Pisces VI Submarine
Silent Propulsion for Marine Protected Areas
Near-silent
propulsion
Access to
sensitive environments
Powerful and maneuverable
performance
INTRODUCTION
Innovative Thrusters for Noise-Free Underwater Operation
Operating in marine protected areas requires a unique balance of performance and environmental responsibility. For the Pisces VI Submarine, silence was not just a preference—it was a necessity. Traditional thrusters, while powerful, generated disruptive noise through cavitation, limiting the submarine’s ability to explore fragile ecosystems.
Faced with this challenge, Pisces VI sought a solution that combined powerful propulsion, precision maneuverability, and near-silent operation to meet the strict requirements of sensitive underwater environments. By upgrading to Copenhagen Subsea’s rim-driven electric thrusters, Pisces VI achieved exceptional results: virtually noise-free performance that enables them to operate responsibly without disturbing marine life.
This is their story.
The challenge
Balancing Power and Marine Preservation
The Pisces VI Submarine is designed for deep-sea exploration, research, and operations in some of the world’s most sensitive marine environments. One of their primary goals was to operate in marine protected areas where silence is critical to avoid disturbing marine life.
Traditional thrusters, however, create noise through cavitation, which occurs when the pressure differential on the outer part of the blade causes air bubbles to form and collapse. This noise not only disrupts marine ecosystems but also limits access to delicate environments. For Pisces VI, finding a solution that could deliver powerful performance, excellent maneuverability, and—most importantly—near-silent operation was essential.
The challenge was clear: How could Pisces VI maintain high performance while achieving virtually noise-free propulsion to meet their operational and environmental goals?
The solution
Pisces VI Embraces Silent Thruster Technology
Pisces VI upgraded to Copenhagen Subsea’s electric thrusters, powered by rim-driven technology. Unlike conventional thrusters, the rim-driven design eliminates the root cause of noise—cavitation—by preventing the pressure differential on the blade’s outer edge from equalizing. The result is a virtually silent thruster that operates with exceptional efficiency and precision.
The choice was simple for Pisces VI: Copenhagen Subsea’s thrusters delivered the ideal balance of power, maneuverability, and silence. This advanced technology enabled the submarine to perform operations in marine protected areas without disturbing the delicate underwater environment.
As Sonia Pérez, Business Development Manager, shared:
“Our Copenhagen Subsea thrusters have been upgraded, and we can’t be happier with them! They have proven to be very powerful, maneuverable, and extremely silent.”
The results
Noise-Free, Powerful Performance in Protected Waters
With Copenhagen Subsea’s electric thrusters, Pisces VI has achieved its goal of silent operation, making it possible to dive in marine protected areas while preserving the surrounding ecosystem.
- Near-silent propulsion: Virtually no noise, eliminating disruption to marine life.
- Access to sensitive environments: The ability to explore and conduct research in protected areas where traditional thrusters would not be permitted.
- Powerful and maneuverable performance: Achieving high operational efficiency without sacrificing control.
Copenhagen Subsea’s innovative thrusters have empowered Pisces VI to explore new frontiers with confidence—silently, responsibly, and effectively.