from Phuket 
or Samui, A464/W19 and UPNEB/DIRAX if you coming from Hat Yai or places further south and B469 if coming from Malaysia or maybe Singapore) from all these points you will fly to PAULA (N13 43.3, E100.23.2, BKK VOR R230/DME16) which you should cross at not less than 9000 ft QNH (remember, when you below 10000 ft the maximum speed is 250 kts indicated). If both CTR and APP are on-line, expect to be handed over from CTR to APP when you are passing FL120.

From PAULA you turn right to heading of 029 degrees to proceed to BD106 (N14.01.1 E100 32.7, BKK VOR R338/DME008) to be crossed at a minimum altitude (QNH) of 7000 ft and the maximum speed here is 240 kts. This actually brings you on right hand downwind to the rwys at Don Muang. If you look out on the right side you will se the airport (weather permitting).

Continue another 10 NM on the same heading to BD104 (N14 09.6 E100 37.8, BKK VOR R007/DME16) where you should be around 3500 ft QNH and not faster than 210 kts indicated.

Traffic permitting, ATC will turn you right here to a heading of approx. 180 to intercept the ILS to the runways and descend you to 2500 ft. In this turn reduce your speed to approx. 170 kts indicated, unless ATC tells you otherwise. If there is some other traffic in front of you, the controller will tell you to “extend”  your downwind to BD116 (N14.14.2, E100 40.2, BKK VOR R012/DME21) or even to BD118 (N14 18.7 E100.43.2, BKK VOR R106/DME26) and keep you at a higher altitude before turning you the final intercept course.

If there is no controller around, just fly the same route and start your right turn to approx. 180 degrees when you have the right altitude and distance to the ILS you want to fly. Of course, its always a good idea to listen to the UNICOM frequency (122.80) and to broadcast what you are doing there in case there is somebody else around.

If you use those routes and indicate them in your flightplan, both the controller and you will know exactly what you intend to do.

When you get closer to Don Muang  you might expect the controller will give you vectors (courses to fly) and altitudes which might be different from what is published in the STAR’s. Of course, the controller’s instructions have precedence over the STAR and you have to follow his instructions, even if it means deviating from the STAR.

Even though all frequencies and codes SHOULD be real,
they are only for use with ProController, SquawkBox and Flight Simulators,
and should NOT be used for real life aviation.

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Tuesday, 25 March, 2003