Cambria Air Force Station is a closed
United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army S ...
General Surveillance Radar station. It is located south-southeast of
Cambria, California
Cambria () is a seaside village in San Luis Obispo County, California, United States midway between San Francisco and Los Angeles along California State Route 1 (Highway 1). The name Cambria, chosen in 1869, is the Latin name for Wales. Cambr ...
. It was closed in 1980.
History
Cambria Air Force Station was one of twenty-eight stations built as part of the second segment of the
Air Defense Command
Aerospace Defense Command was a major command of the United States Air Force, responsible for continental air defense. It was activated in 1968 and disbanded in 1980. Its predecessor, Air Defense Command, was established in 1946, briefly ina ...
permanent radar network. Prompted by the start of the
Korean War
{{Infobox military conflict
, conflict = Korean War
, partof = the Cold War and the Korean conflict
, image = Korean War Montage 2.png
, image_size = 300px
, caption = Clockwise from top: ...
, on July 11, 1950, the Secretary of the Air Force asked the Secretary of Defense for approval to expedite construction of the permanent network. Receiving the Defense Secretary's approval on July 21, the Air Force directed the Corps of Engineers to proceed with construction.
The 775th Aircraft Control and Warning Squadron was initially assigned to a temporary "Lashup" site (LP-2) that was established in November 1951 at Cambria equipped with an
AN/TPS-1C radar. On 1 December 1953 the permanent station was activated with
AN/FPS-3
The AN/FPS-20 was a widely used L band early warning and ground-controlled interception radar system employed by the United States Air Force Air Defense Command, the NORAD Pinetree Line in Canada, the USAF CONAD in the continental United States, ...
search and
AN/CPS-4 height-finder radars, replacing the earlier site, and initially the station functioned as a Ground-Control Intercept (GCI) and warning station. As a GCI station, the squadron's role was to guide interceptor aircraft toward unidentified intruders picked up on the unit's radar scopes.
In 1955 the height-finder radar was replaced by an
AN/FPS-6. An
AN/FPS-8
The AN/FPS-8 Radar was a Medium-Range Search Radar used by the United States Air Force Air Defense Command
Aerospace Defense Command was a major command of the United States Air Force, responsible for continental air defense. It was activat ...
search radar also operated for a short time from 1955 to 1956. In 1959 the site featured two
AN/FPS-3
The AN/FPS-20 was a widely used L band early warning and ground-controlled interception radar system employed by the United States Air Force Air Defense Command, the NORAD Pinetree Line in Canada, the USAF CONAD in the continental United States, ...
, and AN/FPS-6 and AN/FPS-6A radars. In 1961 the site received an
AN/FPS-7
The AN/FPS-7 Radar was a Long Range Search Radar used by the United States Air Force Air Defense Command
Aerospace Defense Command was a major command (military formation), command of the United States Air Force, responsible for continenta ...
radar featuring ECCM capability. In 1961 the site also replaced the AN/FPS-6A height-finder radar with an AN/FPS-6B model. In April 1961 Cambria AFS joined the
Semi Automatic Ground Environment
The Semi-Automatic Ground Environment (SAGE) was a system of large computers and associated networking equipment that coordinated data from many radar sites and processed it to produce a single unified image of the airspace over a wide area. SA ...
(SAGE) system, feeding data to DC-17 at
Norton AFB, California. After joining, the squadron was redesignated as the 775th Radar Squadron (SAGE) on 1 May 1961. The radar squadron provided information 24/7 the SAGE Direction Center where it was analyzed to determine range, direction altitude speed and whether or not aircraft were friendly or hostile.
In 1963 an
AN/FPS-26A replaced the AN/FPS-6B height-finder radar, and continued routine radar surveillance throughout the 1960s and 1970s. Cambria AFS was re-designated as NORAD ID Z-2 on 31 July 1963.
In addition to the main facility, Cambria operated the
AN/FPS-14
The AN/FPS-14 was a medium-range search Radar used by the United States Air Force Air Defense Command.
This medium-range search radar was designed and built by Bendix as a SAGE system gap-filler radar to provide low-altitude coverage. Operating in ...
Gap Filler site:
* Lockwood, CA (P-2A)
Over the years, the equipment at the station was upgraded or modified to improve the efficiency and accuracy of the information gathered by the radars. In 1979 Cambria came under Tactical Air Command (TAC) jurisdiction with the inactivation of Aerospace Defense Command and the creation of
ADTAC. Operations ceased on 30 September 1980 as a result of budget restrictions, and the general phase down of air defense radar stations.
It was operated by the Coast Guard as a NAVTEX (Navigational Telex, broadcasting safety notices & weather info to ships) station.
Today, what was Cambria Air Force Station is in private hands. The station sold to Big Cats LLC, Bernd Schaefers on January 13, 2005 for $2,000,000. Most buildings are in reasonable condition with most of the towers still remaining. After completion of code upgrades and de-militarization, the Uniphi Foundation, a subsidiary of Our Kids Future Foundation (a not-for-profit California corporation), is planning to use it as a Uniphi Foundation Learning Center.
See http://www.sanluisobispo.com/news/local/article39154191.html & http://www.sanluisobispo.com/news/local/article39119154.html for information on asbestos on the site.
Air Force units and assignments

; Units
; 775th Radar Squadron
* Constituted as the 775th Aircraft Control and Warning Squadron
: Activated at
Cambria, California
Cambria () is a seaside village in San Luis Obispo County, California, United States midway between San Francisco and Los Angeles along California State Route 1 (Highway 1). The name Cambria, chosen in 1869, is the Latin name for Wales. Cambr ...
on 7 March 1951
: Site renamed Cambria Air Force Station on 1 December 1953
: Redesignated as 775th Radar Squadron (SAGE) on 1 May 1961
: Redesignated as 775th Radar Squadron on 1 February 1974
: Inactivated on 30 September 1980
Assignments:
*
542d Aircraft Control and Warning Group
The 542d Aircraft Control and Warning Group is an inactive United States Air Force unit. It was last assigned to the 28th Air Division, stationed at Hamilton Air Force Base, California. It was inactivated on 6 February 1952.
This command and con ...
, 7 March 1951
*
28th Air Division
The 28th Air Division is an inactive United States Air Force organization. Its last assignment was with Air Defense Tactical Air Command at Tinker Air Force Base, Oklahoma. It was inactivated on 29 May 1992.
History
Established in December ...
, 6 February 1952
*
27th Air Division
The 27th Air Division was a United States Air Force numbered air division and the geographic Air Defense Command region controlled by the 27th AD. Its last assignment was with Air Defense Command (ADC)'s Tenth Air Force, at Luke Air Force Base ...
, 1 October 1954
*
Los Angeles Air Defense Sector, 1 October 1959
* 27th Air Division, 1 April 1966
*
26th Air Division
The 26th Air Division (26th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Tactical Air Command, assigned to First Air Force, being stationed at March Air Force Base, California. It was inac ...
, 19 November 1969 – 30 September 1980
See also
*
*
United States general surveillance radar stations
United States general surveillance radar stations include Army and USAF stations of various US air defense networks (in reverse chronological order):
* Joint Surveillance System (JSS), with radar stations controlled by joint FAA/USAF ROCCs beginni ...
Notes
References
* Cornett, Lloyd H. and Johnson, Mildred W.,
A Handbook of Aerospace Defense Organization 1946–1980', Office of History, Aerospace Defense Center, Peterson AFB, CO (1980).
* Winkler, David F. & Webster, Julie L.,
Searching the Skies', The Legacy of the United States Cold War Defense Radar Program, US Army Construction Engineering Research Laboratories, Champaign, IL (1997).
{{Aerospace Defense Command, state=collapsed
Installations of the United States Air Force in California
Formerly Used Defense Sites in California
Cambria, California
Buildings and structures in San Luis Obispo County, California
Aerospace Defense Command military installations
Semi-Automatic Ground Environment sites
Military installations established in 1951
1951 establishments in California
1980 disestablishments in California
Military installations closed in 1980