Towered · Class D surface area
North Texas Regional/Perrin Field (KGYI) radio calls
Sherman/Denison, TXICAO KGYI · FAA GYI
North Texas Regional/Perrin Field is a towered airport in Sherman/Denison, TX. You will taxi with Ground on 124.125 and work North Texas Tower on 120.575, after listening to the ATIS on 118.775. The tower operates 0700-1900 local.
The airport has a Class D surface area: two-way radio communication with the tower must be established before entering. Published hours: CLASS D SVC 0700-1900; OTHER TIMES CLASS G.
Frequencies
| ATIS | 118.775 |
|---|---|
| GroundNorth Texas Ground | 124.125 |
| TowerNorth Texas Tower | 120.575 |
| CTAF | 120.575 |
Airport
- Runways
- 18L · 36R · 18R · 36L
- Elevation
- 749 ft
- Tower hours
- 0700-1900 local
- Position
- 33.714, -96.674
Towered airport with a Class D surface area
Sample calls at KGYI
North Texas Regional/Perrin Field 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 18L; 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.
- Listen to the ATIS on 118.775 first and note the letter; "with Information (letter)" on your first call lets the controller skip the weather (JO 7110.65 3-10-1).
- YouNorth Texas Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
- ATCCessna Six Zero Foxtrot, North Texas Ground, runway one eight left, taxi via Alpha, hold short of runway one eight left.
- YouRunway one eight left, taxi via Alpha, hold short of runway one eight left, Cessna Six Zero Foxtrot.
- 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).
- YouNorth Texas Tower, Cessna Six Zero Foxtrot, holding short runway one eight left, ready for departure, northbound.
- ATCCessna Six Zero Foxtrot, North Texas Tower, runway one eight left, cleared for takeoff.
- YouRunway one eight left, cleared for takeoff, Cessna Six Zero Foxtrot.
- Inbound: call the tower about 15 miles out, before the Class D boundary (AIM 4-3-2 a).
- YouNorth Texas Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing North Texas.
- ATCCessna Six Zero Foxtrot, North Texas Tower, enter left downwind runway one eight left, report midfield downwind.
- YouEnter left downwind runway one eight left, report midfield, Cessna Six Zero Foxtrot.
- YouNorth Texas Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one eight left.
- ATCCessna Six Zero Foxtrot, runway one eight left, cleared to land, wind two seven zero at eight.
- YouRunway one eight left, cleared to land, Cessna Six Zero Foxtrot.
- 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).
- ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact North Texas Ground one two four point one two five.
- YouExit next taxiway, one two four point one two five, Cessna Six Zero Foxtrot.
- YouNorth Texas Ground, Cessna Six Zero Foxtrot, clear of runway one eight left, taxi to the ramp.
If things change. The tower operates 0700-1900 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 120.575 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
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Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Sep 3, 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.
