Marine Aircraft Group 41
A United States Marine Corps Reserve aviation group that organizes, trains, equips, and sustains multiple fixed-wing, tiltrotor, helicopter, logistics, and aviation-support units.
Last updated August 26, 2026
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Overview
Marine Aircraft Group 41, commonly abbreviated MAG-41, is a United States Marine Corps Reserve aviation organization headquartered at Naval Air Station Joint Reserve Base Fort Worth in Texas. It is part of the 4th Marine Aircraft Wing and provides a command structure through which Marine aviation units can train, maintain readiness, and deploy as an integrated aviation combat element. Unlike a commercial brand, MAG-41 is a military formation rather than a consumer-facing enterprise: its identity is associated with operational capability, reserve-force readiness, aviation training, and support to Marine Air-Ground Task Forces and joint or combined commands. The group traces its institutional history to Marine Base Defense Group 41, organized at Marine Corps Air Station El Toro, California, on 1 January 1943. It was redesignated Marine Aircraft Group 41 on 10 November 1944 as Marine aviation expanded during the Second World War. Its wartime role was to administer and supervise attached squadrons preparing for combat in the Pacific. MAG-41 grew from a headquarters, service element, and fighter squadron into a larger organization that included six tactical squadrons and a maintenance squadron. Its training responsibilities included carrier operations and close air support, reflecting the increasing importance of Marine aviation in amphibious and island campaigns. The group was also the first Marine aviation organization to receive and train with the Curtiss SB2C Helldiver. By the end of the war, it had prepared nearly twenty fighter, dive-bomber, and torpedo squadrons for combat. It was deactivated in October 1945. The organization was reactivated on 1 July 1962 at Naval Air Station Dallas as part of the 4th Marine Aircraft Wing and was designated a Marine Air Reserve Training Detachment. During the 1960s and 1970s, its subordinate units moved through several generations of aircraft, including the FJ-4B and AF-1E Fury, F-8 Crusader variants, UH-34 Seahorse, CH-53A Sea Stallion, RF-8G reconnaissance aircraft, and later the F-4 Phantom II. These transitions reflected both the modernization of Marine aviation and the changing structure of the reserve force. VMF-112, one of the group’s central fighter units, became known as the Cowboys in 1967 and eventually became Marine Fighter Attack Squadron 112. MAG-41 entered a new technological era in the early 1990s. VMFA-112 retired its final F-4S Phantom II aircraft in February 1992 and began receiving F/A-18A Hornets later that year. In August 1994, Marine Aerial Refueler Transport Squadron 234 joined the group after the closure of Naval Air Station Glenview, bringing KC-130T Hercules air-refueling and assault-support capability to the Dallas-based reserve formation. In the twenty-first century, elements of MAG-41 supported United States operations in Afghanistan and Iraq. Helicopter capability returned to the group in 2009 through HMM-764, which subsequently transitioned from CH-46E Sea Knights to MV-22B Ospreys in January 2013. This transition introduced tiltrotor capability to Marine Reserve Aviation. The group’s current structure includes a fighter-attack squadron, a KC-130J squadron, a C-40 transport squadron, two F-5 aggressor squadrons, a Marine light-attack helicopter squadron, an MV-22B tiltrotor squadron, an aviation logistics squadron, and two Marine wing-support squadrons. Its units and detachments operate from several Marine Corps and joint bases across the United States. MAG-41’s mission is to generate an expeditionary aviation combat element, a Combined Forces Air Component Commander element, aviation logistics, fighter and adversary training, and aerial refueling or assault-support capabilities for deployment as a MAG, an aviation combat element, a special-purpose Marine Air-Ground Task Force, or a combination of capabilities.
History
Marine Aircraft Group 41 originated as Marine Base Defense Group 41, established at Marine Corps Air Station El Toro, California, on 1 January 1943. The organization was created during the rapid expansion of Marine aviation in the Second World War. On 10 November 1944 it received the MAG-41 designation, with responsibility for administering and supervising attached squadrons preparing for combat in the Pacific. Its wartime structure expanded from a headquarters and service element with one fighter squadron into a formation containing six tactical squadrons and a maintenance squadron, now associated with Marine Aviation Logistics Squadron 41. During the war, the group supported the development of Marine aviation doctrine for Pacific operations. Its training program covered carrier operations and close air support, at a time when land-based Marine aircraft were being used against bypassed enemy bases and Marine aviation was increasingly integrated with amphibious operations. MAG-41 was the first Marine aviation unit to receive and train with the Curtiss SB2C Helldiver. By the end of the conflict, the group had trained almost twenty fighter, dive-bomber, and torpedo squadrons. It was deactivated in October 1945 after the war ended. MAG-41 returned to service on 1 July 1962 as part of the 4th Marine Aircraft Wing at Naval Air Station Dallas, initially under the designation Marine Air Reserve Training Detachment. Its early postwar composition included VMF-111, VMF-112, VMF-413, HMM-777, and HMM-762. These units operated aircraft such as the FJ-4B Fury, AF-1E Fury, and UH-34 Seahorse. VMF-413 and HMM-762 were deactivated in 1963, while VMF-111 and VMF-112 moved into supersonic operations with the F-8A Crusader. VMF-111 was later deactivated in 1965, with its personnel and aircraft absorbed by VMF-112. In 1967, VMF-112 adopted the Cowboys identity and a locally themed insignia. The 1970s brought additional aircraft and mission changes. VMJ-4 operated the RF-8G reconnaissance version of the Crusader, while VMF-112 moved through improved F-8K and F-8H models. The unit became VMF(AW)-112 in 1971 to reflect its all-weather capability. HMM-777 exchanged UH-34D aircraft for CH-53A Sea Stallions in 1972 and became a heavy helicopter squadron. Budget reductions led to its deactivation in 1980, after which its personnel and aircraft formed a detachment of HMH-772. That detachment supported the 4th Marine Aircraft Wing for more than a decade, including service in Okinawa connected with Operation Desert Storm, before being deactivated in 1993. VMF(AW)-112 later transitioned to the F-4 Phantom II and was redesignated VMFA-112 in 1983. In February 1992, it retired the last Marine Corps F-4S aircraft and soon began operating F/A-18A Hornets. In August 1994, VMGR-234 transferred to MAG-41 from the former Naval Air Station Glenview after that base closed through the federal Base Realignment and Closure process. The move added a major aerial-refueling and assault-support component to the Texas-based group. During the 2000s, MAG-41 subordinate units deployed in support of the wars in Afghanistan and Iraq. In 2009, helicopter capability returned to the group when it assumed responsibility for HMM-764, formerly associated with MAG-46. HMM-764 transitioned from CH-46E Sea Knights to MV-22B Ospreys in January 2013, introducing tiltrotor capability to the Marine reserve aviation structure. Today, MAG-41 is a geographically distributed reserve aviation command headquartered at Naval Air Station Joint Reserve Base Fort Worth. Its subordinate organizations include VMFA-112, VMGR-234, VMFT-401, VMFT-402, VMR-1, VMM-764, HMLA-775, Marine Aviation Logistics Squadron 41, Marine Wing Support Squadrons 471 and 473, and multiple site-support detachments. Its stated purpose is to train, man, equip, and sustain deployable aviation combat, logistics, adversary, transport, refueling, and support capabilities for Marine Air-Ground Task Forces and joint or combined operations.
- 2013
Tiltrotor transition completed
[1]HMM-764 transitioned from CH-46E aircraft to MV-22B Ospreys, expanding Marine Reserve Aviation’s tiltrotor capability.
- 2009
Helicopter capability returned
[1]MAG-41 assumed responsibility for HMM-764 after its transfer from MAG-46.
- 1994
VMGR-234 transferred to MAG-41
[1]The transfer added KC-130 Hercules aerial-refueling and assault-support capability after the closure of NAS Glenview.
- 1992
VMFA-112 began Hornet operations
[1]The group’s fighter component replaced its final F-4S Phantom II aircraft with F/A-18A Hornets.
- 1962
Postwar reactivation
[1]The group was reactivated on 1 July at Naval Air Station Dallas as part of the 4th Marine Aircraft Wing.
- 1945
World War II organization deactivated
[1]MAG-41 was formally deactivated in October after the end of the war.
- 1944
Redesignated Marine Aircraft Group 41
[1]On 10 November 1944, the group adopted the MAG-41 designation and expanded its Pacific-war training responsibilities.
- 1943
Marine Base Defense Group 41 organized
[1]The predecessor organization was established at MCAS El Toro, California, on 1 January 1943.
Products and positioning
A reserve-force aviation command focused on integrated Marine aviation readiness, expeditionary support, and deployable combat capability.
Military aviation capability
Expeditionary aviation combat element
MAG-41 organizes deployable aviation combat elements by combining fighter, transport, aerial-refueling, assault-support, tiltrotor, helicopter, logistics, and wing-support capabilities. These elements can support a Marine Air-Ground Task Force or be assigned to joint and combined operational commands.
Military support capability
Aviation logistics and wing support
Marine Aviation Logistics Squadron 41 and Marine Wing Support Squadrons 471 and 473 provide the maintenance, supply, infrastructure, engineering, and operational support needed to sustain aviation units across dispersed locations.
Marketing campaigns
- 2003Iraq operations
Iraq
MAG-41 units supported United States operations in Iraq during the post-2003 conflict period.
Outcome. The deployments extended the group’s role as a source of mobilizable Marine aviation capability.
- 2001Afghanistan operations
Afghanistan
Multiple MAG-41 subordinate units deployed in support of United States operations in Afghanistan.
Outcome. The group contributed reserve aviation personnel and aircraft to the broader Marine and joint operational effort.
- 1991Operation Desert Storm support
Okinawa · Persian Gulf region
A detachment connected with MAG-41’s reserve heavy-lift structure deployed to Okinawa in support of operations associated with Desert Storm.
Outcome. The deployment demonstrated the reserve aviation group’s ability to support overseas contingency operations.
- 1943Pacific War aviation training
Pacific theater
The wartime group trained and administered fighter, dive-bomber, torpedo, and carrier-oriented Marine squadrons for Pacific combat and amphibious-support operations.
Outcome. Nearly twenty squadrons were prepared for combat by the end of the Second World War.
Brand decisions
2013
Transition HMM-764 to MV-22B OspreyGeneration changeBackground
The Marine Corps was replacing CH-46E Sea Knights with the MV-22B tiltrotor across its aviation force.
Action taken
HMM-764 adopted the MV-22B after operating CH-46E aircraft.
Aftermath
Tiltrotor capability became part of the Marine Reserve Aviation structure represented by MAG-41.
1994
Add VMGR-234 and KC-130 capabilityStrategyBackground
The closure of Naval Air Station Glenview required the reassignment of Marine reserve aviation assets.
Action taken
VMGR-234 transferred to MAG-41 with KC-130T Hercules aircraft.
Aftermath
MAG-41 gained an important aerial-refueling and assault-support capability and became a more diversified aviation group.
1992
Replace the F-4 Phantom II with the F/A-18 HornetGeneration changeBackground
VMFA-112 was the last Marine Corps Phantom II squadron, but the aging F-4 platform no longer represented the group’s desired long-term fighter capability.
Action taken
The squadron retired its final F-4S aircraft and began receiving F/A-18A and F/A-18B Hornets.
Aftermath
The transition moved MAG-41’s fighter capability into the modern supersonic multirole era.
Recent events
- 2013
HMM-764 transitioned to MV-22B Ospreys[1]
Product generation
The transition from CH-46E Sea Knights to MV-22B Ospreys brought tiltrotor aircraft into Marine Reserve Aviation and restored rotary-wing-related capability within the group.
- 1994
VMGR-234 joined Marine Aircraft Group 41[1]
M&A
Following the closure of Naval Air Station Glenview, VMGR-234 moved to the Dallas area and added KC-130 Hercules aerial-refueling and assault-support capability to MAG-41.
- 1992
VMFA-112 began transition from the F-4 Phantom II to the F/A-18 Hornet[1]
Product generation
The group’s fighter capability entered a modernization phase as VMFA-112 retired its final F-4S aircraft and received F/A-18A Hornets.
- 1962
Marine Aircraft Group 41 reactivated as a Marine Air Reserve Training Detachment[1]
Other
MAG-41 was reactivated at Naval Air Station Dallas as part of the 4th Marine Aircraft Wing, beginning its postwar reserve-era history.
Sources1 sources
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