About: Opheim Air Force Station

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About: Opheim Air Force Station Sponge Permalink

An Entity of Type : dbkwik:resource/iSuBELKKm8lFbt-JqrThhQ==, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

In late 1951 Air Defense Command selected Opheim, Montana 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, on July 11, 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 July 21, the Air Force directed the Corps of Engineers to proceed with construction. In addition to the main facility, Opheim operated two AN/FPS-14 Gap Filler sites:

Attributes	Values
rdf:type	Military Structure
rdfs:label	Opheim Air Force Station
rdfs:comment	In late 1951 Air Defense Command selected Opheim, Montana 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, on July 11, 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 July 21, the Air Force directed the Corps of Engineers to proceed with construction. In addition to the main facility, Opheim operated two AN/FPS-14 Gap Filler sites:
sameAs	dbr:Opheim_Air_Force_Station
Mark	Red_pog.svg
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Garrison	779(xsd:integer)
lon deg	106(xsd:integer)
Built	1951(xsd:integer)
Partof	Air Defense Command
Label	Opheim AFS
lat sec	40(xsd:integer)
float	right
lon sec	40(xsd:integer)
Name	Opheim Air Force Station 60px
Type	Air Force Station
Caption	Location of Opheim AFS, Montana Main Gate
Width	300(xsd:integer)
marksize	6(xsd:integer)
lon dir	W
lat dir	N
used	1951(xsd:integer)
lat min	51(xsd:integer)
lon min	28(xsd:integer)
lat deg	48(xsd:integer)
Position	bottom
abstract	In late 1951 Air Defense Command selected Opheim, Montana 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, on July 11, 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 July 21, the Air Force directed the Corps of Engineers to proceed with construction. On 1 March 1951 the 779th Aircraft Control and Warning Squadron was activated at Opheim AFS with AN/FPS-3 and AN/FPS-4 radars, 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. An AN/GPS-3 radar operated between 1957 and 1961. In 1958 and 1959 AN/FPS-6 and AN/FPS-6A radars replaced the AN/FPS-4 height-finder radar. The AN/FPS-3 left service in 1960, and was replaced by an AN/FPS-7C search radar. During 1961 Opheim AFS joined the Semi Automatic Ground Environment (SAGE) system, initially feeding data to DC-20 at Malmstrom AFB, Montana. After joining, the squadron was re-designated as the 779th Radar Squadron (SAGE) on 15 July 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 the squadron operated the AN/FPS-7C search radar along with AN/FPS-26A and AN/FPS-90 height-finder radars. On 31 July 1963, the site was redesignated as NORAD ID Z-26. The AN/FPS-90 was damaged by a fire in 1966, but was repaired; it was removed some time in the early 1970s. In addition to the main facility, Opheim operated two AN/FPS-14 Gap Filler sites: * Whitewater, MT (P-26A) * Whitetail, MT (P-26D) 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. Opheim AFS ceased operations on 1 June 1979 as part of the inactivation of Aerospace Defense Command. The 779th Radar Squadron (SAGE) was inactivated on 29 September 1979. Today, the former Opheim Air Force Station is abandoned and largely obliterated. Most of the Air Force buildings have been razed, their foundations remain. A few buildings still stand derelict.

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