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Helicopter Maritime Strike Squadron Four Six
HSM 46 Logo.png
HSM-46 Insignia
Country United States
Branch United States Navy Seal United States Navy
Type Navy Helicopter Squadron
Role Anti-Submarine Warfare (ASW)
Anti-Surface Warfare (ASUW)
Search and Rescue (SAR)
Size 300
Part of Helicopter Maritime Strike Wing, U.S. Atlantic Fleet.
Garrison/HQ Naval Station Mayport
Nickname(s) Grandmasters
Motto(s) Honor, Courage, Commitment
Mascot(s) Knight (chess piece)
Anniversaries Established at Mayport, FL, on April 7, 1988
Engagements Operation Enduring Freedom
Operation Iraqi Freedom
Global War on Terror
Commanding Officer CDR Michael Weaver, USN
Ceremonial chief CDR Grahme A. Dicks, USN
Command Master Chief CMDCM Jeffrey P. Owejan
Aircraft flown
Multirole helicopter (LAMPS) MARK III SH-60B Seahawk

Helicopter Maritime Strike Four Six (HSM-46), the "Grandmasters", are a United States Navy helicopter squadron based at Naval Air Station Jacksonville, Jacksonville, Florida. HSM-46 deploys aboard cruisers, destroyers, frigates, and aircraft carriers in support of a carrier strike group.[1]


The mission of HSM-46 is to train and support combat-ready detachments for assignment to LAMPS Mk III capable ships of the U.S. Atlantic Fleet.

The LAMPS program is designed to combine both ship and helicopter weapons systems for the most effective mission performance. The helicopter mission systems are totally integrated into the world’s most technologically advanced ships, thereby greatly extending the combat horizon of the ship. The combined systems provide for earlier warning of surface contacts and longer range prosecution of subsurface contacts. In addition to the primary missions of Under Sea Warfare (USW) and Surface Warfare (SUW), the LAMPS MK III helicopter’s missions include Search and Rescue, Vertical Replenishment, Medical Evacuation, and Communications Relay. The Light Airborne Multi-Purpose System (LAMPS) MARK III SH-60B SEAHAWK weapons system that the men and women of HSM-46 operate was introduced to the fleet in 1984 and continues to be the most capable and advanced multi-mission airborne platform in the world.

Established at Mayport, FL, on April 7, 1988, HSM-46 currently deploys ten detachments aboard Atlantic Fleet ships. A detachment normally consists of one or two aircraft, five to six pilots, two to three sensor operators, a maintenance chief, and eight to twelve maintenance personnel. A typical “Det” deploys with its assigned ship for six months, with several shorter work-up cruises prior to the long deployment.

Often compared to a game of chess, the SUW and USW missions are pursuits in subtlety and finesse requiring consummate strategic planning and tactical thought. “GRANDMASTER” is a title bestowed on those who have achieved international standing in chess through tactical expertise and demonstrated competence. The professionals of HSM-46 are dedicated to those same ideals and possess the same commitment to excellence defining the title of GRANDMASTER, hence the squadron’s insignia and nickname.

The versatile knight chess piece, with its ability to execute moves in multiple dimensions, is symbolic of the tactical versatility of the SH-60B Seahawk helicopter and aircrew to execute multiple missions. The eight-point star on the knight's shield represents the eight points of the compass and embodies HSM-46's ability to successfully execute missions anywhere in the world. The determination evident on the knight's face is representative of the determination, enthusiasm and motivation of every GRANDMASTER squadron member and accurately depicts our warrior spirit.

The Squadron is directly responsible to Commander, Helicopter Maritime Strike Wing, U.S. Atlantic Fleet.

Transition from HSL-46

HSM-46 was established at Naval Station Mayport, when the squadron was re-designated HSM-46 from their previous designation of Helicopter Anti-Submarine Squadron Light Four Six (HSL-46).

Commanding Officer



Previous Commanding Officer(s):


Command Master Chief

  • CMDCM(AW/SW) Jeffrey P. Owejan, USN

CMDCM Jeffrey P. Owejan, USN.jpg

See also


External links

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