The nuclear powered aircraft carrier U.S.S. Nimitz (CVN 68) was portrayed in this movie by the museum ship U.S.S. Yorktown (ex CV 10) moored in Charleston Harbor, Charleston, South Carolina. The T-2 Buckeye jet trainer which is being towed across the deck during one of Michael Boyle's (Scott Glenn) reports is one of the Yorktown Museum's exhibits.
The stock footage of the "Omani gunboat" exploding was of HMS Antelope, sunk in the Falklands on May 24th, 1982.