Non-towered · Class G at the surface
Sauk/Prairie (91C) radio calls
Prairie Du Sac, WIFAA identifier 91C; no ICAO code assigned
Sauk/Prairie is a non-towered airport in Prairie Du Sac, WI. Nobody clears you to do anything: you self-announce on the CTAF, 122.9, as Sauk/Prairie Traffic, with the airport name at the start and end of each call. The approach control for the area is Madison Approach on 135.45, 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
| CTAFSauk/Prairie Traffic | 122.9 |
|---|---|
| Approach / DepartureMadison Approach | 135.45 |
Airport
- Runways
- 18 · 36
- Elevation
- 832 ft
- Position
- 43.298, -89.756
Non-towered airport: self-announce on the CTAF
Sample calls at 91C
Sauk/Prairie has no operating control tower. Every call below goes out on the CTAF, 122.9, to the other aircraft, not to a controller. The runway shown is 18; 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 122.9. 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).
- YouSauk/Prairie traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one eight, Sauk/Prairie.
- YouSauk/Prairie traffic, Cessna Six Zero Foxtrot, departing runway one eight, departing the pattern to the north, Sauk/Prairie.
- 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).
- YouSauk/Prairie traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Sauk/Prairie, Sauk/Prairie.
- YouSauk/Prairie traffic, Cessna Six Zero Foxtrot, entering left downwind runway one eight, full stop, Sauk/Prairie.
- YouSauk/Prairie traffic, Cessna Six Zero Foxtrot, left base runway one eight, Sauk/Prairie.
- YouSauk/Prairie traffic, Cessna Six Zero Foxtrot, final runway one eight, full stop, Sauk/Prairie.
- YouSauk/Prairie traffic, Cessna Six Zero Foxtrot, clear of runway one eight, Sauk/Prairie.
If things change. Want flight following after departure? Call Madison Approach on 135.45 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
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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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