Southeast Air Defense Sector

SEADS Region shown in NORAD Region/Sector Configuration, 1987-2005

Historical map of Montgomery Air Defense Sector, 1957-1966

The Southeast Air Defense Sector (SEADS), was a unit of the US Air Force located at Tyndall Air Force Base near Panama City, Florida. It provided air defense and surveillance of the southeastern region of the US. SEADS closed in winter 2006, giving up surveillance and control of their airspace to the Eastern Air Defense Sector (EADS) and the former Northeast Air Defense Sector (NEADS).

History

Cold War

The origins of the Southeast Air Defense Sector (SEADS) are in September 1957 with the formation of its predecessor organization, the Montgomery Air Defense Sector (MoADS) by Air Defense Command (ADC). It was established in September 1957 with a mission to train and maintain tactical flying units in state of readiness in order to defend the Southeastern United States, assuming control of former ADC Central Air Defense Force units. Its original region consisted of ADC atmospheric forces (fighter-interceptor and radar units) located east of the Mississippi River, south of the 34th parallel north and east to a designated line west of the 86th meridian west, southeast to the southernmost point of Key Largo Island, Florida.

It was consolidated on 1 January 1959 with the Shreveport and Miami Air Defense Sectors, defining a region south of 34th parallel north, bordering on the east along the intersection of the parallel southeast along the Georgia–South Carolina border to the Atlantic coastline. In the west, the sector was responsible for most of Eastern Texas south of the 34th parallel north, including the state of Louisiana, eastwards. It operated a Manual Air Direction Center (MDC) at Dobbins AFB, Georgia. The sector's mission was to train and maintain tactical flying units in state of readiness in order to defend the northeast United States while initially continuing to operate the MDC.

Beginning on 1 July 1958, it began operations of a SAGE (Semi-Automatic Ground Environment) Direction Center DC-09 32°45′15″N 086°14′29″W / 32.75417°N 86.24139°W / 32.75417; -86.24139 (MOADS-SAGE DC-09) at Gunter AFB, Alabama.

During the Cuban Missile Crisis, MoADS was the forward command center for Continental Air Defense Command, remaining on heightened alert for 36 days as part of Task Force 32. This period of constant alert was the longest alert period for any organization during the Cold War^[1]

On 1 April 1966, MoADS was inactivated, as were the other 22 sectors in the country. Most of its assets were assumed by the 32d Air Division; the 33d Air Division assumed assets in eastern North and South Carolina. The DC-09 SAGE Direction Center was assigned to the 32d Air Division, remaining in operation until 31 December 1969. Today it is used as offices by Air University, Air Education and Training Command at Gunter AFB.

Modern era

On 1 July 1987, the Montgomery Air Defense Sector (MOADS) was reactivated, and co-located with the 23d Air Division. The 23d Air Division was inactivated and all atmospheric defense assets of the Division were transferred to the MOADS, re-designated the Southeast Air Defense Sector (SEADS).

SEADS was responsible for the atmospheric defense of approximately 1,000,000 square miles (2,600,000 km²) of airspace and 3,000 miles (4,800 km) of coastline extending from Virginia to Texas. It was the busiest of the air defense sectors comprising the NORAD Continental United States North American Aerospace Defense Command Region. It operated a Sector Operations Control Center (SOCC) at Tyndall AFB, part of the Joint Surveillance System (JSS) which had replaced SAGE in 1983. This system, using the latest advances in computerized airspace control, relied on digitized radar inputs from Air Route Surveillance Radar (ARSR) sites jointly operated by the Federal Aviation Administration and the Air Force, and tethered aerostat radar balloons. More than 2,000 aircraft were detected and identified each day by SEADS technicians and operators.

On 1 October 1995, the Southeast Air Defense Sector was reassigned to the Florida Air National Guard; SEADS re-designated Southeast Air Defense Sector (ANG). It came under the Continental NORAD Region (CONR) Headquarters at Tyndall AFB, Florida.

On 1 November 2005, SEADS ceased air defense operations and its duties were absorbed into the Northeast Air Defense Sector which is now known as the Eastern Air Defense Sector. The SEADS transformed into the 601st Air and Space Operations Center and currently performs the duties as the Air Operations Center for AFNORTH.

Known Air National Guard units with an air defense mission under EADS were:

• 187th Fighter Wing (F-16), Alabama ANG, Montgomery, Alabama
• 125th Fighter Wing (F-16), Florida ANG, Jacksonville, Florida
• 183d Fighter Wing (F-16), Illinois ANG, Springfield, Illinois
• 159th Fighter Wing, (F-15), Louisiana ANG, New Orleans, Louisiana
• 169th Fighter Wing (F-16), South Carolina ANG, Eastover, South Carolina

Lineage

• Designated as Montgomery Air Defense Sector and organized on 8 September 1957^[2]

Discontinued on 1 April 1966^[2]

• Redesignated as Southeast Air Defense Sector and activated on 1 July 1987

Inactivated on 1 November 2005

Assignments

• 35th Air Division, 8 September 1957^[2]
• 32d Air Division, 15 November 1958^[2]
• 26th Air Division, 1 July 1963^[2]
• 73d Air Division, 1 October 1964 - 1 April 1966^[2]
• 23d Air Division, 1 July 1987
• Florida Air National Guard, 1 October 1996 - 1 November 2005

Stations

• Gunter AFB, Alabama, 8 September 1957 - 1 April 1966^[2][3]
• Tyndall AFB, Florida, 1 July 1987 - 1 November 2005

Components

Wing

• 4751st Air Defense Wing (Missile)

Eglin AFB Auxiliary Field #9, Florida, 1 October 1959 - 1 July 1962^[4]

Interceptor Squadrons

• 48th Fighter-Interceptor Squadron

Langley AFB, Virginia, 1987-1991

• 319th Fighter Interceptor Training Squadron

Homestead AFB, Florida, 1 March 1963 - 1 April 1966

• 482d Fighter-Interceptor Squadron

Seymour-Johnson AFB, North Carolina, 1 July 1965 - 1 April 1966

Missile Squadron

• 4751st Air Defense Squadron (Missile)

Eglin AFB Auxiliary Field #9, Florida, 1 July 1962 - 1 July 1963

Radar Squadrons

See also

• List of MAJCOM wings of the United States Air Force
• List of USAF Aerospace Defense Command General Surveillance Radar Stations
• Aerospace Defense Command Fighter Squadrons

• Alaskan Air Defense Sector (176th Air Control Squadron)
• Hawaii Region Air Operations Center (169th Aircraft Control and Warning Squadron)
• North American Aerospace Defense Command

• Western Air Defense Sector
• Eastern Air Defense Sector
• Southwest Air Defense Sector

References

Notes

Bibliography

 This article incorporates public domain material from websites or documents of the Air Force Historical Research Agency.

• Cornett, Lloyd H.; Johnson, Mildred W. (1980). A Handbook of Aerospace Defense Organization, 1946–1980 (PDF). Peterson AFB, CO: Office of History, Aerospace Defense Center. 
• Mueller, Robert (1989). Air Force Bases, Vol. I, Active Air Force Bases Within the United States of America on 17 September 1982 (PDF). Washington, DC: Office of Air Force History. ISBN 0-912799-53-6. 
• NORAD/CONAD Participation in the Cuban Missile Crisis, Historical Reference Paper No. 8, Directorate of Command History Continental Air Defense Command, Ent AFB, CO, 1 Feb 63 (Top Secret NOFORN declassified 9 March 1996)

Further reading

• Leonard, Barry (2009). History of Strategic Air and Ballistic Missile Defense (PDF). Vol II, 1955-1972. Fort McNair, DC: Center for Military History. ISBN 978-1-43792-131-1. 
• Maurer, Maurer, ed. (1982) [1969]. Combat Squadrons of the Air Force, World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-405-12194-6. LCCN 70605402. OCLC 72556. 
• McMullen, Richard F. (1964) The Fighter Interceptor Force 1962-1964, ADC Historical Study No. 27 (Confidential, declassified 22 March 2000)
• Redmond, Kent C.; Smith, Thomas M. (2000). From Whirlwind to MITRE: The R&D Story of The SAGE Air Defense Computer. Cambridge, MA: MIT Press. ISBN 978-0-262-18201-0. 
• Winkler, David F.; Webster, Julie L (1997). Searching the skies: The legacy of the United States Cold War Defense Radar Program (PDF). Champaign, IL: US Army Construction Engineering Research Laboratories. LCCN 97020912. 

External links

• Radomes.org Montgomery Air Defense Sector
• First Air Force Units
• Photos of Montgomery Air Defense Sector SAGE facilities
• History of Tyndall AFB
• Air Force Historical Research Agency
• SEADS mission overview

Aerospace Defense Command (ADC) Bases CONUS Amarillo Beale Charleston Davis-Monthan Dobbins Dover Dow Duluth Eglin Edwards Ellington Ellsworth England Ent Ethan Allen Fairfax Fallon Fort Heath Fort Lee Geiger George Glasgow Grand Forks Grenier Griffiss Gunter Hamilton Hancock Homestead Hurlburt Hunter Imeson Key West Kincheloe Kingsley Kirtland Lackland Laredo Larson Luke MacDill March Malmstrom McCoy McChord McClellan McGhee Tyson McGuire Minneapolis-St. Paul Minot Mitchel New Castle Niagara Falls Norton O'Hare Otis Oxnard Paine Perrin Peterson Pittsburgh Portland Presque Isle R.I. Bong Richards-Gebaur Robins K.I. Sawyer Selfridge Seymour Johnson Sioux City Stead Stewart Suffolk County Tinker Travis Truax Tyndall Vandenburg Vincent Walker Webb Westover Wright-Patterson Wurtsmith Youngstown Overseas Ernest Harmon Frobisher Bay Goose Bay Keflavik McAndrew Pepperrell Thule Stations CONUS Adair Aiken Almaden Alpena Antigo Arlington Heights Baker Bedford Bellefontaine Belleville Benton Blaine Brookfield Brunswick Bucks Harbor Burns Calumet Cambria Cape Charles Cape Cod Carmi Caswell Chandler Charleston Cheyenne Mountain Claysburg Clear Colville Condon Continental Divide Cottonwood Cross City Crystal Springs Curlew Custer Cut Bank Dallas Center Dauphin Island Dickinson Duncanville Eldorado Empire Finland Finley Flintstone Fordland Fort Fisher Fort Lee Fortuna Gettysburg Grand Marais Grand Rapids Guthrie Hanna City Havre Highlands Houma Hutchinson Joelton Keno Killeen Kingman Kirksville Klamath Lake Charles Lake City Las Cruces Las Vegas Lewistown Lockport Lufkin Lyndonville Madera Makah Mica Peak Miles City Mill Valley Minot Montauk Moriarty Mount Hebo Mount Laguna Mount Lemmon Naselle North Bend North Charleston North Truro Oklahoma City Olathe Omaha Opheim Osceola Othello Owingsville Ozona Palermo Point Arena Port Austin Port Isabel Pyote Red Bluff Rochester Rockport Rockville (Indiana) Roslyn Rye Saint Albans San Clemente Island Santa Rosa Island Saratoga Springs Sault Ste Marie Shemya Snelling Snow Mountain Sweetwater Texarkana Tierra Amarilla Thomasville Tonopah Topsham Two Creeks Wadena Walnut Ridge Watertown Waverly West Mesa Willow Run Winnemucca Winslow Winston-Salem Woomera Yaak Zapata Overseas Armstrong Baldy Hughes Beausejour Cape Makkovik Cartwright Cut Throat Island Elliston Ridge Fox Harbour Hofn Hopedale Kamloops La Scie Langanes Latrar Melville Puntzi Mountain Ramore Red Cliff Rockville Saglek St. Anthony Saskatoon Mountain Sioux Lookout Spotted Island Stephenville Air Defense units Forces Central Air Defense Eastern Air Defense Iceland Western Air Defense First Fourth Tenth Fourteenth Air Divisions 8th 9th 20th 21st 23d 24th 25th 26th 27th 28th 29th 30th 31st 32d 33d 34th 35th 36th 37th 58th 64th 73d 85th Sectors Albuquerque Bangor Boston Chicago Detroit Duluth Goose Grand Forks Great Falls Kansas City Los Angeles Minot Montgomery New York Oklahoma City Phoenix Portland Reno Sault Sainte Marie San Francisco Seattle Sioux City Spokane Stewart Syracuse Washington Wings Fighter 1st 4th 23d 32d 33d 50th 52d 56th 78th 81st 325th 328th 507th Detection and Control 71st 73d 551st 552d Air Defense 46th 4620th 4621st 4622d 4624th 4625th 4627th 4628th 4683d 4700th 4702d 4703d 4704th 4705th 4706th 4707th 4708th 4709th 4710th 4711th 4750th 4751st 4752d 4756th 4780th Groups Fighter 1st 4th 14th 15th 23d 32d 33d 50th 52d 53d 54th 56th 57th 78th 79th 81st 82d 84th 325th 326th 327th 328th 329th 337th 343d 355th 408th 412th 414th 473d 475th 476th 478th 507th Air Defense 10th 500th 501st 502d 503d 514th 515th 516th 517th 518th 519th 520th 521st 525th 527th 528th 529th 530th 533d 534th 564th 566th 567th 568th 575th 637th 665th 678th 692d 701st 751st 762d 765th 778th 780th 827th 858th 4606th 4620th 4676th 4700th 4721st 4722d 4727th 4728th 4729th 4730th 4731st 4732d 4733d 4734th 4735th 4750th 4756th Aircraft Control & Warning 503d 505th 540th 541st 542d 543d 544th 545th 546th 563d 564th 565th 566th Squadrons Aerospace Defense Command Fighter Squadrons Aircraft Control and Warning Squadrons Major weapon systems Electronic TB-29 EB-57 EC-121 Fighters Propellor: F-47 F-51 P-61 F-82 Subsonic Jet: P-80 F-84 F-86 F-89 F-94 Supersonic Jet: F-101 F-102 F-104 F-106 Missiles AIM-4 AIM-26 AIR-2 CIM-10 Ships Guardian Interceptor Interdictor Interpreter Investigator Locator Lookout Outpost Pickett Protector Scanner Searcher Skywatcher Tracer Watchman Vigil Texas Towers Texas Tower 2 Texas Tower 3 Texas Tower 4 Miscellaneous Air Defense Command Emblem Gallery (on Wikimedia Commons) General Surveillance Radar Stations