KYIP Willow Run

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. Wind calm — no directional preference.

certainty: — evidence: NONE Class D

Wind calm · VFR · 47 min old

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5 28% 7543 ft

23 25% 7543 ft

27 24% 5001 ft

9 24% 5001 ft

Why — evidence behind this answer

Runway 5

PRIOR 5 used 71% of the time in this wind bin (n=7) +0.07
PRIOR runway length 7543 ft +0.04

Runway 23

PRIOR runway length 7543 ft +0.04
PRIOR 23 used 29% of the time in this wind bin (n=7) -0.03

Runway 27

PRIOR runway length 5001 ft -0.04

Runway 9

PRIOR runway length 5001 ft -0.04

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	47 min
ADSB	OK	1 min	GOOD
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour.

Was this right?

KYIP field & runways

Willow Run, Detroit, Michigan. Field elevation 716 ft. Class D airspace. Towered. Magnetic variation 6.0°W on record, 7.2°W 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 0.006°/year west — about 1° every 167 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
23	226.6°	233.8°	matches	7,543 ft	CONC	left	ILS
27	268.6°	275.7°	runway 28 by the rule today · 5.7° past	5,001 ft	ASPH	left
5	46.6°	53.8°	matches	7,543 ft	CONC	left	ILS
9	88.5°	95.7°	runway 10 by the rule today · 5.7° past	5,001 ft	ASPH	left

What KYIP usually does

Of 1,750 operations this service has observed at KYIP since 2026-08-28:

5 50% 870 ops
23 46% 811 ops
27 3% 53 ops
9 1% 16 ops

Observed by this service only — not an FAA statistic, and biased toward the hours and days it has been watching. It is shown because it is the same history the engine learns its local-convention prior from.

Generated 08:39:39Z · auto-refreshes · JSON

KYIP ☆ Willow Run