Glacier Park International (KGPI) radio calls

Towered airport with a Class D surface area

Sample calls at KGPI

Glacier Park International 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 02; 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 132.625 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. YouGlacier 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, Glacier Ground, runway zero two, taxi via Alpha, hold short of runway zero two.
4. YouRunway zero two, taxi via Alpha, hold short of runway zero two, 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. YouGlacier Tower, Cessna Six Zero Foxtrot, holding short runway zero two, ready for departure, northbound.
7. ATCCessna Six Zero Foxtrot, Glacier Tower, runway zero two, cleared for takeoff.
8. YouRunway zero two, 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. YouGlacier Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing Glacier.
11. ATCCessna Six Zero Foxtrot, Glacier Tower, enter left downwind runway zero two, report midfield downwind.
12. YouEnter left downwind runway zero two, report midfield, Cessna Six Zero Foxtrot.
13. YouGlacier Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway zero two.
14. ATCCessna Six Zero Foxtrot, runway zero two, cleared to land, wind two seven zero at eight.
15. YouRunway zero two, 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 Glacier Ground one two one point six.
18. YouExit next taxiway, one two one point six, Cessna Six Zero Foxtrot.
19. YouGlacier Ground, Cessna Six Zero Foxtrot, clear of runway zero two, taxi to the ramp.

If things change. The tower operates 0800-0000 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 124.55 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 →
• First time flying into a Class D airport →
• How to read the ATIS →

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