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41IL Great Lakes Seaplane Base
Antioch, Illinois, USA

FAA INFORMATION EFFECTIVE 06 AUGUST 2026

Location

FAA Identifier: 41IL
Lat/Long: 42-27-59.5700N 088-07-58.2100W
42-27.992833N 088-07.970167W
42.4665472,-88.1328361
(estimated)
Elevation: 737 ft. / 225 m
From city: 2 miles WSW of ANTIOCH, IL
Time zone: UTC -5 (UTC -6 during Standard Time)
Zip code: 60002

Seaplane Base Operations

Seaplane Base use: Private use. Permission required prior to landing
Activation date: 04/2022
Control tower: no
ARTCC: CHICAGO CENTER
FSS: KANKAKEE FLIGHT SERVICE STATION
Attendance: 
Segmented circle: no

Seaplane Base Communications

WX ASOS at ENW (12 nm NE): PHONE 262-652-7730
WX ASOS at UGN (12 nm E): PHONE 847-782-0876
WX AWOS-3 at BUU (15 nm NW): 125.275 (262-757-0907)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
OBKr333/16.8NORTHBROOK VOR/DME113.0002W
DPAr014/35.9DUPAGE VOR/DME114.5502E
BAEr168/39.6BADGER VOR/DME116.4002E

 
NDB name  Hdg/Dist  Freq  Var  ID
WAUKE274/14.737903WUG ..- --.

Seaplane Base Services

Runway Information

Runway 3W/21W

Dimensions: 3451 x 400 ft. / 1052 x 122 m
Surface: water, in fair condition
RUNWAY 3W  RUNWAY 21W
Latitude: 42-27.735667N42-28.250500N
Longitude: 088-08.133167W088-07.808500W
Elevation: 737.0 ft.737.0 ft.
Traffic pattern: leftleft

Seaplane Base Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: TRENT TOBIAS
41072 N. WESTLAKE
ANTIOCH, IL 60002
Phone 847-812-1480
Manager: TRENT TOBIAS
41072 N. WESTLAKE
ANTIOCH, IL 60002
Phone 847-812-1480
FLOAT172@GMAIL.COM

Instrument Procedures

There are no published instrument procedures at 41IL.

Some nearby airports with instrument procedures:

C81 - Campbell Airport (9 nm S)
10C - Galt Field Airport (11 nm W)
KENW - Kenosha Regional Airport (12 nm NE)
KUGN - Waukegan National Airport (12 nm E)
KBUU - Burlington Municipal Airport (15 nm NW)
3CK - Lake in the Hills Airport (18 nm SW)
  
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Aerial photo
No photo
 
Sectional chart

 
Airport distance calculator
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From to 41IL

Sunrise and sunset
Times for 24-Aug-2026
 Local
(UTC-5)		 Zulu
(UTC)
Morning civil twilight05:4010:40
Sunrise06:1011:10
Sunset19:4000:40
Evening civil twilight20:0901:09

Current date and time
Zulu (UTC)  25-Aug-2026 04:55:51
Local (UTC-5)  24-Aug-2026 23:55:51
 
METAR
KENW 
12nm NE 		250353Z AUTO 00000KT 10SM CLR 14/13 A3011 RMK AO2 SLP194 T01390128
KUGN 
12nm E 		242251Z 10006KT 10SM CLR 21/13 A3008 RMK AO2 SLP181 T02060128
KBUU 
15nm NW 		250430Z AUTO 00000KT 10SM CLR 13/12 A3011 RMK AO2 T01260123 PWINO
K57C 
22nm NW 		250435Z AUTO 00000KT 10SM CLR 15/12 A3011 RMK AO2 T01450122 PWINO
KPWK 
23nm SE 		250352Z AUTO 00000KT 10SM FEW080 17/14 A3011 RMK AO2 SLP194 T01670139
TAF
KENW 
12nm NE 		242041Z 2421/2518 06006KT P6SM FEW060 SCT250 FM250100 VRB04KT P6SM FEW250 FM251500 19005KT P6SM SCT200
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