HBK Self-Noise Monitoring Protects Type 26 Frigate

Hottinger Brüel & Kjær’s (HBK's) PULSE system helps BAE Systems’ Type 26 Frigate maintain acoustic stealth, giving crews real-time control over hull vibration and noise Attitude and Heading Reference Systems (AHRS) / Feature Article by Hottinger Brüel & Kjær (HBK)

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HBK Self-Noise Monitoring Protects Type 26 Frigate
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Hottinger Brüel & Kjær (HBK) is playing a pivotal role in ensuring the acoustic stealth of BAE Systems’ new Type 26 Frigate, a cutting-edge warship being developed in partnership with the UK Ministry of Defence (MoD).

To maintain its tactical advantage in anti-submarine warfare (ASW), the Type 26 relies on HBK’s PULSE™ scalable platform for self-noise monitoring, giving crews real-time insight into the ship’s acoustic signature.

The Type 26 Frigate, designed to replace the Royal Navy’s Type 23 ASW frigates, will serve for at least 25 years, forming the backbone of the fleet well into the 2060s. With a top speed exceeding 26 knots, a range over 7,000 nautical miles on electric-motor drive, and a displacement of 6,900 tonnes, the vessel accommodates 208 crew members and 157 core personnel.

Acoustic stealth is critical in protecting both the ship and the aircraft carriers it escorts. HBK’s self-noise monitoring system continuously tracks vibration from machinery, hydrodynamic flow, and propeller cavitation using a network of sensors integrated into the hull. This provides the crew with instant analysis of the radiated sound signature, allowing precise control of noise sources and ensuring the Type 26 remains virtually undetectable to adversaries.

By combining naval engineering with advanced monitoring technology, BAE Systems and HBK are setting a new standard in maritime acoustic discretion.

Find out more on the HBK website.

Posted by Joseph Macey Joseph Macey is a Content Specialist at Defense Advancement, where he has focused on emerging defense technologies since joining in 2022. His expertise spans tactical UAS, rugged computing, and Satellite Communication Systems. After graduating in Journalism from Falmouth University, Joseph began his career in 2019 as a local reporter. His journalism background enhances both his reporting and interview skills, enabling him to provide insightful, authoritative analysis of the latest trends shaping the defense industry. Connect
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