Infinity One Oklahoma Spaceport (KCSM) radio calls

Towered airport with a Class D surface area

Sample calls at KCSM

Infinity One Oklahoma Spaceport has a Class D surface area: establish two-way communication with the tower before entering (AIM 3-2-5 b 3). A reply that uses your call sign, even "standby", establishes it; "aircraft calling, standby" does not. The calls below use runway 17L; 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. There is no ATIS frequency in the FAA data for this airport, so ask Ground for the numbers on your first call: they will give the runway, wind and altimeter.
2. YouClinton-Sherman Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
3. ATCCessna Six Zero Foxtrot, Clinton-Sherman Ground, runway one seven left, taxi via Alpha, hold short of runway one seven left.
4. YouRunway one seven left, taxi via Alpha, hold short of runway one seven left, Cessna Six Zero Foxtrot.
5. 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).
6. YouClinton-Sherman Tower, Cessna Six Zero Foxtrot, holding short runway one seven left, ready for departure, northbound.
7. ATCCessna Six Zero Foxtrot, Clinton-Sherman Tower, runway one seven left, cleared for takeoff.
8. YouRunway one seven left, cleared for takeoff, Cessna Six Zero Foxtrot.
9. Inbound: call the tower about 15 miles out, before the Class D boundary (AIM 4-3-2 a).
10. YouClinton-Sherman Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing Clinton-Sherman.
11. ATCCessna Six Zero Foxtrot, Clinton-Sherman Tower, enter left downwind runway one seven left, report midfield downwind.
12. YouEnter left downwind runway one seven left, report midfield, Cessna Six Zero Foxtrot.
13. YouClinton-Sherman Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one seven left.
14. ATCCessna Six Zero Foxtrot, runway one seven left, cleared to land, wind two seven zero at eight.
15. YouRunway one seven left, cleared to land, Cessna Six Zero Foxtrot.
16. 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).
17. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Clinton-Sherman Ground one two one point seven.
18. YouExit next taxiway, one two one point seven, Cessna Six Zero Foxtrot.
19. YouClinton-Sherman Ground, Cessna Six Zero Foxtrot, clear of runway one seven left, taxi to the ramp.

If things change. The tower operates 0900-0100 MON-FRI ; EXCEPT FEDERAL HOL. local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 119.6 with the airport name first and last, and the surface area reverts to Class E or Class G as published in the Chart Supplement.

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; 3-2-5 b 3; 4-3-2 a. 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 →
• What "cleared for takeoff" means →
• What "cleared to land" means →
• What "cleared for the option" means →
• First time flying into a Class D airport →

Nearby in Oklahoma

• KELKElk City Regional Businessnon-towered
• F36Cordell Municipalnon-towered
• KCLKClinton Regionalnon-towered
• KHBRHobart Regionalnon-towered
• 3O4Sayre Municipalnon-towered
• KOJAWeatherford Staffordnon-towered