# Fleet Replacement Squadron

A Fleet Replacement Squadron (FRS), is a unit of the United States Navy or Marine Corps that trains Naval Aviators, Naval Flight Officers (NFOs) and enlisted Naval Aircrewmen on the specific front-line aircraft they have been assigned to fly. Students, referred to as Replacement Pilots, Replacement Flight Officers or Replacement Aircrew are either newly winged aviators (Category I), aviators transitioning from one type aircraft to another (Category II), or aviators returning to the cockpit after a period of non-flying (Category III). After completing the training regimen, graduates are assigned to fleet squadrons. Additionally, FRSs are responsible for training aircraft mechanics, providing replacement aircraft for fleet squadron attrition, and standardizing maintenance and aircraft operations.
The U.S. Navy and U.S Marine Corps sometimes share FRSs. For example, up until the recent establishment of an FRS for the Navy's new CMV-22 Osprey aircraft USN personnel were trained by the USMC's VMMT-204, and all USMC F-35C pilots and maintenance personnel are trained by the USN's VFA-125. In the past, USN H-53 students were once trained at the USMC H-53 FRS and F/A-18C/D students of both service were trained in either the USMC F/A-18C/D FRS or by one of the USN's F/A-18C/D FRSs. An FRS which trains students of both services will be staffed with instructors of both services as well.
From 1958 to 1970 the FRSs for carrier based aircraft were organized under Readiness Carrier Air Group FOUR (RCVG-4) or Readiness Antisubmarine Carrier Air Group FIFTY (RCVSG-50) in the Atlantic Fleet and Readiness Carrier Air Group TWELVE (RCVG-12) or Readiness Antisubmarine Carrier Air Group FIFTY ONE (RCVSG-51) in the Pacific Fleet. These Readiness Carrier Air Groups were colloquially called "Readiness Air Groups" or "RAGs" for short. In 1963 RCVG-4 and RCVG-12 were redesignated Readiness Carrier Air Wings RCVW-4 and RCVW-12 which had no affect on the use of the term "RAG" and in 1970 they and RCVSG-50 and 51 were disestablished which also had no affect on the use of the term "RAG" and to this day Fleet Replacement Squadrons are still referred to as "RAGs". When RCVW-4 and 12 and RCVSG-50 and 51 were disestablished in 1970 the Atlantic Fleet Fleet Replacement Squadrons were all realigned under the respective type wings and in the Pacific Fleet under the respective functional wings as they were all established from 1970 through 1973.
Note: The parenthetical (1st) or (2nd) appended to some squadron designations in the tables below are not a part of that squadron's designation. They are added to indicate that the designation was used more than one time during the history of U.S. Naval Aviation and to specify which use of the designation is indicated.

## Currently Active USN and USMC Fleet Replacement Squadrons

Since the disestablishment of RCVW-4, RCVW-12, RCVSG-50 and RCVSG-51 in 1970 all U.S Navy Fleet Replacement Squadrons (FRS)s are placed organizationally under the Type Wing commander for the respective aircraft type/model. U.S Marine Corps Fleet Replacement Squadrons are organizationally aligned under a Marine Aircraft Group (MAG) which operates that type/model aircraft.

### US Navy

| Squadron Designation | Squadron Lineage | Current Aircraft | Wing | Notes |
| HM-12(2nd) Sea Dragons | AWSTS: 1 Oct 1994-1 Oct 2015 HM-12(2nd): 1 Oct 2015–present | MH-53E Sea Dragon | Helicopter Sea Combat Wing, U. S. Atlantic Fleet | NS Norfolk, VA Established from Airborne Mine Countermeasures Weapon Systems Training School on 1 Oct 2015 as an FRS. There was an earlier squadron designated HM-12 also called the "Sea Dragons" which existed from 1 Apr 1971 to 30 Sep 1994 which was also an FRS. |
| HSC-2 Fleet Angels | HC-2(2nd): 1 Apr 1987-24 Aug 2005 HSC-2: 24 Aug 2005–present | MH-60S Seahawk | Helicopter Sea Combat Wing, U. S. Atlantic Fleet | NS Norfolk, VA Established 1 Apr 1987 as the second squadron designated HC-2. Became an FRS in 1997. The earlier squadron designated HC-2 also called "Fleet Angels" existed from 1 Apr 1948 to 30 Sep 1977. |
| HSC-3 Merlins | HC-3: 1 Sep 1967-31 Oct 2005 HSC-3: 31 Oct 2005–present | MH-60S Seahawk | Helicopter Sea Combat Wing, U. S. Pacific Fleet | NAS North Island, CA Established 1 Sep 1967 as HC-3. Became an FRS in 1982. |
| HSM-40 Air Wolves | HSL-40: 4 Oct 1985-1 Nov 2009 HSM-40: 1 Nov 2009–present | MH-60R Seahawk | Helicopter Maritime Strike Wing, U. S. Atlantic Fleet | NS Mayport, FL Established 4 Oct 1985 as HSL-40 as an FRS. |
| HSM-41 Sea Hawks | HSL-41: 21 Jan 1983-8 Dec 2005 HSM-41: 8 Dec 2005–present | MH-60R Seahawk | Helicopter Maritime Strike Wing, U. S. Pacific Fleet | NAS North Island, CA Established 1 Jan 1983 as HSL-41 as an FRS. |
| VAQ-129 Vikings | VAH-10: 1 May 1961-1 Sep 1970 VAQ-129: 1 Sep 1970–present | EA-18G Growler | Electronic Attack Wing, U.S. Pacific Fleet | NAS Whidbey Island, WA Established 1 May 1961 as VAH-10. Became an FRS in 1971. |
| VAW-120 Grey Hawks | RVAW-120: 1 Jul 1967-1 May 1983 VAW-120: 1 May 1983 – present | E-2C,D Hawkeye C-2A Greyhound | Airborne Command & Control and Logistics Wing | NAS Norfolk, VA Established 1 Jul 1967 as RVAW-120 as an FRS. |
| VFA-106 Gladiators | VFA-106: 27 Apr 1984–present | F/A-18E, F/A-18F Super Hornet | Strike Fighter Wing, U.S. Atlantic Fleet | NAS Oceana, VA Established 27 Apr 1984 as an FRS. Adopted nickname and insignia of VA-106 which had been disestablished in 1969. |
| VFA-122 Flying Eagles | VFA-122: 1 Oct 1998–present | F/A-18E, F/A-18F Super Hornet | Strike Fighter Wing, U.S. Pacific Fleet | NAS Lemoore, CA Established 1 Oct 1998 as an FRS. Adopted nickname and insignia of VA-122 which had been disestablished in 1991. |
| VFA-125 Rough Raiders | VFA-125: 13 Nov 1980–present (inactive 1 Oct 2010 – 12 Jan 2017) | F-35C Lightning II | Joint Strike Fighter Wing | NAS Lemoore, CA Established 13 Nov 1980 as an FRS. Adopted nickname and insignia of VA-125 which had been disestablished in 1977. Deactivated on 1 Oct 2010 as a Hornet FRS and reactivated as a F-35C FRS on 12 Jan 2017. |
| VP-30 Pro's Nest | VP-30: 30 Jun 1960–present | EP-3 Aries II P-8A Poseidon | Commander, Patrol and Reconnaissance Group | NAS Jacksonville, FL Established 30 Jun 1960 as an FRS. |
| VQ-7 Roughnecks | Naval Training Support Unit: 1992-1 Nov 1999 VQ-7: 1 Nov 1999–present | E-6B Mercury | Strategic Communications Wing ONE | Naval Air Facility Tinker AFB, OK Established 1 Nov 1999 as an FRS. |
| VRM-50 Sunhawks | VRM-50: 1 Oct 2019 – present | CMV-22B Osprey | Fleet Logistics Multi-Mission Wing | NAS North Island Established 1 Oct 2019 as an FRS |

### US Marine Corps

| Squadron Designation | Current Aircraft | Marine Aircraft Group | Station |
| HMHT-302 | CH-53 Super Stallion | MAG-29 | MCAS New River, NC |
| HMLAT-303 | Bell AH-1Z Viper Bell UH-1Y Venom | MAG-39 | MCAS Camp Pendleton, CA |
| VMMT-204 | MV-22 Osprey | MAG-26 | MCAS New River, NC |
| VMFAT-501 | F-35B Lightning II | MAG-31 | MCAS Beaufort, SC |
| VMFAT-502 | F-35B Lightning II | MAG-11 | MCAS Miramar, CA |
| VMUT-2 | MQ-9A Reaper (Future) | MAG-14 | MCAS Cherry Point, NC |

## Disestablished, Deactivated, Re-designated or otherwise former Fleet Replacement Squadrons

Beginning 1 April 1958 the Navy organized the training squadrons for its carrier based aircraft into Readiness Carrier Air Groups (RCVG) (later renamed Readiness Carrier Air Wings (RCVW)) or Readiness Anti-Submarine Carrier Air Groups (RCVSG). The training squadrons for non-carrier based aircraft operated separately from the RCVGs/RCVWs and RCVSGs. While most squadrons listed below were dedicated Fleet Replacement Squadrons, some such as VAQ-33, VAQ-130, HC-1, HC-2 and HC-16 operated a department which performed as an FRS while the remainder of the squadron performed operational or other fleet support functions. The tables below list the former Fleet Replacement Squadrons of the U.S Navy and U.S. Marine Corps.

### Squadrons of former Readiness Carrier Air Group FOUR (RCVG-4)/Readiness Carrier Air Wing FOUR (RCVW-4)

On 1 April 1958 Carrier Air Group FOUR (tail code AD) was re-tasked as the Atlantic Fleet's training air group and it was redesignated Readiness Carrier Air Group FOUR (RCVG-4). On 20 December 1963 all Carrier Air Groups were redesignated as Carrier Air Wings and RCVG-4 became Readiness Carrier Air Wing FOUR (RCVW-4). RCVW-4 was disestablished on 1 June 1970 and its squadrons were placed under the control of the respective Type Wing for each squadron's aircraft. The squadrons of the disestablished RCVW-4 retained the AD tail code after their realignment to their Type Wings.
| Insignia | Squadron Designation | Squadron Lineage | Aircraft | Notes |
| | VF-101 (Grim Reapers) | VF-101: 1 May 1952 – 1 May 2012 (inactive 30 Sep 2005 – 1 May 2012) VFA-101: 1 May 2012 – 1 Jul 2019 (inactive 1 Jul 2019–present) | F4D Skyray F3H Demon F-4 Phantom II F-14 Tomcat | NAS Oceana VF FRS from Apr 1958 to deactivation Deactivated then later Reactivated and Redesignated VFA-101 |
| | VF-174 (Hellrazors) | VB-81: 1 Mar 1944-15 Nov 1946 VA-13A: 15 Nov 1946-2 Aug 1948 VA-134(1st): 2 Aug 1948-15 Feb 1950 VF-174: 15 Feb 1950 – 1 Jul 1966 VA-174(2nd): 1 Jul 1966 – 30 Jun 1988 | F8U/F-8 Crusader | NAS Cecil Field VF FRS from 1 May 1958 to redesignation Redesignated VA-174 1 Jul 1966 |
| | VA-174 (Hellrazors) | VB-81: 1 Mar 1944-15 Nov 1946 VA-13A: 15 Nov 1946-2 Aug 1948 VA-134(1st): 2 Aug 1948-15 Feb 1950 VF-174: 15 Feb 1950-1 Jul 1966 VA-174(2nd): 1 Jul 1966 – 30 Jun 1988 | A-7 Corsair II | NAS Cecil Field VA FRS from redesignation to disestablishment Disestablished 30 Jun 1988 |
| (1992) | VA-42 (Green Pawns) (Thunderbolts) - 1992 | VF-42(4th): 1 Sep 1950-1 Nov 1953 VA-42: 1 Nov 1953 – 30 Sep 1994 | AD/A-1 Skyraider A-6 Intruder | NAS Oceana FRS from 24 Oct 1958 to disestablishment Disestablished 30 Sep 1994 |
| | VA-43 (Challengers) | VF-74A: 1 May 1945-1 Aug 1945 VF-74(2nd): 1 Aug 1945-15 Nov 1946 VF-1B(3rd): 15 Nov 1946-1 Sep 1948 VF-21(2nd): 1 Sep 1948-1 Jul 1959 VA-43: 1 Jul 1959 – 1 Jun 1973 VF-43(5th): 1 Jun 1973 – 1 Jul 1994 | A4D/A-4 Skyhawk | NAS Oceana FRS from 1 Jul 1959 to redesignation Redesignated VF-43 1 Jun 1973 |
| | VA-44 (Hornets) | VF-44(2nd): 1 Sep 1950-1 Jan 1956 VA-44(2nd): 1 Jan 1956 – 1 May 1970 | AD/A-1 Skyraider A4D/A-4 Skyhawk | NAS Jacksonville NAS Cecil Field FRS from 1 Jun 1958 to disestablishment Disestablished 1 May 1970 |
| | VA-45 (Blackbirds) | VA-45(3rd): 15 Feb 1963 – 7 Feb 1985 VF-45(2nd): 7 Feb 1985 – 31 Mar 1996 | A-1 Skyraider | NAS Cecil Field FRS from Feb 1963 to retirement of the A-1 (Split out of VA-44 to continue A-1 training to allow VA-44 to conduct A-4 only training). Flew the A-4 as an adversary squadron after retirement of the A-1 until redesignation Redesignated VF-45 7 Feb 1985 |
| | VAH-3 RVAH-3 (Sea Dragons) | VAH-3: 14 Jun 1956 – 1 Jul 1964 RVAH-3: 1 Jul 1964 – 17 Aug 1979 | VAH-3: A3D/A-3 Skywarrior A3J/A-5 Vigilante RVAH-3: RA-5C Vigilante | NAS Sanford, FL NAS Albany, GA NAS Key West FRS from mid 1958 to disestablishment Distesablished 17 Aug 1979 |
| | RVAW-120 Grey Hawks | RVAW-120: 1 Jul 1967 – 1 May 1983 VAW-120: 1 May 1983 – present | E-1 Tracer E-2 Hawkeye | NAS Norfolk FRS from establishment to present Redesignated VAW-120 |

### Squadrons of former Readiness Carrier Air Group TWELVE (RCVG-12)/Readiness Carrier Air Wing TWELVE (RCVW-12)

On 1 April 1958 Carrier Air Group TWELVE (tail code NJ) was re-tasked as the Pacific Fleet's training air group and it was redesignated Readiness Carrier Air Group TWELVE (RCVG-12). On 20 December 1963 all Carrier Air Groups were redesignated as Carrier Air Wings and RCVG-12 became Readiness Carrier Air Wing TWELVE (RCVW-12). RCVW-12 was disestablished on 30 June 1970 and its squadrons were placed under the control of the respective Type Wing for each squadron's aircraft. The squadrons of the disestablished RCVW-12 retained the NJ tail code after their realignment to their Type Wings.
| Squadron Designation | Squadron Lineage | Aircraft | Notes |
| VF-121 (Pacemakers) | VF-781: 1950-4 Feb 1953 VF-121: 4 Feb 1953 – 30 Sep 1980 | F3H-2N Demon F11F-1 Tiger F-4 Phantom II | NAS North Island NAS Miramar FRS from Apr 1958 to disestablishment Disestablished 30 Sep 1980 |
| VA-122 (Flying Eagles) | VC-35(2nd): 25 May 1950-1 Jul 1956 VA(AW)-35: 1 Jul 1956-29 Jun 1959 VA-122: 29 Jun 1959 – 31 May 1991 | AD/A-1 Skyraider A-7 Corsair II | NAS Lemoore FRS from 29 Jun 1959 to disestablishment Disestablished 31 May 1991 |
| VAH-123 (Pros) | Heavy Attack Training Unit Pacific: 15 Jun 1957-29 Jun 1959 VAH-123: 29 Jun 1959 – 1 Feb 1971 | A3D/A-3 Skywarrior A-6 Intruder | NAS Whidbey Island FRS from 15 Jun 1957 to disestablishment Disestablished 1 Feb 1971 |
| VF-124(2nd) (Gunfighters) | VF-53(2nd): 16 Aug 1948-11 Apr 1958 VF-124(2nd): 11 Apr 1958 – 30 Sep 1994 | F8U/F-8 Crusader F-14 Tomcat | NAS Miramar FRS from 11 Apr 1958 to disestablishment Disestablished 30 Sep 1994 |
| VA-125(2nd) (Rough Raiders) | VA-26: 30 Jun 1956-11 Apr 1958 VA-125(2nd): 11 Apr 1958 – 1 Oct 1977 | A4D/A-4 Skyhawk A-7 Corsair II | NAS Lemoore FRS from 11 Apr 1958 to disestablishment Disestablished 1 Oct 1977 |
| VA-126 (Nulli Secondus) | VA-126: 6 Apr 1956 – 15 Oct 1965 VF-126: 15 Oct 1965 – 1 Apr 1994 | F9F-8T/TF-9J Cougar A4D/A-4 Skyhawk | NAS Miramar FRS from 6 Apr 1956 to redesignation Redesignated VF-126 15 Oct 1963 |
| VA-127 (Royal Blues) | VA-127: 15 Jun 1962 – 1 Mar 1987 VFA-127: 1 Mar 1987 – 23 Mar 1996 | F9F-8T/TF-9J Cougar TA-4 Skyhawk | NAS Lemoore FRS from 15 Jun 1962 to 1975 Redesignated VFA-127 1 Mar 1987 |
| VA-128 (Golden Intruders) | VA-128: 1 Sep 1967 – 29 Sep 1995 | A-6 Intruder | NAS Whidbey Island FRS from 1 Sep 1967 to disestablishment Disestablished Sep 1995 |
| RVAW-110 VAW-110 (Firebirds) | RVAW-110: 20 Apr 1967-May 1983 VAW-110: May 1983-1 Sep 1994 | E-1 Tracer E-2 Hawkeye | NAS Miramar FRS from 20 Apr 1967 to disestablishment Disestablished Sep 1994 |

### Squadrons of former Readiness Antisubmarine Carrier Air Group FIFTY (RCVSG-50)

On 30 June 1960 Readiness Antisubmarine Carrier Air Group FIFTY (tail code AR) was established as a training air group to support the Atlantic Fleet's newly establishing Antisubmarine Carrier Air Groups which were being paired with the Navy's Antisubmarine Aircraft Carriers (CVS). The CVSs were re-purposed WWII Essex class carriers to respond to the growing Soviet submarine threat. RCVSG-50 was disestablished in February 1971 and its squadrons were placed under the control of the respective Type Wing for each squadron's aircraft. The squadrons of the disestablished RCVSG-50 retained the AR tail code after their realignment to their Type Wings.
| Insignia | Squadron Designation | Squadron Lineage | Aircraft | Notes |
| | HS-1 (Sea Horses) | HS-1: 3 Oct 1951 – 30 Jun 1997 | HSS-1/SH-34 Seabat HSS-2/SH-3 Sea King SH-60F Seahawk | NAS Jacksonville FRS from 30 Sep 1960 to disestablishment Disestablished 30 Jun 1997 |
| | VS-30 (Diamond Cutters) | VS-801: 9 Apr 1951-4 Feb 1953 VS-30: 4 Feb 1953 – 20 Apr 2007 (inactive 20 Apr 2007–present) | S2F-1/S-2 Tracker | NAS Cecil Field FRS from Jun 1960 to Apr 1976 Deactivated 20 Apr 2007 (official) Deactivation ceremony was 9 Dec 2005 |

### Squadrons of former Readiness Antisubmarine Carrier Air Group FIFTY ONE (RCVSG-51)

On 30 June 1960 Readiness Antisubmarine Carrier Air Group FIFTY ONE (tail code RA) was established as a training air group to support the Pacific Fleet's newly establishing Antisubmarine Carrier Air Groups. It was disestablished 30 June 1970 and its squadrons were placed under the control of the respective Type Wing for each squadron's aircraft. The squadrons of the disestablished RCVSG-50 retained the RA tail code after their realignment to their Type Wings.
| Insignia | Squadron Designation | Squadron Lineage | Aircraft | Notes |
| | HS-10 (Task Masters) (Warhawks) - 1990s | HS-10: 1 July 1960 – 12 Jul 2012 (inactive 12 Jul 2012–present) | HSS-1/SH-34 Seabat HSS-2/SH-3 Sea King SH-60F Seahawk | NAS North Island FRS from 1 Jul 1960 to deactivation Deactivated 12 Jun 2012 |
| | VS-41 (Shamrocks) | VS-41: 30 June 1960 – 30 Sep 2006 (inactive 30 Sep 2006–present) | S2F-1/S-2 Tracker S-3 Viking | NAS North Island FRS from 30 Jun 1960 to deactivation Deactivated 30 Sep 2006 |

### Other Former U.S. Navy Fleet Replacement Squadrons

The Fleet Replacement Squadrons below were training squadrons for non-carrier based aircraft or were retasked, established or reactivated as Fleet Replacement Squadrons after the disestablishment of RCVW-4, RCVW-12, RCVSG-50 and RCVSG-51
| Squadron Designation | Squadron Lineage | Aircraft | Notes |
| VFA-101 (Grim Reapers) | VF-101: 1 May 1952 – 1 May 2012 (inactive 30 Sep 2005 – 1 May 2012) VFA-101: 1 May 2012 – 1 July 2019 (inactive 1 July 2019 – present) | F-35C Lightning II | Eglin Air Force Base, FL Established 1 May 1952 as VF-101, became an FRS in 1958. Deactivated on 30 Sep 2005 as a Tomcat FRS and reactivated as a F-35C FRS on 1 May 2012. Deactivated a second time (as an F-35C FRS) on 1 Jul 2019 |
| VF-171(2nd) (Aces) | VF-171(2nd): 8 Aug 1977 – 1 Jun 1984 | F-4 Phantom II | NAS Oceana VF FRS from Aug 1977 to disestablishment Disestablished 1 Jun 1984 (Split out of VF-101 to continue F-4 training when VF-101 began F-14 training) |
| VP-31(2nd) (Genies) (Black Lightnings) - 1971 | VP-31(2nd): 30 Jun 1960 – 1 Nov 1993 | P2V/P-2 Neptune P5M/P-5 Marlin R5D/C-54 Skymaster R7V/C-121 Constellation UF-1/U-16 Albatross P-3 Orion | NAS Moffett Field FRS from 30 Jun 1960 to disestablishment Disestablished 1 Nov 1993 |
| VAQ-130 (Zappers) | VAW-13: 1 Sep 1959-1 Oct 1968 VAQ-130: 1 Oct 1968–present | A-3 Skywarrior | NAS Alameda FRS from 1971 to 1974 Assumed A-3 FRS responsibilities from VAH-123 upon its disestablishment until VAQ-130's transition to the EA-6B Still exists, however not as an FRS |
| VAQ-33 (Nighthawks) (Firebirds) - 1970 | VC-33(2nd): 31 May 1949-2 Jul 1956 VA(AW)-33: 2 Jul 1956-30 Jan 1959 VAW-33: 30 Jan 1959-1 Feb 1968 VAQ-33: 1 Feb 1968 – 1 Oct 1993 | A-3 Skywarrior | NS Norfolk NAS Oceana NAS Key West FRS from 1977 to 1991 Distesablished 1 Oct 1993 |
| VS-27 (Sea Wolves) | VS-27: 22 Jan 1987 – 30 Sep 1994 | S-3A Viking | NAS Cecil Field FRS from 22 Jan 1987 to disestablishment Disestablished 30 Sep 1994 |
| HSL-30 (Neptune's Horsemen) | HU-4: 1 July 1960 – 4 July 1965 HC-4(1st): 4 July 1965-Mar 1972 HSL-30: Mar 1972-30 Sep 1993 | HH-2 Seasprite SH-2 Seasprite | NAS Norfolk FRS from Mar 1972 to disestablishment Disestablished 30 Sep 1993 |
| HSL-31 (Arch Angels) | HC-5(1st): 1 Sep 1967-Mar 1972 HSL-31: Mar 1972-31 July 1992 | HH-2 Seasprite SH-2 Seasprite | NAS North Island FRS from Mar 1972 to disestablishment Disestablished 31 Jul 1992 |
| HSL-40 Air Wolves | HSL-40: 4 Oct 1985 – 1 Nov 2009 HSM-40: 1 Nov 2009–present | SH-60B Seahawk | NS Mayport SH-60B FRS from 4 Oct 1985 to redesignation Redesignated HSM-40 |
| HSL-41 Sea Hawks | HSL-41: 21 Jan 1983 – 8 Dec 2005 HSM-41: 8 Dec 2005–present | SH-60B Seahawk | NAS North Island SH-60B FRS from 1 Jan 1983 to redesignation Redesignated HSM-41 |
| HM-12(1st) (Sea Dragons) | HM-12(1st): 1 Apr 1971 – 30 Sep 1994 | RH-53D Sea Stallion CH-53E Super Stallion, MH-53E Sea Dragon | NAS Norfolk FRS from Apr 1971 to disestablishment Disestablished 30 Sep 1994 |
| AWSTS | Airborne Mine Countermeasures Weapon Systems Training School (AWSTS): 1 Oct 1994 – 1 Oct 2015 HM-12(2nd): 1 Oct 2015–present | MH-53E Sea Dragon | NAS Norfolk A "FRS" from 1 Oct 1994 to redesignation Conducted classroom and simulator training for replacement aircrew after their on aircraft training at HMT-302 Redesignated HM-12(2nd) 1 Oct 2015 |
| HC-1 (Fleet Angels) | HU-1: 1 Apr 1948-4 Jul 1965 HC-1: 4 Jul 1965 – 29 Apr 1994 | UH-3 Sea King | NAS North Island H-3 FRS from Jun 1989 to Mar 1993 Disestablished 29 Apr 1994 |
| HC-2(2nd) (Fleet Angels) | HC-2(2nd): 1 Apr 1987 – 1 Jan 2006 HSC-2: 1 Jan 2006–present | UH-3 Sea King | NAS Norfolk H-3 FRS from 1997 to redesignation Redesignated HSC-2 |
| HC-3 (Packrats) | HC-3: 1 Sep 1967 – 1 Apr 2005 HSC-3: 1 Apr 2005–present | H-46 Sea Knight | NAS North Island H-46 FRS from Feb 1982 to redesignation Redesignated HSC-3 |
| HC-16 (Bullfrogs) | HCT-16: 1 Nov 1974-May 1977 HC-16: May 1977-1 Apr 1994 | H-46 Sea Knight H-1N Huey | NAS Pensacola FRS Jun 1977 to disestablishment Disestablished 1 Apr 1994 |

### Former U.S. Marine Corps Fleet Replacement Squadrons

| Squadron Designation | Aircraft | Notes |
| VMGRT-253 | KC-130 Hercules | MCAS Cherry Point FRS from 1 Oct 1986 to deactivation Deactivated 14 Sep 2006 |
| VMAQT-1 | EA-6B Prowler | MCAS Cherry Point FRS from 2013 to deactivation Deactivated Apr 2016 |
| HMMT-164 | CH-46 Sea Knight | MCAS Camp Pendleton FRS from Feb 1999 to redesignation Redesignated VMM-164 |
| HMMT-301 | | Redesignated HMT-301 |
| HMT-301 (Wind Talkers) | | Deactivated 3 Jun 2005 |
| HMMT-302 | | Redesignated HMT-302 |
| HMT-302 (Phoenix) | | Redesignated HMHT-302 in 2010 |