runwayinuse

MU73 Spencer Fld

9
WIND_INFERRED 70%

Runway 9 — favored by the wind (6 kt at 140° 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: 70% evidence: NONE no tower now

N 9 27

Wind 140° true at 6 kt · VFR · 53 min old · from KBBG (24.4 nm away)

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9 80% 1200 ft · 4 kt head, 5 kt x-right
27 20% 1200 ft · 4 kt TAIL, 5 kt x-left
Why — evidence behind this answer

Runway 9

Runway 27

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METAROK 53 min Nearest station KBBG (24.4 nm away)
ADSBWARMING_UP 3686 min Only 0 min of track history so far
NOTAMOK
CIFPNOT_CONFIGURED Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

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MU73 field & runways

Spencer Fld, Highlandville, Missouri. Field elevation 1322 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 0.068°/year west — about 1° every 15 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
27 270.2° 270.0° matches 1,200 ft TURF
9 90.2° 90.0° matches 1,200 ft TURF

Generated 11:47:43Z · auto-refreshes · JSON