HMM-365

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Branch

U.S. Marine Corps

Members

About HMM-365

Marine Medium Helicopter Squadron 365 (HMM-365), known as the "Blue Knights," was activated on July 1, 1961. Initially flying the Sikorsky H-34, the unit later transitioned to the CH-46 Sea Knight, supporting Marine Corps operations with assault support and troop transport missions. HMM-365 distinguished itself during the Vietnam War and later participated in numerous operations, including peacekeeping and humanitarian missions worldwide. In 2008, the squadron was redesignated as VMM-365 with the introduction of the MV-22B Osprey tiltrotor aircraft, continuing its legacy of excellence in expeditionary aviation.

Unit Members

Dale Saunders

U.S. Marine Corps

HMM-365View Profile

John Sisson

U.S. Marine Corps

HMM-365View Profile

Photos

U.S. Marine Corps • 1976

About HMM-365

About this Unit

Historical Facts

• Activation and Nickname: Marine Medium Helicopter Squadron 365 (HMM-365), known as the "Blue Knights," was activated on July 1, 1952. • Early Aircraft: The squadron initially operated the Sikorsky HRS-1, one of the earliest helicopters in Marine Corps service. • Pioneering Vertical Assaults: HMM-365 helped pioneer the concept of vertical envelopment and helicopter-borne assault tactics in the Marine Corps. • Dominican Republic Intervention: The unit participated in Operation Power Pack in 1965, providing crucial helicopter support during the U.S. intervention in the Dominican Republic. • Vietnam War Service: HMM-365 deployed to Vietnam multiple times, supporting combat operations, medevac missions, and troop insertions/extractions. • Aircraft Evolution: Over its history, the squadron flew several helicopters, including the CH-34 Seahorse, CH-46 Sea Knight, and later, the MV-22 Osprey (as VMM-365). • Humanitarian Missions: HMM-365 has been involved in humanitarian missions, such as disaster relief after Hurricane David in the Caribbean in 1979. • Operation Desert Storm: The squadron provided helicopter support during Operations Desert Shield and Desert Storm in 1990-1991. • Global War on Terror: As VMM-365, the unit deployed to Iraq and Afghanistan, supporting combat operations and logistics. • Legacy and Honors: The "Blue Knights" have received numerous awards, including multiple Presidential Unit Citations and Navy Unit Commendations for their service and valor.