Ohio State University (KOSU) radio calls

Towered airport with a Class D surface area

Sample calls at KOSU

Ohio State University 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 05; 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 121.35 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. YouState Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
3. ATCCessna Six Zero Foxtrot, State Clearance, maintain VFR at or below two thousand five hundred, departure frequency one two five point niner five, squawk four six one two.
4. YouAt or below two thousand five hundred, departure one two five point niner five, squawk four six one two, Cessna Six Zero Foxtrot.
5. YouState 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, State Ground, runway zero five, taxi via Alpha, hold short of runway zero five.
7. YouRunway zero five, taxi via Alpha, hold short of runway zero five, 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. YouState Tower, Cessna Six Zero Foxtrot, holding short runway zero five, ready for departure, northbound.
10. ATCCessna Six Zero Foxtrot, State Tower, runway zero five, cleared for takeoff.
11. YouRunway zero five, cleared for takeoff, Cessna Six Zero Foxtrot.
12. ATCCessna Six Zero Foxtrot, contact Columbus Approach one two five point niner five.
13. Youone two five point niner five, Cessna Six Zero Foxtrot.
14. YouColumbus 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, Columbus Approach, radar contact, altimeter three zero zero one.
16. YouAltimeter three zero zero one, Cessna Six Zero Foxtrot.
17. Inbound: call the tower about 15 miles out, before the Class D boundary (AIM 4-3-2 a).
18. YouState Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing State.
19. ATCCessna Six Zero Foxtrot, State Tower, enter left downwind runway zero five, report midfield downwind.
20. YouEnter left downwind runway zero five, report midfield, Cessna Six Zero Foxtrot.
21. YouState Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway zero five.
22. ATCCessna Six Zero Foxtrot, runway zero five, cleared to land, wind two seven zero at eight.
23. YouRunway zero five, cleared to land, Cessna Six Zero Foxtrot.
24. 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).
25. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact State Ground one two one point seven.
26. YouExit next taxiway, one two one point seven, Cessna Six Zero Foxtrot.
27. YouState Ground, Cessna Six Zero Foxtrot, clear of runway zero five, taxi to the ramp.

If things change. The tower operates 0700-2300 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 118.8 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 →
• How to request VFR flight following →
• How to read the ATIS →

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