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4WI1 Bancroft East Airport
Rio, Wisconsin, USA

GOING TO RIO?

FAA INFORMATION EFFECTIVE 14 MAY 2026

Location

FAA Identifier: 4WI1
Lat/Long: 43-28-59.9460N 089-11-00.4120W
43-28.999100N 089-11.006867W
43.4833183,-89.1834478
(estimated)
Elevation: 840 ft. / 256 m (estimated)
Variation: 00E (1985)
From city: 1 mile E of RIO, WI
Time zone: UTC -5 (UTC -6 during Standard Time)
Zip code: 53960

Airport Operations

Airport use: Private use. Permission required prior to landing
Activation date: 07/1989
Control tower: no
ARTCC: CHICAGO CENTER
FSS: GREEN BAY FLIGHT SERVICE STATION
Attendance: UNATNDD
Wind indicator: yes
Segmented circle: no

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
MSNr016/21.4MADISON VORTAC108.6003E
DLLr096/25.6DELLS VORTAC117.0003E

 
NDB name  Hdg/Dist  Freq  Var  ID
ROCK RIVER314/27.337101WRYV .-. -.-- ...-

Airport Services

Runway Information

Runway 6/24

Dimensions: 2600 x 70 ft. / 792 x 21 m
Surface: turf
RUNWAY 6  RUNWAY 24
Traffic pattern: leftleft
Obstructions: pline, 625 ft. from runwaynone

Airport Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: DAVID BANCROFT
W3798 OLD B RD.
RIO, WI 53960
Phone (920) 319-2009
Manager: M. JAMES BANCROFT
W3758 OLD B RD.
RIO, WI 53960
Phone 920-348-5738

Additional Remarks

- FOR CD CTC CHICAGO ARTCC AT 630-906-8921.

Instrument Procedures

There are no published instrument procedures at 4WI1.

Some nearby airports with instrument procedures:

C47 - Portage Municipal Airport (14 nm W)
KUNU - Dodge County Airport (21 nm E)
KMSN - Dane County Regional Airport-Truax Field (22 nm S)
87Y - Blackhawk Airfield (23 nm S)
KDLL - Baraboo/Wisconsin Dells Regional Airport (26 nm W)
  
Loc | Ops | Rwys | IFR | FBO | Links
Com | Nav | Svcs | Stats | Notes
Area around 4WI1 (Bancroft East Airport)
 
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Aerial photo
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Sectional chart

 
Airport distance calculator
Flying to Bancroft East Airport? Find the distance to fly.

From to 4WI1

Sunrise and sunset
Times for 07-Jun-2026
 Local
(UTC-5)		 Zulu
(UTC)
Morning civil twilight04:4209:42
Sunrise05:1710:17
Sunset20:3401:34
Evening civil twilight21:0902:09

Current date and time
Zulu (UTC)  08-Jun-2026 00:16:50
Local (UTC-5)  07-Jun-2026 19:16:50
 
METAR
KUNU 
21nm E 		072355Z AUTO 11005KT 10SM BKN070 23/11 A2999 RMK AO2 T02330113 10268 20233 TSNO
KMSN 
22nm S 		072353Z 11009KT 10SM FEW039 BKN140 OVC240 24/14 A2995 RMK AO2 SLP136 VIRGA OHD T02390144 10272 20239 55001 $
KDLL 
26nm W 		072355Z AUTO 10006KT 10SM CLR 25/15 A2995 RMK AO2 T02460154 10276 20246
KC29 
27nm SW 		072355Z AUTO 12008G14KT 10SM SCT120 25/12 A2996 RMK AO1 T02460116 10273 20245
KY50 
34nm N 		072356Z AUTO 13011G16KT 10SM FEW070 26/13 A2997 RMK AO2 SLP144 6//// T02560133 10294 20256 53003 $
KFLD 
35nm NE 		072353Z AUTO 12008KT 10SM CLR 24/11 A2999 RMK AO2 SLP151 T02390106 10272 20239 53002
KC35 
35nm W 		072355Z AUTO 11005KT 10SM SCT044 26/15 A2994 RMK AO2 T02550149 10281 20255 PWINO
KOSH 
40nm NE 		072353Z 11007KT 10SM CLR 24/12 A2998 RMK AO2 SLP143 T02390117 10272 20239 53002
TAF
KMSN 
22nm S 		072046Z 0721/0818 13011KT P6SM SCT060 BKN200 FM080900 11006KT P6SM BKN070 FM081200 12007KT P6SM BKN021 PROB30 0812/0816 4SM -TSRA OVC015CB FM081600 14009KT 6SM -TSRA BKN012CB
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