The 755th Aircraft Control and Warning Squadron

The 755th Aircraft Control and Warning Squadron (HMR37)

Location: Lake Geneva, WI 53147 Walworth County
Country: United States of America

N 42° 37.005', W 88° 32.421'

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Side A
The Williams Bay Air Force Radar Station, home of the 755th Aircraft Control and Warning Squadron, was part of a nationwide Cold War effort to defend the continent against possible airborne attack from the Soviet Union. In the years following World War II, as tensions between the United States and Soviet Union escalated, Air Force engineers worked feverishly to develop a sophisticated radar technology suitable for a nationwide network of defensive stations.

Side B
The system did not gain wide support until the Soviet Union exploded their first atomic bomb in August 1949. The Williams Bay station became operational in 1950. Built on one of the highest elevations in the region, its two radomes scanned the skies 24 hours a day for the ten years it was active. The 755th operated in relative secrecy, ready to provide instant communications about suspicious aircraft to the regional processing centers at Truax Field in Madison and O'Hare Field in Chicago. Through the 1950s the Air Force rapidly built a nationwide network of radar stations. By 1957, the system consisted of over 200 stations. That year, the successful Soviet Sputnik satellite launch changed the focus of aerial defense from aircraft to ballistic missiles and the radar defense network was gradually decommissioned and consolidated.

HM NumberHMR37
Series This marker is part of the Wisconsin: Wisconsin Historical Society series
Marker Number505
Placed ByWisconsin Historical Society Sponsored by Eugene N. Shreves and Allan J. Mullen
Marker ConditionNo reports yet
Date Added Wednesday, October 1st, 2014 at 4:31pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)16T E 373669 N 4719406
Decimal Degrees42.61675000, -88.54035000
Degrees and Decimal MinutesN 42° 37.005', W 88° 32.421'
Degrees, Minutes and Seconds42° 37' 0.30" N, 88° 32' 25.26" W
Driving DirectionsGoogle Maps
Area Code(s)262
Closest Postal AddressAt or near 3371 WI-67, Lake Geneva WI 53147, US
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