Meet Our Naval Staff


Naval Science Instructors

Chief Warrant Officer 2 Joseph Kostelnik

Chief Warrant Officer Kostelnik is a native of Corpus Christi, Texas. He enlisted in the Navy in 1973 and served for 24 years in the Navy's Submarine force, completing 20 Strategic Deterrent submarine patrols. He earned a naval commission through the LDO/Chief Warrant Officer program and completed tours on board the USS Simon Lake AS-33 in La Maddellena, Sardinia and at Naval Ordnance Test Unit, Cape Canaveral, Florida.

CWO2 Kostelnik retired from active naval service in 1997 and spent 18 years in Real Estate Sales and Marketing before joining the NCHS faculty in October of 2012. He is beginning his sixth year as the Senior Naval Science Instructor.

CWO2 Kostelnik is a graduate of Valdosta State University in Valdosta, GA, and he is completing his requirements in the Master of Arts in Teaching, Secondary Education (Social Studies) program at the Citadel Graduate College.  He has been married for 35 years to the former Theresa Pace of Charleston, SC. They have two children and reside in West Ashley.

Bio coming soon.........