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Sonar Sweeper [Vanilla]

As Crazy Ivan lay awake listening to yet another "veteran captain" pinging away with active sonar as they traversed Europa's caverns, an idea took shape: a passive sonar sweep display was born out of that moment, and Crazy Ivan's desire to see the seas of Europa with sound rather than sight. It displays 360° and ranges from 0 to 9 999m. Ironically, the passive sonar display is quite noisy inside the sub. As one of Crazy Ivan's mentors used to say, "where we're going, we don't need eyes to see."