AirNav: 81LL - Otterbach Farm Airport

81LL

Otterbach Farm Airport
Mendota, Illinois, USA

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FAA INFORMATION EFFECTIVE 04 SEPTEMBER 2025

Location

FAA Identifier:	81LL
Lat/Long:	41-34-09.1180N 089-10-25.3130W 41-34.151967N 089-10.421883W 41.5691994,-89.1736981 (estimated)
Elevation:	840 ft. / 256 m (estimated)
Variation:	00E (1985)
From city:	2 miles NW of MENDOTA, IL
Time zone:	UTC -5 (UTC -6 during Standard Time)
Zip code:	61342

Airport Operations

Airport use:	Private use. Permission required prior to landing
Activation date:	05/1979
Control tower:	no
ARTCC:	CHICAGO CENTER
FSS:	KANKAKEE FLIGHT SERVICE STATION
Attendance:	UNATNDD
Segmented circle:	no

Airport Communications

WX AWOS-3 at VYS (13 nm S):	120.025 (815-223-8442)
WX AWOS-3 at RPJ (20 nm N):	125.2 (815-562-2955)

Nearby radio navigation aids

VOR radial/distance		VOR name		Freq		Var
JOTr270/38.4		JOLIET VOR/DME		112.30		02E

Airport Services

Runway Information

Runway NW/SE

Dimensions:	1600 x 70 ft. / 488 x 21 m
Surface:	turf
	RUNWAY NW	RUNWAY SE
Traffic pattern:	left	left

Airport Ownership and Management from official FAA records

Ownership:	Privately-owned
Owner:	DEAN L. OTTERBACH RR 1 MENDOTA, IL 61342 Phone 815-538-7102
Manager:	DEAN L. OTTERBACH RR 1 MENDOTA, IL 61342 Phone 815-538-7102 KEN OTTERBACK 35461 N 2900TH RD MENDOTA, IL 61342 (815) 538-7102

Additional Remarks

-	OWNER DESIRES ARPT NOT BE CHARTED.
-	FOR CD CTC CHICAGO ARTCC AT 630-906-8921.

Instrument Procedures

There are no published instrument procedures at 81LL.

Some nearby airports with instrument procedures:

KVYS - Illinois Valley Regional Airport-Walter A Duncan Field (13 nm S)
KRPJ - Rochelle Municipal Airport/Koritz Field (20 nm N)
C73 - Dixon Municipal Airport-Charles R. Walgreen Field (20 nm NW)
KSQI - Whiteside County Airport/Jos H Bittorf Field (25 nm NW)
KDKB - De Kalb Taylor Municipal Airport (30 nm NE)

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Area around 81LL (Otterbach Farm Airport)

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Aerial photo

Sectional chart

Airport distance calculator
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Sunrise and sunset

Times for 18-Sep-2025

	Local (UTC-5)	Zulu (UTC)
Morning civil twilight	06:13	11:13
Sunrise	06:41	11:41
Sunset	19:01	00:01
Evening civil twilight	19:28	00:28

Current date and time

Zulu (UTC)	18-Sep-2025 23:01:57
Local (UTC-5)	18-Sep-2025 18:01:57

METAR

KVYS 13nm S	182255Z AUTO 29007KT 10SM CLR 29/13 A3001 RMK AO2 T02880133 TSNO
KRPJ 19nm N	182255Z AUTO 04005KT 10SM SCT080 29/13 A3002 RMK AO2 T02880133
KSQI 25nm NW	182256Z AUTO 36003KT 10SM CLR 27/16 A3002 RMK AO2 SLP161 T02670161

TAF

KRFD 38nm N	182047Z 1821/1918 VRB04KT P6SM FEW120 FM182200 09006KT P6SM SCT100
KDPA 46nm NE	182047Z 1821/1918 16005KT P6SM FEW250 FM182200 08007KT P6SM SCT120

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