Unlocking New Levels of Multibeam Performance with Norwegian Subsea MRU

Motion Reference Units (MRUs) play a crucial role in bathymetric survey technology, providing precise motion compensation data essential for reliable and accurate seafloor mapping. For experienced mariners like Captain Sid Hynes, who explores Newfoundland’s shipwreck-rich waters, the Norwegian Subsea MRU has revolutionized multibeam performance, delivering exceptional results even in challenging conditions.

The Challenge

Captain Sid Hynes, along with his son Matthew, has dedicated countless hours to mapping shipwrecks using multibeam echosounders in the unpredictable environment of the Grand Banks. Despite using a multibeam system from WASSP, Sid faced challenges in locating and identifying submerged targets, especially wooden shipwrecks that had deteriorated over time. The three-directional swells and constant boat movement further complicated data collection, affecting the accuracy of their surveys.

“Heave is the key,” Sid explained. “Proper heave compensation is crucial to getting a clear picture of the seafloor, especially in challenging conditions.” The standard motion sensor in their multibeam system struggled with this task, prompting Sid to seek an alternative solution.

The Solution

After discovering the Norwegian Subsea MRU 6000 and consulting with Norwegian Subsea and WASSP, Sid integrated the MRU into their multibeam setup. The MRU offered unparalleled motion compensation capabilities, particularly in the challenging conditions of the Grand Banks. Sid and Matthew, with their technical expertise, managed the integration process themselves, noting the MRU’s straightforward setup and consistent performance.

With the Norwegian Subsea MRU, Sid’s multibeam echosounder provided highly detailed and precise data, allowing them to identify various shipwreck remnants with unprecedented accuracy. The MRU’s superior heave, pitch, and roll compensation enabled Sid to confidently map the seafloor even in swells exceeding 20 feet, transforming their shipwreck exploration efforts.

The Impact

Using the Norwegian Subsea MRU, Sid identified numerous shipwrecks with remarkable precision, including some located miles away from their suspected positions. The MRU significantly improved data quality and consistency compared to their previous equipment, enhancing their ability to detect wrecks in extreme conditions.

About Master Mariner Sid Hynes: Sid, a master mariner with extensive experience in running DP-equipped vessels worldwide, has a deep passion for exploring Newfoundland’s maritime history. Alongside his son Mathew, Sid has conducted numerous expeditions to uncover shipwrecks in Newfoundland’s waters, utilizing advanced technology to enhance their discoveries.

Overall, the collaboration between Norwegian Subsea, WASSP, and Sid Hynes has not only improved shipwreck detection capabilities but also paved the way for enhanced multibeam data precision and reliability in the subsea sector. Through innovative solutions like the Norwegian Subsea MRU, underwater exploration and surveying are set to become more cost-effective and accurate, benefitting maritime enthusiasts and industry professionals alike.