The 478th Aeronautical Systems Wing (478 ASW) is a wing

Wing (air force unit)

Wing is a term used by different military aviation forces for a unit of command. The terms wing, group or Staffel are used for different-sized units from one country or service to another....

 of the United States Air Force

United States Air Force

The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

 based out of Wright-Patterson Air Force Base

Wright-Patterson Air Force Base

Wright-Patterson Air Force Base is a United States Air Force base in Greene and Montgomery counties in the state of Ohio. It includes both Wright and Patterson Fields, which were originally Wilbur Wright Field and Fairfield Aviation General Supply Depot. Patterson Field is located approximately...

, Ohio

Ohio

Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

.

The antecedent group was a Fourth Air Force RTU and west coast air defense fighter unit, 1943-1944. It provided Air Defense in the North-Central United States, 1957-1963. From 2004 to the present it provided Depot level maintenance.

Mission

The 478th ASW is a depot-level maintenance organization tasked with the servicing of F-22A Raptor aircraft and weapons systems.

Lineage

• Constituted as 478th Fighter Group on 12 October 1943

Activated on 1 December 1943

Disbanded on 31 March 1944

• Reconstituted and redesignated 478th Fighter Group (Air Defense), on 11 December 1956

Activated on 28 February 1957

Resesignated 478th Fighter Wing (Air Defense) on 28 December 1960

Inactivated on 1 July 1963

• Reactivated and redesignated 478th Aeronautical Systems Wing, Appx 2004.

Assignments

• San Francisco Fighter Wing
  San Francisco Fighter Wing
  The San Francisco Air Defense Region is an inactive United States Air Force unit. Its last assignment was with the Fourth Air Force, stationed in San Francisco, California. It was inactivated on 31 August 1945- History:...
  
  , 1 December 1943
• Seattle Fighter Wing, 3 February-31 March 1944
• Central Air Defense Force
  Central Air Defense Force
  The Central Air Defense Force is an inactive United States Air Force organization. Its last assignment was with Air Defense Command being stationed at Richards-Gebaur Air Force Base, Missouri. It was deactivated on July 1, 1960.-History:...
  
  , 28 February 1957
• 31st Air Division, 8 February 1957
• 29th Air Division, 1 January 1959
• Central Air Defense Force
  Central Air Defense Force
  The Central Air Defense Force is an inactive United States Air Force organization. Its last assignment was with Air Defense Command being stationed at Richards-Gebaur Air Force Base, Missouri. It was deactivated on July 1, 1960.-History:...
  
  , 1 July 1959
• Grand Forks Air Defense Sector
  Grand Forks Air Defense Sector
  The Grand Forks Air Defense Sector is an inactive United States Air Force organization. Its last assignment was with the Air Defense Command 29th Air Division, being stationed at Grand Forks Air Force Base , North Dakota...
  
  , 28 December 1960-1 July 1963
• Air Materiel Command, 2004–present (Apprx)

Components

• 18th Fighter-Interceptor Squadron, 1 February 1961-1 July 1963
• 546th Fighter Squadron
  546th Fighter Squadron
  The 546th Fighter Squadron ' is an inactive United States Air Force unit. Its last assignment was to the 478th Fighter Group and stationed at Portland Army Air Base, Oregon...
  
  , 1 December 1943-31 March 1944

Stations

• Hamilton Field, California
  California
  California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
  
  , 1 December 1943
• Santa Rosa Army Airfield, California
  California
  California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
  
  , 12 December 1943
• Redmond Army Airfield, Oregon
  Oregon
  Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...
  
  , 3 February-31 March 1944
• Grand Forks AFB, North Dakota
  North Dakota
  North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....
  
  , 20 February 1957-1 July 1963
• Wright-Patterson AFB, Ohio
  Ohio
  Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...
  
  , 2004–present (Apprx)