PATA Ralph M Calhoun Meml

UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available. Weather observation is 5688 minutes old — treat with caution.

certainty: — evidence: NONE no tower now Class E

Wind calm · · 5688 min old

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25 50% 4400 ft

7 50% 4400 ft · right traffic

Why — evidence behind this answer

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	5688 min
ADSB	UNAVAILABLE		No ADS-B track history here yet
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

Was this right?

PATA field & runways

Ralph M Calhoun Meml, Tanana, Alaska. Field elevation 242 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 19.0°E on record, 13.1°E today.

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 0.348°/year west — about 1° every 3 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.
Runway	True	Magnetic	Number	Length	Surface	Pattern	Notes
25	269.3°	256.3°	runway 26 by the rule today · 6.3° past	4,400 ft	GRAVEL	left
7	89.3°	76.3°	runway 8 by the rule today · 6.3° past	4,400 ft	GRAVEL	right

Generated 08:40:21Z · auto-refreshes · JSON