Reference only — not for real-world navigation.
RK4M
Junction City Heliport (C-521) · Naban (Junction City)
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
1,713 ft / 522 m
Transition Altitude
14,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
Flight Planning
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Welcome to the technical flight briefing for Junction City Heliport (C-521) (RK4M), located in Naban (Junction City), South Korea. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 0 active runways with a maximum elevation of 1,713 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
Junction City Heliport (C-521)
ICAO / IATA
RK4M / —
Municipality
Naban (Junction City)
Country
Region
KR-44 — Chungcheongnam-do (South Chungcheong Province)
GPS Coordinates
Transition Altitude
14,000 ft
Elevation
1,713 ft
Pilot Toolbox
External charts, live tracking and weather reports.
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026