Reference only — not for real-world navigation.
K42M
Thayer Memorial Airport · Thayer
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
790 ft / 241 m
Transition Altitude
18,000 ft
Primary Channel
CTAF 122.90 MHz (CTAF)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
09/27 · 4,200 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Thayer Memorial Airport (K42M), located in Thayer, 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 790 ft. Please note that this field primarily supports VFR and visual approach procedures.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.
Full Name
Thayer Memorial Airport
ICAO / IATA
K42M / —
Municipality
Thayer
Country
Region
US-MO — Missouri
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
790 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 09 / 27
LIGHTED
Runway Length: 4,200 ft / 1,280 m
Runway Width: 49 ft / 15 m
Surface Type: Asphalt
Heading: 90° / 270°
Runway Width: 49 ft / 15 m
Surface Type: Asphalt
Heading: 90° / 270°
RWY 09 (90°)
No ILS / Visual Only
RWY 27 (270°)
No ILS / Visual Only
CTAF CTAF
122.90 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026