Non-towered · Class G at the surface

Tillitt Field (1S3) radio calls

Forsyth, MTFAA identifier 1S3; no ICAO code assigned

Tillitt Field is a non-towered airport in Forsyth, MT. Nobody clears you to do anything: you self-announce on the CTAF, 122.8, as Tillitt Field Traffic, with the airport name at the start and end of each call.

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

CTAFTillitt Field Traffic122.8

Airport

Runways
09 · 27
Elevation
2,729 ft
Position
46.271, -106.624

Non-towered airport: self-announce on the CTAF

Sample calls at 1S3

Tillitt 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 09; 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.

  1. 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).
  2. YouTillitt Field traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway zero niner, Tillitt Field.
  3. YouTillitt Field traffic, Cessna Six Zero Foxtrot, departing runway zero niner, departing the pattern to the north, Tillitt Field.
  4. 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).
  5. YouTillitt Field traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Tillitt Field, Tillitt Field.
  6. YouTillitt Field UNICOM, Cessna Six Zero Foxtrot, one zero miles south, request wind and runway information, Tillitt Field.
  7. 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.
  8. YouTillitt Field traffic, Cessna Six Zero Foxtrot, entering left downwind runway zero niner, full stop, Tillitt Field.
  9. YouTillitt Field traffic, Cessna Six Zero Foxtrot, left base runway zero niner, Tillitt Field.
  10. YouTillitt Field traffic, Cessna Six Zero Foxtrot, final runway zero niner, full stop, Tillitt Field.
  11. YouTillitt Field traffic, Cessna Six Zero Foxtrot, clear of runway zero niner, Tillitt Field.

If things change. 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). Listen for ten miles before you arrive; most of what you want to know has already been said.

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 Montana

Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Oct 29, 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.