1MA5
Unknown Field
Unknown Field (1MA5) is a general-aviation airfield serving Southborough, Massachusetts. The field lies at 432 ft (132 m) above sea level and has a single runway of 1,500 ft (457 m), asphalt and lit. Its nearest neighbour is Kallander Field (09MA), 2 nm NE.
Unknown Field is a smaller field, so Alārium does not attribute movements to it directly — but aircraft flying near it appear on the live map like any other, at their real altitude and on their real track.
Location
- Elevation
- 432 ft (132 m)
- Coordinates
- 42.2790, -71.5478
- Serving
- Southborough
- Region
- Massachusetts
- Time zone
- America/New_York
Runways1 · longest 1,500 ft
The diagram shows each runway’s orientation and relative length, read from its designator — runway 11 points 110° magnetic. Threshold coordinates are not published for this field, so strips are drawn about its centre rather than where they sit on the ground. It is a diagram, not a chart to navigate by.
| Runway | Length | Width | Surface | Lighting |
|---|---|---|---|---|
| 11/29 | 1,500 ft457 m | 30 ft | Asphalt | Lit |
Nearby airfields
Runway and field data from the OurAirports public-domain dataset. Positions are ADS-B, which covers most but not all aircraft.