AirportLookupSim Database

Reference only — not for real-world navigation.

KGRK

Killeen Regional Airport / Robert Gray Army Airfield · Fort Cavazos

Key Facts

Essential technical summary for MSFS 2020/2024 and X-Plane.

ILS Approach StatusILS FREQUENCIES VERIFIED ✅

Field Elevation

1,015 ft / 309 m

Transition Altitude

18,000 ft

Primary Channel

TWR 120.75 MHz (TWR)

Live Conversion

inHg

hPa

Details Runways Frequencies Navaids Nearby

Runway Summary (Quick-Links)

15/33 · 10,000 ft · PEMLIGHTED

Flight Planning

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Welcome to the technical flight briefing for Killeen Regional Airport / Robert Gray Army Airfield (KGRK), located in Fort Cavazos, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 1,015 ft. Instrument approaches (IFR) are supported with verified ILS frequencies and identifiers for precision landings.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.

Airport Details

Full geographical and organizational metadata.

Full Name

Killeen Regional Airport / Robert Gray Army Airfield

ICAO / IATA

KGRK / GRK

Municipality

Fort Cavazos

Country

US — United States

Region

US-TX — Texas

GPS Coordinates

📍 31.067200, -97.828903 🗺️

Transition Altitude

18,000 ft

Elevation

1,015 ft

Wikipedia

Pilot Toolbox

External charts, live tracking and weather reports.

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Runways & ILS Approach Data

Detailed dimensions and instrument landing frequencies.

Runway 15 / 33

ILS EQUIPPEDLIGHTED

Runway Length: 10,000 ft / 3,048 m
Runway Width: 200 ft / 61 m
Surface Type: PEM
Heading: 157.3° / 337.3°

RWY 15 (157.3°)

111.10 MHz

IDENT: GRK | CRS: 153°

RWY 33 (337.3°)

109.35 MHz

IDENT: BTJ | CRS: 333°

Nearby Navaids

Ground-based navigation aids (VOR, NDB, DME) in the vicinity or associated with this airport.

AGJ · VORTAC (Gooch Springs)112,500 kHz

31.185000, -98.141000 · 1,191 ft

LZZ · VORTAC (Lampasas)112,500 kHz

31.185499, -98.141899 · 1,290 ft

HLR · NDB (Hood)347 kHz

31.129101, -97.711403 · 924 ft

IL · NDB (Iresh)278 kHz

31.024000, -97.708000 · 857 ft

GR · NDB (Starn)323 kHz

31.167801, -97.878197 · 0 ft

GRK · VOR-DME (Gray)111,800 kHz

31.032900, -97.813797 · 980 ft

Communication Frequencies

Air traffic control and advisory channels.

A/D GRAY APP/DEP

120.08 MHz

ATIS ATIS

111.80 MHz

CLD CLNC DEL

121.80 MHz

GND GRAY GND

126.20 MHz

INFO RANGE CTL

30.45 MHz

MISC FT HOOD FLT FLW

38.75 MHz

PMSV PMSV GRAY METRO

41.20 MHz

PTD PTD

38.70 MHz

TWR TWR

120.75 MHz

Nearby Airports

Alternative airports in the vicinity (km & nm).

Draughon Miller Central Texas Regional Airport

Waco Regional Airport

Austin Bergstrom International Airport

San Marcos Regional Airport

Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026