Reference only — not for real-world navigation.
RK31
G-307 Airport · Yulmun-ri
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
270 ft / 82 m
Transition Altitude
14,000 ft
Primary Channel
ACC 32.30 MHz (FCC SUN)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
08/26 · 1,870 ft · AsphaltUNLITFlight Planning
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Welcome to the technical flight briefing for G-307 Airport (RK31), located in Yulmun-ri, South Korea. 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 270 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 14,000 ft verified for this field for altimeter reset procedures.
Full Name
G-307 Airport
ICAO / IATA
RK31 / —
Municipality
Yulmun-ri
Country
Region
KR-42 — Gangwon Teukbyeoljachi-do (Gangwon Special Self-Governing Province)
GPS Coordinates
Transition Altitude
14,000 ft
Elevation
270 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 08 / 26
UNLIT
Runway Length: 1,870 ft / 570 m
Runway Width: 50 ft / 15 m
Surface Type: Asphalt
Heading: 74.7° / 254.7°
Runway Width: 50 ft / 15 m
Surface Type: Asphalt
Heading: 74.7° / 254.7°
RWY 08 (74.7°)
No ILS / Visual Only
RWY 26 (254.7°)
No ILS / Visual Only
ACC FCC SUN
32.30 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026