Patrol Bombing Squadron 101

Patrol Bombing Squadron 101
Unit name	Patrol Bombing Squadron 101
Dates	1943–1946
Country	United States
Branch	United States Navy
Role	Maritime patrol, anti-submarine warfare, reconnaissance
Garrison	NAS Kaneohe Bay; NAS San Diego
Nickname	TBD
Battles	Pacific Theater of World War II, Aleutian Islands Campaign, Gilbert and Marshall Islands campaign
Aircraft	PB4Y-1 Liberator, PB4Y-2 Privateer

Patrol Bombing Squadron 101 was a United States Navy maritime patrol and anti-submarine squadron active during World War II. Established in 1943, the squadron conducted long-range reconnaissance, anti-shipping strikes, and convoy protection across the Pacific Theater. It operated heavy patrol bombers and took part in major campaigns in the Central Pacific, contributing to naval aviation tactics against enemy submarines and surface units.

History

The squadron was commissioned amid the expansion of the United States Navy during World War II and trained under the auspices of Naval Air Station San Diego and Naval Air Station Kaneohe Bay. Early organization drew personnel from Patrol Wing 1 and Patrol Wing 2 pools, reflecting Navy plans developed after lessons from the Battle of the Atlantic and the Pearl Harbor attack. The unit's formation aligned with strategic demands following the Battle of Midway and during the Guadalcanal Campaign, as Pacific maritime patrol requirements intensified. Training incorporated tactics from anti-submarine warfare doctrine promulgated by Fleet Air Wing 2 and influenced by operations in the Aleutian Islands Campaign. Throughout its service the squadron rotated through bases including NAS Kodiak, NAS Kaneohe Bay, and forward anchorage facilities supporting the Third Fleet and Fifth Fleet operations.

Organization and Aircraft

Organizationally, the squadron fell under the administrative control of Fleet Air Wing commands and operational tasking from numbered fleets such as the Third Fleet (United States) and the Fifth Fleet (United States). The unit's aircrews flew heavy four-engine patrol bombers, notably the Consolidated PB4Y-1 Liberator and later the Consolidated PB4Y-2 Privateer, platforms derived from the B-24 Liberator strategic bomber. Maintenance support came from carrier tender-style logistics provided by units like USS Curtiss (AV-4) and shore-based depots such as Naval Air Station Pearl Harbor. Squadron structure included flight crews, ordnance sections, radio operators trained on AN/APS-2 and similar radar sets, and intelligence officers coordinating with COMSOWESPAC directives. Aircrew training incorporated procedures from Naval Aviation Cadet Program standards and survival instruction influenced by First Aid at Sea practices.

Operations and Deployments

Deployments saw the squadron conducting patrols across the Central Pacific, from staging points at Kanton Island to forward bases supporting operations in the Gilbert Islands and the Marshall Islands. Missions included long-range surface searches, night anti-shipping strikes linked to carrier task force movements at Task Force 58, and coordinated reconnaissance supporting invasions such as the Battle of Tarawa and the Battle of Kwajalein. The squadron also carried out escort and barrier patrols during transits between Henderson Field and staging areas, while providing aerial mining and strike support coordinated with Admiral Chester W. Nimitz's staff. In northern waters, detachments operated from Dutch Harbor and Adak Island during heightened activity related to the Aleutian Islands Campaign and monitored shipping lanes threatened by Imperial Japanese Navy submarines.

Engagements and Combat Record

Combat sorties targeted enemy merchant shipping and escorted convoys against submarine threats; the squadron recorded multiple submarine contacts reported through Ultra-era intelligence channels and local radar warnings. Notable engagements included coordinated strikes against supply convoys during the Marianas campaign and interdiction missions supporting Operation Flintlock. Aircraft of the squadron conducted anti-shipping bombing runs and depth-charge attacks, employing ordnance compatible with tactics demonstrated in actions such as the Battle of the Philippine Sea air-sea battles. Claims and after-action reports were filed with Fleet Air Wing headquarters and evaluated alongside signals intelligence from Station HYPO. Losses included aircraft lost to enemy fighters and anti-aircraft fire during low-level attack profiles, with crews rescued by crash boat and air-sea rescue units where possible.

Personnel and Commanders

Commanding officers arose from the ranks of United States Naval Aviator officers, many of whom had prior experience in patrol squadrons or carrier aviation. Squadron leadership coordinated with staff officers from Patrol Wing 1 and liaison officers assigned from Commander, Air Force, Pacific Fleet. Aircrew rosters included patrol plane commanders, co-pilots, navigators trained in celestial navigation influenced by Naval Observatory methods, and enlisted aircrew specialists such as radiomen and gunners. The squadron's medical support worked with Naval Hospital Pearl Harbor and survival training involved interaction with United States Coast Guard rescue coordination centers. Individual personnel earned citations consistent with Navy Cross and Air Medal award standards during distinguished missions.

Insignia and Traditions

Unit insignia reflected naval aviation heraldry traditions and often incorporated regional motifs associated with Pacific deployments, aligning visually with insignia conventions used across Patrol Wings. Squadron markings were applied to PB4Y tail fins and fuselages, following guidance from Bureau of Aeronautics painting standards. Ceremonial practices included change-of-command traditions observed at admiral's review events and commemorative reunions held postwar at locations such as San Diego and Honolulu. Crew traditions blended naval customs from Carrier Air Group communities with patrol squadron rituals such as cross-deck exchange programs and squadron history nights featuring accounts of engagements like those during the Gilbert and Marshall Islands campaign.

Legacy and Disbandment

Following the end of World War II and demobilization directives issued by Bureau of Naval Personnel, the squadron was reduced and eventually disestablished in 1946 as part of wider postwar drawdowns affecting United States Navy Reserve and active-duty aviation units. Aircraft were transferred to depot storage at Naval Air Station Alameda or reassigned to other patrol units adapting to Cold War requirements. Veterans of the squadron participated in veterans' associations and contributed oral histories archived by institutions such as the National Naval Aviation Museum and the Veterans History Project. The squadron's operational lessons influenced later Cold War maritime patrol developments embodied in aircraft like the P-3 Orion and doctrines promulgated by subsequent Fleet Air Wing organizations.

Category:United States Navy patrol squadrons Category:Units and formations of the United States Navy in World War II