Gregory Municipal/Flynn Field frequencies
Gregory Municipal/Flynn Field (9D1) in Gregory, SD has no control tower, so nobody is sequencing traffic here — you announce your own position on 122.8. Every frequency below is in the order you tune it. · Open on the map
All of Gregory Municipal/Flynn Field — runways, frequencies, charts and live weatherTaxi & takeoff
- CTAF 122.8
- The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.
- UNICOM 122.8
- A ground station run by the FBO rather than the FAA, for fuel, parking and airport services. Use it for services. Where the field has no separate CTAF, the same frequency doubles as the advisory frequency.
Also
- Flight service 125.1 (LOW)
- Flight Service handles briefings, flight plans and en route advisories, reached here through a remote outlet. Open and close VFR flight plans, and get updated weather in the air. 1-800-WX-BRIEF reaches the same specialists from the ground.
What to say on 122.8
Nobody is sequencing traffic at 9D1, so every call is you telling other aircraft where you are. Open and close with the field name so a pilot tuned to a shared frequency knows which airport you mean — 122.8 is not unique to Gregory Municipal/Flynn Field.
- Inbound, 10 miles out
Gregory Flynn traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 13, Gregory Flynn.
- Entering the pattern
Gregory Flynn traffic, Skyhawk one two three four five, entering left downwind runway 13, Gregory Flynn.
- Before taking the runway
Gregory Flynn traffic, Skyhawk one two three four five, departing runway 13, Gregory Flynn.
Pattern direction is not always left here — check the 9D1 traffic pattern before you announce a leg. The Chart Supplement is authoritative if 9D1 publishes a call name that differs from the airport's. Full guidance →
By procedure & sector (2 more)
| 121.725 | APT REMARK 2 WITH GCO FREQ |
|---|---|
| 269.1 | PIERRE RCAG (LOW) |
Every 9D1 frequency, as one table
| CTAF | 122.8 |
|---|---|
| UNICOM | 122.8 |
| Flight service | 125.1 (LOW) |
Frequently asked
What is the CTAF at 9D1?
Gregory Municipal/Flynn Field is non towered. The common traffic advisory frequency is 122.8 — announce your position and intentions on entry and on each leg of the pattern.
More about 9D1
Frequencies from FAA NASR. For planning and education only; always verify against official sources.
Something here wrong or out of date? Report a data problem.