
Calumet Air Force Station is a closed
United States Air Force
The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...
General Surveillance Radar station. It is located east-northeast of
Phoenix, Michigan
Phoenix is an unincorporated community in Keweenaw County, Michigan, United States. Phoenix lies at the junction of M-26 and U.S. Highway 41, approximately south of Eagle River, near the shores of Lake Superior.
Phoenix was the site of the P ...
. It was closed in 1988 by the Air Force, and turned over to the
Federal Aviation Administration
The Federal Aviation Administration (FAA) is a Federal government of the United States, U.S. federal government agency within the United States Department of Transportation, U.S. Department of Transportation that regulates civil aviation in t ...
(FAA).
History
In late 1951
Air Defense Command
Aerospace Defense Command was a major command (military formation), command of the United States Air Force, responsible for air defense of the continental United States. It was activated in 1968 and disbanded in 1980. Its predecessor, Air De ...
selected the Keweenaw, Michigan site as one of twenty-eight radar stations built as part of the second segment of the permanent radar surveillance network. Prompted by the start of the
Korean War
The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
, on 11 July 1950, the Secretary of the Air Force asked the Secretary of Defense for approval to expedite construction of the second segment of the permanent network. Receiving the Defense Secretary's approval on 21 July, the Air Force directed the Corps of Engineers to proceed with construction.
On 1 May 1951 the 665th Aircraft Control and Warning Squadron
[Cornett & Johnson, p. 158] began operating
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 State ...
and
AN/FPS-5 radars at this northern Michigan site in early 1953, 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. On 1 December 1953 the site was re-designated as Calumet Air Force Station.
In 1956 an
AN/FPS-6
The AN/FPS-6 Radar was a long-range height finding radar used by the United States Air Force's Air Defense Command. The AN/FPS-6 radar was introduced into service in the late 1950s and served as the principal height-finder radar for the United S ...
replaced the AN/FPS-5 height-finder radar. In 1958 an
AN/FPS-20
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, a ...
search radar was deployed at Calumet. By 1961 this radar was upgraded and redesignated as an
AN/FPS-64
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, a ...
. During 1960 Calumet AFS joined the
Semi Automatic Ground Environment
The Semi-Automatic Ground Environment (SAGE) was a system of mainframe computer, large computers and associated computer network, networking equipment that coordinated data from many radar sites and processed it to produce a single unified image ...
(SAGE) system, feeding data to DC-14 at
K. I. Sawyer AFB, Michigan. After joining, the squadron was re-designated as the 665th Radar Squadron (SAGE) on 15 July 1960.
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. On 31 July 1963, the site was redesignated as the NORAD ID Z-16.
A turn-over of equipment in 1963 left the site with an
AN/FPS-27
The AN/FPS-27 Radar was a long-range early warning radar used by the United States Air Force Air Defense Command.
Westinghouse Electric Corporation built a frequency diverse (FD) search radar designed to operate in the S-band from 2322 to 2670&n ...
search radar along with
AN/FPS-26
The Avco AN/FPS-26 Radar was an Air Defense Command height finder radar developed in the Frequency Diversity Program with a tunable 3-cavity power klystron for electronic counter-countermeasures (e.g. to counter jamming). Accepted by the Rome Ai ...
A and
AN/FPS-90
The AN/FPS-6 Radar was a long-range height finding radar used by the United States Air Force's Air Defense Command. The AN/FPS-6 radar was introduced into service in the late 1950s and served as the principal height-finder radar for the United S ...
height-finder radars. The AN/FPS-90 was removed in the late 1970s.
In addition to the main facility, Calumet operated the following
AN/FPS-18
The AN/FPS-18 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 sites:
* Painesdale, MI (P-16A)
* Upson, WI (P-16B)
The 665th Radar Sq was inactivated
and replaced by the 665th Air Defense Group in March 1970.
[Cornett, & Johnson, p.86] The upgrade to group status was done because of Calumet AFS' status as a
Backup Interceptor Control Backup Interceptor Control (BUIC, ) was the Electronic Systems Division 416M System to backup the SAGE 416L System in the United States and Canada. BUIC deployed Cold War command, control, and coordination systems to SAGE radar stations to create ...
(BUIC) site. BUIC sites were alternate control sites in the event that SAGE Direction Centers became disabled and unable to control interceptor aircraft. The group was inactivated
and replaced by the 655th Radar Squadron
as defenses against crewed bombers were reduced. The group was disbanded in 1984.
[Department of the Air Force/MPM Letter 575q, 27 Sep 1984, Subject: Disbandment of Units]
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. Calumet came under
Tactical Air Command
Tactical Air Command (TAC) is an inactive United States Air Force organization. It was a List of Major Commands of the United States Air Force, Major Command of the United States Air Force, established on 21 March 1946 and headquartered at Lang ...
jurisdiction in October 1979 with the inactivation of Aerospace Defense Command and the formation of
ADTAC
Air Defense, Tactical Air Command (ADTAC) was a Named Unit of the United States Air Force, and operated at the Numbered Air Force echelon of Tactical Air Command. It was responsible for the air defense of the United States, and was last statione ...
. The station then underwent cease-operations about that time, and the AN/FPS-26A height-finder radar was removed, but the site closing was soon reversed (Allegedly due to Calumet AFS being the only station to pick up a simulated air incursion). On 30 September 1988, the site finally closed permanently. Calumet was then reconfigured as an Air Force
Joint Surveillance System
The Joint Surveillance System (JSS) is a joint United States Air Force and Federal Aviation Administration system for the atmospheric air defense of North America. It replaced the Semi Automatic Ground Environment (SAGE) system in 1983.
Overvie ...
(JSS) site, initially with only the AN/FPS-27. An AN/MPS-11 Search Radar was installed as a gap-filler during the decommissioning of the AN/FPS-27 and the commissioning of the AN/FPS-91A. An
AN/FPS-91A replaced the AN/FPS-27, and later an
AN/FPS-116
The AN/FPS-6 Radar was a long-range height finding radar used by the United States Air Force's Air Defense Command. The AN/FPS-6 radar was introduced into service in the late 1950s and served as the principal height-finder radar for the United S ...
height-finder radar was installed.
After closure in 1988 ownership of the station was transferred to Keweenaw County, with a portion being used by the Keweenaw Academy reform school, with some facilities being used for cellular, amateur and other radio communications. As with many other closed bases, some of the facilities have become degraded due to lack of use and maintenance. In August 2021 a group of
Michigan Technological University
Michigan Technological University (Michigan Tech, MTU, or simply Tech) is a public research university in Houghton, Michigan, United States. It was founded in 1885 as the Michigan Mining School, the first post-secondary institution in the Uppe ...
alumni purchased the facility and surrounding land with plans to remediate environmental issues and development into a tourist destination.
Air Force units and assignments
Units
; 665th Radar Squadron
* Constituted as the 665th Aircraft Control and Warning Squadron
: Activated on 27 November 1950
: Redesignated 665th Radar Squadron (SAGE) on 15 July 1960
: Inactivated on 1 March 1970
: Redesignated 665th Radar Squadron on 1 January 1974
: Activated on 17 January 1974
: Inactivated on 30 September 1988
; 665th Air Defense Group
* Constituted as the 665th Air Defense Group on 13 February 1970
: Activated on 1 March 1970
: Inactivated on 17 January 1974
: Disbanded on 27 September 1984
[
]
Commanders
* Major Ira E. Mason 1962?–1963
* Major Fred L. McPherson 1963–1965
* Major Roger W. Gottschall 1965–?
* Major David P. Lentz, 1 March 1970 – 1970
* Maj. James H. Bentley, 1970–unknown
* Col. John Morgan Fear 1971–
* Maj David Hershberger 1979–1981
* Capt/Maj Jeff Mogilewicz 1981–1983
* Lt Col Larry Dobbs, 1983–1985
* Lt Col Scott Meyer, 1985–1987 – The men and women of the base earned the Outstanding Unit Award during this time.
* Lt Col Michael Yon, 1987–1988
Assignments
* 541st Aircraft Control and Warning Group
The 541st Aircraft Control and Warning Group (AC&WG) is a disbanded United States Air Force unit. It was last assigned to the 30th Air Division, stationed at Selfridge Air Force Base, Michigan. It was inactivated on 6 February 1952 and disbanded ...
, 27 November 1950
* 30th Air Division
The 30th Air Division (30th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command, assigned to Tenth Air Force, being stationed at Sioux City Air National Guard Base, Sioux City Municipal Air ...
, 6 February 1952
* 4706th Defense Wing
The 4706th Air Defense Wing is a discontinued United States Air Force (USAF) organization. Its last assignment was with the 37th Air Division of Air Defense Command (ADC) at O'Hare International Airport (IAP), Illinois where it was discontinued in ...
, 16 February 1953
* 37th Air Division
The 37th Air Division (37th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command at Goose Air Force Base, Labrador, Canada It was inactivated on 30 June 1970.
History Strategic Air Command
Es ...
, 8 July 1956
* 30th Air Division
The 30th Air Division (30th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command, assigned to Tenth Air Force, being stationed at Sioux City Air National Guard Base, Sioux City Municipal Air ...
, 1 April 1959
* Sault Sainte Marie Air Defense Sector
The Sault Sainte Marie Air Defense Sector (SsmADS) is an inactive United States Air Force organization. Its last assignment was with the 30th Air Division, being stationed at K.I. Sawyer Air Force Base, Michigan.
History
SsmADS was establ ...
, 1 April 1960
* Duluth Air Defense Sector
The Duluth Air Defense Sector (DUADS) is an inactive United States Air Force organization. Its last assignment was with the Air Defense Command 29th Air Division, being stationed at Duluth Airport, Minnesota. It was inactivated on 1 April 1969 ...
, 1 October 1963
* 29th Air Division
The 29th Air Division (29th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command, being stationed at Duluth International Airport, Minnesota. It was inactivated on 15 November 1969.
History ...
, 1 April 1966
* 23d Air Division
3D, 3-D, 3d, or Three D may refer to:
Science, technology, and mathematics
* A three-dimensional space in mathematics Relating to three-dimensionality
* 3D computer graphics, computer graphics that use a three-dimensional representation of geo ...
, 19 November 1969
* 24th Air Division
The 24th Air Division is an inactive United States Air Force intermediate echelon command and control organization. It was last assigned to First Air Force, Tactical Air Command (ADTAC). It was inactivated on 30 September 1990 at Griffiss Air ...
, 1 Apr 1982 – 30 September 1988
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 ...
References
Notes
Bibliography
*
Further reading
* Grant, C.L., (1961
The Development of Continental Air Defense to 1 September 1954, USAF Historical Study No. 126
*
*
*
*
External links
Information for Calumet AFS, MI
{{Authority control
Installations of the United States Air Force in Michigan
Buildings and structures in Keweenaw County, Michigan
Military installations closed in 1988
Semi-Automatic Ground Environment sites
Aerospace Defense Command military installations
1951 establishments in Michigan
1988 disestablishments in Michigan
Military installations established in 1951