AN/BPS-16

AN/BPS-16. The AN/BPS-16 was an X band surface search and navigation radar system developed for the United States Navy during the Cold War. Primarily installed on nuclear submarines, including the ''George Washington''-class and ''Ethan Allen''-class ballistic missile submarines, it provided critical surface situational awareness. The system represented a significant advancement in submarine radar technology during its era, offering improved performance for safe navigation and surface contact tracking.

Overview

The AN/BPS-16 was a key component of the electronic suite on several classes of United States Navy strategic deterrent platforms. Its primary role was to enable submerged submarines to safely approach the surface, perform periscope-depth navigation, and monitor surface traffic before fully surfacing. This capability was vital for the operational patterns of Fleet Ballistic Missile submarines, which required precise positioning for communications and missile launch protocols. The radar's design emphasized reliability and clarity in the challenging marine environment of the Atlantic Ocean and Pacific Ocean.

Development and Design

Development of the AN/BPS-16 was led by General Electric as part of a broader post-World War II effort to modernize the U.S. Navy's submarine fleet with new electronic systems. The design drew upon lessons from earlier systems like the AN/BPS-9 and was influenced by the evolving threat environment of the Cold War. Engineers focused on creating a system with a high-power output and a stabilized antenna to compensate for the roll and pitch of a submarine at sea. Integration with other onboard systems, such as the Submarine Integrated Control System, was a critical design consideration to streamline operations within the attack center.

Technical Specifications

Operating in the X band (approximately 8-12 GHz), the AN/BPS-16 utilized a magnetron transmitter capable of a peak power output around 200 kilowatts. Its antenna system featured a parabolic reflector and was housed within a distinctive radome, often mounted on an extendable mast. The system offered several pulse repetition frequencies and pulse widths, allowing operators to optimize for either long-range search or high-resolution navigation. Typical detection range against a destroyer-sized contact was approximately 25 nautical miles, with bearing accuracy within a few degrees.

Operational History

Entering service in the early 1960s, the AN/BPS-16 was deployed aboard numerous SSBNs during pivotal periods such as the Cuban Missile Crisis and throughout the height of strategic patrols under programs like Operation Dominic. It provided essential support during transits through heavily trafficked areas like the GIUK gap and during sensitive intelligence collection missions. The system remained in frontline use for over two decades, seeing service during events like the Vietnam War where submarines performed reconnaissance duties. It was eventually supplanted by more advanced systems such as the AN/BPS-15 in later ''Los Angeles''-class submarines.

Variants

A primary variant was the **AN/BPS-16A**, which incorporated solid-state component upgrades and improved reliability for extended patrols. Some systems were also adapted for use on certain auxiliary ships and experimental platforms managed by organizations like the Naval Research Laboratory. While no direct export version was widely marketed, the technological concepts influenced subsequent radar designs in other navies, including those of the Royal Navy and the Japan Maritime Self-Defense Force.

Category:Naval radars of the United States Category:Cold War naval equipment of the United States Category:Submarine equipment Category:General Electric