Center for Surface Combat Systems
Captain Frank X. Castellano
U. S. Navy
Commanding Officer
Center for Surface Combat Systems

Commanding Officer

Captain Frank Castellano graduated from the United States Naval Academy in 1990 earning a Bachelor of Science in History. He graduated from the Naval Postgraduate School earning a Master of Science in Systems Technology (Joint Command, Control, Communications, Computers, and Intelligence) and the United States Naval War College earning a Master of Arts in National Security and Strategic Studies.

Castellano’s sea duty assignments include OI Division Officer, Auxiliaries Officer, and Communications Officer, USS Anzio (CG 68); Operations Officer, USS Cole (DDG 67); Commanding Officer, USS Chinook (PC 9); Executive Officer, USS Donald Cook (DDG 75); Commanding Officer, USS Bainbridge (DDG 96); Executive Officer, USS Vella Gulf (CG 72); Commanding Officer, USS Vella Gulf (CG 72); and most recently, Commanding Officer, USS Anzio (CG 68).

While in command of Bainbridge, his ship and crew earned recognition worldwide for their role in the successful rescue of M/V Maersk Alabama and her master, Capt. Richard Phillips, from Somali pirates.

Ashore, he served as an Associate Fellow to the Chief of Naval Operations Strategic Studies Group XVI; Surface Warfare Lieutenant Commander / Commander Assignments Officer, Navy Personnel Command (PERS 41); and Plans Group Chief, Joint Enabling Capabilities Command (JECC) Joint Planning Support Element (JPSE). He reported as Commanding Officer, Center for Surface Combat Systems (CSCS) in December 2016.

Castellano’s personal awards include the Legion of Merit, Defense Meritorious Service Medal, Meritorious Service Medal (four awards), Joint Service Commendation Medal, Navy and Marine Corps Commendation Medal (three awards), and various unit, campaign, and service awards.


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Cmdr. Christopher S. Simmons
Executive Officer
Center for Surface Combat Systems

Executive Officer

Cmdr. Simmons, a native of Tyler, Texas, was commissioned in 1996 from the NROTC Program at Texas A&M University. He graduated from the University of Houston in 2003 with a Master of Science degree in Environmental Sciences and the Naval War College in 2012 with a Master of Arts in National Security.

After the completion of Surface Warfare Officer School, his initial sea assignment was aboard USS Spruance (DD 963) where he served in the engineering department as the auxiliaries officer and damage control assistant. During his tour, he completed a deployment to the Black Sea and Mediterranean Ocean, while participating in numerous joint exercises. Cmdr. Simmons was then assigned as navigator and main propulsion assistant aboard USS Gettysburg (CG 64). During his tour, he completed an Arabian Gulf and Mediterranean Ocean deployment, serving on the air warfare command ship for Operation Desert Fox and strike coordination platform for operations in Iraq and the Federal Republic of Yugoslavia.

Simmons completed department head school as the distinguished engineering graduate and was assigned as chief engineer aboard USS Ramage (DDG 61). He participated in the ship’s first Arabian Gulf deployment and conducted numerous multinational exercises. Finally, he was selected as executive officer for Mine Countermeasures (MCM) Crew Implicit where he completed a deployment in the Arabian Gulf and successfully performed a hull transfer for four different MCM’s. During his tour, the crew was awarded the CNO Surface Ship Safety Award for small combatants.

His initial shore assignment was officer in charge (OIC) of the Merchant Marine and NROTC programs at Texas A&M in Galveston, Texas. Other shore tours include deputy director for future operations in Combined Joint Task Force – Horn of Africa; XO Special Mission as the OIC of High Speed Vessel (HSV) 2 Swift Blue crew; and executive officer for the AEGIS Training and Readiness Center. Simmons reported as executive officer of the Center for Surface Combat Systems (CSCS) in December 2014.

Simmons’ personal awards include the Defense Meritorious Service Medal, Meritorious Service Medal, Navy and Marine Corps Commendation Medal (three awards), Navy and Marine Corps Achievement Medal (four awards), and numerous individual and unit awards.


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CMDCM(SW/EXW/FMF) Adam C. Longsdorf
Command Master Chief
Center for Surface Combat Systems

Command Master Chief

Command Master Chief Adam Longsdorf is a native of Pittsburgh, Pa. He graduated from North Hills High School and immediately entered recruit training at Recruit Training Command Great Lakes, Ill.

His military education courses include Gunner’s Mate “A” School, MK26 Technician “C” School, Small Arms Marksmanship Instructor, Marine Corps School of Infantry, basic and advanced Riverine Force Small Craft Maritime Interdiction Operations, Recruit Division Commander, Senior Enlisted Academy (Class 167 / Purple) and Command Master Chief / Chief of the Boat Leadership course in Newport, R.I. He graduated from Roger Williams University in May 2012 with a bachelor’s degree in Technology Leadership and Management.

CMDCM Longsdorf’s command assignments include Command Master Chief of USS Momsen (DDG 92) and Mine Countermeasure (MCM) Crew Persistent, and Command Senior Chief of MCM Crew Leader. Other assignments include the Naval Academy Preparatory School, Riverine Squadron One, Southeast Regional Maintenance Center Pascagoula, Naval Air Station Keflavik, Iceland, and the USS Yorktown (CG 48).

CMDCM Longsdorf has deployed in support of Counter Drug Operations, U.S. 5th and 7th Fleet Operations, United States / South American Allied Training, and completed two combat tours in support of Operation Iraqi Freedom, Al Anbar Province, Iraq.

He reported as Command Master Chief for the Center for Surface Combat Systems (CSCS) in November 2016.

CMDCM Longsdorf is qualified to wear the Surface Warfare Specialist, Expeditionary Warfare Specialist, Fleet Marine Force Warfare, and Small Craft insignia. His personal awards include the Meritorious Service Medal, Navy and Marine Corps Commendation Medal (four awards), Navy and Marine Corps Achievement Medal (five awards), and various personal, unit, and campaign medals and awards.


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