Reference only — not for real-world navigation.
MDSI
San Isidro Air Base · San Isidro
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
111 ft / 34 m
Transition Altitude
18,000 ft
Primary Channel
TWR 122.70 MHz (TWR)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
03/21 · 7,000 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for San Isidro Air Base (MDSI), located in San Isidro, Dominican Republic. 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 111 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
San Isidro Air Base
ICAO / IATA
MDSI / —
Municipality
San Isidro
Country
Region
DO-01 — Distrito Nacional
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
111 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 03 / 21
LIGHTED
Runway Length: 7,000 ft / 2,134 m
Runway Width: 200 ft / 61 m
Surface Type: Asphalt
Heading: 26° / 206°
Runway Width: 200 ft / 61 m
Surface Type: Asphalt
Heading: 26° / 206°
RWY 03 (26°)
No ILS / Visual Only
RWY 21 (206°)
No ILS / Visual Only
TWR TWR
122.70 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026