Non-towered · Class G at the surface
Halliburton Field (KDUC) radio calls
Duncan, OKICAO KDUC · FAA DUC
Halliburton Field is a non-towered airport in Duncan, OK. Nobody clears you to do anything: you self-announce on the CTAF, 122.8, as Halliburton Field Traffic, with the airport name at the start and end of each call. The approach control for the area is Fort Sill Approach on 118.6, which is who you call for VFR flight following.
No Class B, C, D or E surface area is designated for this airport in the FAA data, so the airspace at the surface is Class G.
Frequencies
| Clearance Delivery | 118.4 |
|---|---|
| CTAFHalliburton Field Traffic | 122.8 |
| Approach / DepartureFort Sill Approach | 118.6 |
Airport
- Runways
- 17 · 35
- Elevation
- 1,114 ft
- Position
- 34.471, -97.960
Non-towered airport: self-announce on the CTAF
Sample calls at KDUC
Halliburton Field has no operating control tower. Every call below goes out on the CTAF, 122.8, to the other aircraft, not to a controller. The runway shown is 17; use whichever runway the wind and the traffic dictate on the day.
The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.
- Tune 122.8. Nobody clears you; you announce and you listen. The airport name goes at the start and the end of every call, and the runway is always a number, never "the active" (AIM 4-1-9 g 8).
- YouHalliburton Field traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one seven, Halliburton Field.
- YouHalliburton Field traffic, Cessna Six Zero Foxtrot, departing runway one seven, departing the pattern to the north, Halliburton Field.
- Announce until you are about 10 miles out; on the way back, start announcing at 10 miles (AIM 4-1-9 c 1, TBL 4-1-1).
- YouHalliburton Field traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Halliburton Field, Halliburton Field.
- YouHalliburton Field UNICOM, Cessna Six Zero Foxtrot, one zero miles south, request wind and runway information, Halliburton Field.
- A UNICOM operator, if one is on, answers with the wind and the runway in use (AIM 4-1-9 h). If nobody answers, choose the runway from the wind and the pattern traffic you can hear.
- YouHalliburton Field traffic, Cessna Six Zero Foxtrot, entering left downwind runway one seven, full stop, Halliburton Field.
- YouHalliburton Field traffic, Cessna Six Zero Foxtrot, left base runway one seven, Halliburton Field.
- YouHalliburton Field traffic, Cessna Six Zero Foxtrot, final runway one seven, full stop, Halliburton Field.
- YouHalliburton Field traffic, Cessna Six Zero Foxtrot, clear of runway one seven, Halliburton Field.
If things change. Want flight following after departure? Call Fort Sill Approach on 118.6 once clear of the pattern: identification, type, position, altitude, destination, "request VFR flight following" (AIM 4-1-18 a 3). Do not use "any traffic in the area, please advise"; the AIM says it is not to be used under any condition (AIM 4-1-9 g 1).
Phraseology from AIM 4-1-9 c 1, g 1, g 8, h; TBL 4-1-1; 4-3-3. What TowerTalk grades against →
The calls you will make here
Nearby in Oklahoma
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- KCHKChickasha Municipalnon-towered
Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Sep 3, 2026. Training use only. Always verify against a current Chart Supplement and sectional chart before flight; frequencies change. TowerTalk is not affiliated with the FAA. Report a discrepancy.
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