HMT-301

**Marine Helicopter Training Squadron 301 (HMT-301)** was a United States Marine Corps helicopter training squadron activated in 1966 at Marine Corps Air Station Tustin, California. The unit’s primary mission was to provide advanced training to Marine pilots and crew in the operation of the Sikorsky CH-53 Sea Stallion and CH-46 Sea Knight helicopters. HMT-301 played a vital role in preparing aircrews for combat and operational deployments during the Vietnam War and throughout the 1970s and 1980s. The squadron was deactivated in 1990 as part of a broader restructuring of Marine Corps aviation training assets.