runwayinuse

MT13 Ostlunds

29
WIND_INFERRED 90%

Runway 29 — favored by the wind (10 kt at 230° true)

Based on wind only — no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. ADS-B tracking just started here — traffic history is still building.

certainty: 90% evidence: WEAK no tower now

N 29 11

Wind 230° true at 10 kt · VFR · 29 min old · from KBIL (7.9 nm away)

▶ Listen live — ATIS/CTAF on LiveATC opens LiveATC’s own player · verify the broadcast yourself

29 99% 1807 ft · 4 kt head, 9 kt x-left
11 1% 1807 ft · 4 kt TAIL, 9 kt x-right
Why — evidence behind this answer

Runway 29

Runway 11

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METAROK 29 min Nearest station KBIL (7.9 nm away)
ADSBWARMING_UP 1 min Only 10 min of track history so far
NOTAMOK
CIFPNOT_CONFIGURED Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 10 min of track history so far)

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MT13 field & runways

Ostlunds, Billings, Montana. Field elevation 3828 ft. Non-towered (NON-ATCT). Private use.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.09°/year west — about 1° every 11 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against today's declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
RunwayTrueMagnetic Number LengthSurfacePattern Notes
11 113.1° 103.1° runway 10 by the rule today · 6.9° past 1,807 ft TURF
29 293.1° 283.1° runway 28 by the rule today · 6.9° past 1,807 ft TURF

Generated 10:22:00Z · auto-refreshes · JSON