City of Colorado Springs Municipal (KCOS) radio calls

Towered airport with a Class C surface area

Sample calls at KCOS

City of Colorado Springs Municipal has a Class C surface area: establish two-way communication with the approach control before entering, and keep it (AIM 3-2-4 c 3). A reply with your call sign, even "standby", establishes it. The calls below use runway 13; the tower assigns the runway in use 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. Listen to the ATIS on 125.0 first and note the letter; "with Information (letter)" on your first call lets the controller skip the weather (JO 7110.65 3-10-1).
2. YouSprings Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
3. ATCCessna Six Zero Foxtrot, Springs Clearance, maintain VFR at or below two thousand five hundred, departure frequency one two four point zero, squawk four six one two.
4. YouAt or below two thousand five hundred, departure one two four point zero, squawk four six one two, Cessna Six Zero Foxtrot.
5. YouSprings Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
6. ATCCessna Six Zero Foxtrot, Springs Ground, runway one three, taxi via Alpha, hold short of runway one three.
7. YouRunway one three, taxi via Alpha, hold short of runway one three, Cessna Six Zero Foxtrot.
8. The runway, any clearance onto a runway and every hold-short instruction are read back (AIM 4-3-18 a 9). Stay on Ground through the run-up and switch to Tower when ready (AIM 4-3-14 a).
9. YouSprings Tower, Cessna Six Zero Foxtrot, holding short runway one three, ready for departure, northbound.
10. ATCCessna Six Zero Foxtrot, Springs Tower, runway one three, cleared for takeoff.
11. YouRunway one three, cleared for takeoff, Cessna Six Zero Foxtrot.
12. ATCCessna Six Zero Foxtrot, contact Springs Approach one two four point zero.
13. Youone two four point zero, Cessna Six Zero Foxtrot.
14. YouSprings Approach, Cessna Three One Six Zero Foxtrot, two thousand climbing four thousand five hundred, request VFR flight following to the north.
15. ATCCessna Six Zero Foxtrot, Springs Approach, radar contact, altimeter three zero zero one.
16. YouAltimeter three zero zero one, Cessna Six Zero Foxtrot.
17. Inbound: call the approach control before the Class C boundary; a reply with your call sign establishes communication and you may enter (AIM 3-2-4 c 3).
18. YouSprings Approach, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand five hundred, squawking one two zero zero, with Information Bravo, landing Springs, request Class Charlie service.
19. ATCCessna Six Zero Foxtrot, Springs Approach, squawk four six one two, ident.
20. YouSquawk four six one two, ident, Cessna Six Zero Foxtrot.
21. ATCCessna Six Zero Foxtrot, radar contact, altimeter three zero zero one, contact Springs Tower one one niner point niner.
22. YouAltimeter three zero zero one, one one niner point niner, Cessna Six Zero Foxtrot.
23. YouSprings Tower, Cessna Six Zero Foxtrot, five miles north, three thousand, with Bravo.
24. ATCCessna Six Zero Foxtrot, Springs Tower, enter left downwind runway one three, report midfield downwind.
25. YouEnter left downwind runway one three, report midfield, Cessna Six Zero Foxtrot.
26. YouSprings Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one three.
27. ATCCessna Six Zero Foxtrot, runway one three, cleared to land, wind two seven zero at eight.
28. YouRunway one three, cleared to land, Cessna Six Zero Foxtrot.
29. The wind is information: acknowledged, not read back. Exit at the first available taxiway or as told, taxi clear of the hold-short markings, and change to Ground only when the tower says (AIM 4-3-21).
30. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Springs Ground one two one point seven.
31. YouExit next taxiway, one two one point seven, Cessna Six Zero Foxtrot.
32. YouSprings Ground, Cessna Six Zero Foxtrot, clear of runway one three, taxi to the ramp.

If things change. The tower operates 24 hours. If you cannot raise it, check the frequency and volume, then squawk 7600, remain outside the Class D until you have the traffic flow, and watch for light signals (AIM 4-2-13).

Phraseology from AIM 4-2-3; 4-3-18 a 9; 4-3-14; 4-3-21; 4-4-7 b; 4-1-18 a 3; 3-2-4 c 3. What TowerTalk grades against →

The calls you will make here

• How to call Ground for taxi →
• Calling the tower inbound →
• Line up and wait, cleared for takeoff, cleared to land →
• Class C airport radio calls →
• How to request VFR flight following →
• How to read the ATIS →

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