LL10 Naper Aero Club

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 no tower now

Wind calm · VFR · 65 min old · from KARR (12.7 nm away)

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

18 26% 2537 ft

36 26% 2537 ft

27 24% 1750 ft

9 24% 1750 ft

Why — evidence behind this answer

Runway 18

PRIOR runway length 2537 ft +0.04

Runway 36

PRIOR runway length 2537 ft +0.04

Runway 27

PRIOR runway length 1750 ft -0.04

Runway 9

PRIOR runway length 1750 ft -0.04

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	65 min	Nearest station KARR (12.7 nm away)
ADSB	OK	44 min	MODERATE
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour.

Was this right?

LL10 field & runways

Naper Aero Club, Naperville, Illinois. Field elevation 709 ft. Non-towered (NON-ATCT). Private use. Magnetic variation 4.0°W on record, 3.8°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 0.033°/year west — about 1° every 30 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
18	180.8°	184.5°	matches rule gives runway 19 in ~14 yr	2,537 ft	ASPH	left
27	not published		—	1,750 ft	TURF	left
36	0.8°	4.5°	matches rule gives runway 1 in ~14 yr	2,537 ft	ASPH	left
9	not published		—	1,750 ft	TURF	left

What LL10 usually does

Of 103 operations this service has observed at LL10 since 2026-08-25:

18 53% 55 ops
36 47% 48 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 08:57:03Z · auto-refreshes · JSON

LL10 ☆ Naper Aero Club