Unalakleet Air Force Station

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Unalakleet Air Force Station (1958-1969) - A Cold War U.S. Air Force Station, part of the Alaska AC&W Radar Network. Located on the Norton Sound of the Bering Sea coast about 400 miles northwest of Anchorage and 150 miles southeast of Nome. Initially functioned as a Ground Control Intercept (GCI) radar site, with a Permanent System ID of F-20. Later redesignated a surveillance site. Closed in 1969.

History

In 1955, a construction contract for Unalakleet AFS was awarded to Sam Bergstrom of Tacoma, Washington. Unalakleet AFS became an operational GCI station in June 1958 manned by the 718th AC&W Squadron. The 718th had been activated in April 1957 to operate and maintain the site.

Initial equipment included a [[FPS-8] search radar and an FPS-4 height-finder radar. In 1962 the FPS-8 search radar was changed out for a FPS-20A search radar and at some point, an FPS-6 replaced the FPS-4.

Aircraft track data from these radars was manually plotted on plotting boards and passed to a Manual Direction Center on voice and teletype circuits. In 1965 the FYQ-9 Semiautomatic Data Processing and Display System was implemented on Alaska AC&W radar sites automating the passing of track data to the direction centers. The result was reduced manpower requirements and increased efficiency.

In June 1969 the site ceased radar operations. The 718th AC&W Squadron was deactivated in October 1969.

Physical Plant

The Unalakleet AC&W site was constructed as one of the second phase standardized Alaska AC&W site designs. This was not a split site operation and facilities included a large two-story, wood-frame composite building, a second two-story wood-frame building, two concrete buildings, a wood-frame & concrete building, and eventually three radar towers.

A small airstrip provided facilities for fixed wing aircraft and helicopters. The original plan called for some nine buildings. No family housing was provided as this was considered a remote unaccompanied tour (1 year).

The Unalakleet was not as isolated as many of the Alaska AC&W sites. Shuttle runs operated between the site and the town of Unalakleet. Unalakleet then had a population of about 500 but drew fishermen from all over Alaska and the lower 48 during the fishing season. Alaska Airlines had daily service and carried mail for the site. This site reputedly has the longest aerial tram in North America (7400 feet).

Annual bulk resupply shipments to Unalakleet AFS were sealifted during the summer months under the Mona Lisa and later the Cool Barge programs. Airlift of supplies, mail and personnel was available year-round, weather permitting.

Air-Ground (A-G) Communications

Separate radio facilities housed the radio transmitter and receiver equipment for communicating with aircraft. A TACAN Navigational aid was located down by the airstrip.

White Alice Communications System (1955-1979)

After HF radio systems proved inadequate for command and control communications, the Air Force implemented the White Alice Communications System. This was a system of tropospheric scatter and microwave radio relay sites constructed during the mid-1950s to provide reliable communications to Alaska Air Command (AAC) AC&W system.

The North River Unalakleet White Alice tropo site was activated on 13 Sep 1957. This WACS station was a combination tropo/microwave station with links to Granite Mountain and Kalakaket Creek. The White Alice personnel were collocated with the AC&W Site personnel. Structures included were the one-story, wood-frame operations building, dormitory, Butler-type steel hut, and four billboard tropo antennas.

The North River Unalakleet White Alice tropo site was inactivated in 1978.


Unalakleet AFS Major Equipment List
Search Radar HF Radar Data Systems IFF/SIF
Unit Designations
  • 718th Aircraft Control & Warning (AC&W) Squadron (1957-1969)

Current Status

Most of the old AC&W site buildings have been demolished. The site has also had an environmental remediation project that has further erased signs of the old AC&W site and the White Alice tropo site.


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Location: Unalakleet in Nome Census Area Alaska.

Maps & Images

Lat: 63.91755 Long: -160.75087

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