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|Helicopter Maritime Strike Squadron Four Six|
|Country||United States of America|
|Branch||United States Navy|
|Type||Navy Helicopter Squadron|
|Role||Anti-Submarine Warfare (ASW)
Anti-Surface Warfare (ASUW)
Search and Rescue (SAR)
Medical Evacuation (MEDEVAC)
Vertical Replenishment (VERTREP)
Naval Surface Fire Support (NSFS)
Communications Relay (COMREL)
|Part of||Helicopter Maritime Strike Wing, U.S. Atlantic Fleet.|
|Garrison/HQ||Naval Station Mayport|
|Motto(s)||Set the standard|
|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 Chris Richard, USN|
|Executive Officer||CDR Michael O'Neill, USN|
|Command Master Chief||CMDCM(SS/SW) MICHAEL KELLY, USN|
|Multirole helicopter||(LAMPS) MARK III MH-60R Seahawk|
Helicopter Maritime Strike Four Six (HSM-46), the "Grandmasters", are a United States Navy helicopter squadron based at Naval Station Mayport, Mayport, Florida. HSM-46 deploys aboard cruisers, destroyers, and aircraft carriers in independent operations or in support of strike groups. 
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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. Although the MH-60R is replacing all SH-60B as the newest and most technologically advance maritime patrol helicopter. With mission and flight avionic upgrades to include a dipping sonar and common glass cockpit.
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 MH-60R 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
- CDR MICHAEL O'NEILL, USN
Previous Commanding Officer(s):
CDR C. RICHARD, USN
CDR G.A DICKS, USN
CDR M.J. WEAVER, USN
CDR J.P. DUNN, USN
- CDR MANUEL PARDO, USN
Command Master Chief
- CMDCM(SS/SW) MICHAEL KELLY, USN