The 4735th Air Defense Group is a discontinued 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...

 organization. It was assigned to the Boston Air Defense Sector

Boston Air Defense Sector

The Boston Air Defense Sector is an inactive United States Air Force Air Defense Command organization. Its last assignment was with the ADC 26th Air Division, being stationed at Stewart Air Force Base, New York.-History:...

 throughout its existence, being stationed at Otis Air Force Base, Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

. It was last active on 1 August 1959.

History

Organized at Otis AFB, Massachusetts, replacing 33d Fighter Group when the 33rd Fighter Wing and its components inactivated and were replaced as the host organization for Otis by elements of the 551st Airborne Early Warning and Control Wing's 551st Air Base Group. The 58th Fighter-Interceptor Squadron (FIS), flying F-89 "Scorpion" aircraft and 60th Fighter-Interceptor Squadron, flying F-94 "Starfire" aircraft, former squadrons of the 33rd Fighter Group were reassigned to the 4735th. Assumed responsibility for air defense of eastern Massachusetts. Aircraft maintenance for the two FIS was performed by the 602nd Consolidated Aircraft Maintenance Squadron, which was activated at Otis along with the group. In February 1959, the 60th FIS converted to F-101 "VooDoo" aircraft, becoming the first F-101 squadron in Air Defense Command. Discontinued 1 August 1959 when the 58th Fighter-Interceptor Squadron relocated to Walker AFB, leaving only one operational fighter squadron at Otis. The 60th Fighter-Interceptor Squadron was reassigned directly to Boston Air Defense Sector, and the 602nd CAMS was inactivated.

Lineage

• Organized as 4735th Air Defense Group on 18 August 1957

Discontinued on 1 August 1959

Components

• 58th Fighter-Interceptor Squadron, 18 August 1957 - 1 August 1959
• 60th Fighter-Interceptor Squadron, 18 August 1957 - 1 August 1959
• 602nd Consolidated Aircraft Maintenance Squadron,m 18 August 1957 - 8 July 1958

Aircraft

• F-89H 1957-1959
• F-89J 1957-1959
• F-94C 1957-1959
• F-101B 1959