John T. Metcalf Jr., 87, a retired Navy commander who taught engineering at the University of Maryland and the U.S. Naval Academy in Annapolis, died Jan. 13 of atrial fibrillation at his home in Chevy Chase.

His daughter, Alida Metcalf, confirmed the death.

Cmdr. Metcalf, a veteran of the Korean War, served in the Navy for 28 years before retiring in 1971.

Soon after his military retirement, he joined the staff of the University of Maryland as an assistant professor of engineering. From 1979 until his retirement in 1994, he was an associate professor of engineering at his alma mater, the Naval Academy, and received an award for his teaching.

John Trumbull Metcalf Jr. was a native of Burlington, Vt., and a 1949 graduate of the Naval Academy. He received a master’s degree in engineering and naval architecture from the Massachusetts Institute of Technology in 1957 and a doctorate in engineering from Catholic University in 1974.

He was a member of the Chevy Chase Presbyterian Church.

Survivors include his wife of 63 years, Helen Waterman Metcalf of Chevy Chase; four children, Mary Clare Wilkinson of New York City, Alida Metcalf of Houston, William Metcalf of Norfolk, Conn., and Michael Metcalf of Silver City, N.M.; and seven grandchildren.

— Megan McDonough