Misea Marine Equipment
Marine Contra-rotating Propeller Azimuth Thruster
Azimuth thruster with coaxial contra-rotating propellers and 360° steering, electric or hydraulic drive, for ferries, offshore vessels, DP ships and shallow-draft transport vessels.
Description
The Marine Contra-rotating Propeller Azimuth Thruster from Misea Marine combines contra-rotating propeller (CRP) technology with full 360° azimuth steering in a single pod unit, replacing a conventional propeller and rudder arrangement.
Design
- Two coaxial propellers rotating in opposite directions at matched speeds
- Precision gear transmission driving both propellers
- Vertical azimuth mechanism for continuous 360° rotation
- Electric or hydraulic drive unit
- Sealed, streamlined pod isolating the mechanism from seawater
How it works
The rear propeller recovers the swirl energy left by the front propeller and converts it into additional thrust, while the opposite rotation cancels out propeller torque. The whole unit rotates to direct thrust in any direction.
Key features
- Manufacturer states 12–18% higher propulsion efficiency than a single-propeller azimuth thruster
- Balanced torque reduces vessel deflection and sideslip
- Load shared between two propellers lowers blade stress, vibration and noise
- Smaller propeller diameter suits shallow-water operation
- Enables in-situ turning, transverse movement and precise station keeping
Applications
Passenger ferries, offshore engineering vessels, dynamic positioning ships and shallow-draft transport vessels.
More from Misea Marine
- Misea Marine Azimuth Thruster
- Misea Marine Azimuth Thruster with Tube
- Misea Marine Barge Azimuth Thruster
- Misea Marine Bow Thruster
- Misea Marine Controllable Pitch Propeller (CPP) Bow Tunnel Thruster
- Misea Marine Deck Combination Azimuth Thruster
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- Misea Marine Diesel Engine Driven Tunnel Thruster
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- Misea Marine Hydraulic Azimuth Thruster
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