ISMS (Figure 1) is comprised of a complex system of acoustic arrays suspended in 1200 feet of water. A network of underwater electrical and fiber optic cables connect these arrays to shore approximately 2. Navy uses underwater cables in a wide variety of systems, not only for subsea communication and power transmission, but also for precise placement and orientation of acoustic sensors suspended high above the seafloor. Every situation has different design parameters determined by project. More than 900 kilometers of fiber-optic cables off the Oregon coast make it possible to monitor volcanic and hydrothermal activity, methane seeps, earthquakes, and myriad ocean processes in coastal and blue water environments. Coastal communities with limited access to fresh water are now using desalinated seawater for drinking water. Naval Sea Systems Command in Washington, DC ordered two TB-33 fiber optic thin-line towed-array submarine sonar systems from manufacturer Chesapeake Science Corp. in Millersville, MD, under a $15. 3 million cost-plus-fixed-fee, firm-fixed-price contract for the continued development of the. NGCON MIL-PRF-62466 is a new rear-release fiber optic system designed for naval and airframe applications.