Helicopter Maritime Strike Squadron Seven Seven (HSM-77) "Saberhawks" is a United States Navy helicopter squadron based at Naval Air Facility, Atsugi, Japan. HSM-77 is attached to Carrier Air Wing Five and deploys aboard USS Ronald Reagan and air capable ships attached to Carrier Strike Group Five (CSG-5). The squadron was established as Helicopter Antisubmarine Squadron (Light) Forty Seven (HSL-47) on 25 September 1987 and was redesignated HSM-77 on 2 Apr 2009.