April 7, 2026
Simon Sparacca
Advancing propulsion performance for next-generation tug operations
The tug boat sector is entering a new phase of technical and operational transformation.
As environmental regulations tighten and operational expectations increase, engine selection is no longer driven by power alone. Operators are now prioritising solutions that combine reliability, efficiency, and long-term adaptability.
The International Tug & Salvage Convention 2026, held in Gothenburg from May 19 to 21, brings together the global tug, towage and salvage community to address these evolving challenges. Recognised as a key industry event, ITS provides a platform to explore advancements in propulsion systems, onboard power, and vessel performance optimisation.
A more demanding operating environment
Tug operations are among the most demanding in the marine industry.
From harbour assistance to escort operations and offshore towing, vessels operate under continuous load and must respond instantly to dynamic conditions. Any loss of power or delay in response can directly impact safety and operational performance.
Operators are facing increasing pressure to:
- – Improve fuel efficiency and reduce operating costs
- – Comply with evolving emissions standards
- – Ensure maximum uptime and propulsion availability
- – Maintain performance under highly variable load conditions
In this environment, propulsion systems must deliver instant responsiveness, mechanical robustness, and long-term reliability.
From engine performance to towing performance
The industry is moving beyond traditional engine specifications.
For tug operators, what matters is not just power output, but the ability to deliver consistent performance in real towing conditions:
- – Rapid load acceptance during manoeuvres
- – Strong torque reserve to handle sudden load variations
- – Stability under extreme propeller load fluctuations
- – Continuous-duty capability over long operational cycles
This shift is redefining how propulsion systems are evaluated — with a clear focus on operational performance and reliability at sea.
The growing role of diesel-electric propulsion in tug operations
Alongside conventional propulsion systems, diesel-electric configurations are gaining momentum in the tug sector, particularly for operations requiring high flexibility and optimised energy management.
By decoupling engine operation from propeller demand, diesel-electric systems enable more efficient load management, improved fuel consumption, and enhanced emissions performance across highly variable duty cycles.
Leveraging its robust engine platforms and expertise in marine power generation, Baudouin supports these configurations through high-performance gensets designed to ensure consistent power availability and seamless integration within hybrid propulsion architectures.
A propulsion range designed for tug operations
At ITS 2026, Baudouin presents a propulsion portfolio engineered to meet the full spectrum of tug requirements, from compact configurations to high-power escort and offshore applications.
These engines are specifically designed to address the real constraints of towing operations, combining:
- – High transient load acceptance for rapid power delivery during manoeuvres
- – Strong torque reserve to maintain propulsion stability under sudden load variations
- – Robust crankshaft and bearing architecture designed for extreme propeller loads
- – PTO/PTI capability for integration with winches and firefighting systems
- – Redundant protection systems ensuring propulsion availability in critical operations
- – Class-approved heavy-duty ratings suitable for continuous towing cycles
- – Low vibration levels improving drivetrain durability and crew comfort
- – Flexible integration with ASD and Z-drive propulsion systems
6M33.3 – Compact power with real operational capability
The 6M33.3 offers a compact yet capable propulsion solution for tug operations requiring responsiveness and reliability.
With its inline 6-cylinder configuration and high power density, it delivers up to 670 kW (911 HP), making it well suited for smaller harbour tugs and support operations. Its design ensures stable performance under variable load conditions while maintaining ease of integration and maintenance.
16M33.3 – Power and endurance for heavy-duty tug operations
The 16M33.3 is designed for intensive towing applications where continuous load and high torque are critical.
Its V16 architecture delivers strong propulsion performance and stability under heavy-duty cycles, making it ideal for harbour tugs, escort operations, and offshore towing. Engineered for endurance, it supports long operating hours with consistent reliability.
12M55 – High performance with optimised efficiency
The 12M55 combines high power output with optimised fuel efficiency and advanced engine management.
It enables operators to meet increasing environmental requirements while maintaining strong towing performance. This makes it particularly suited for modern tug fleets and newbuild projects where efficiency and long-term cost control are key priorities.
Marine gensets: ensuring onboard power continuity
In tug operations, propulsion must be supported by reliable onboard power systems.
Baudouin’s marine generator sets, are specifically engineered for auxiliary power applications.
Although based on the same platforms as propulsion engines, they are optimised to deliver:
- Stable and continuous power for onboard systems
- Reliable performance under dynamic load conditions
- Simplified maintenance and accessibility
- Reduced lifecycle costs
Ensuring full energy availability onboard is essential for safe and efficient tug operations.
ITS 2026: aligning technology with operational reality
ITS provides a unique opportunity to engage directly with tug operators, captains, and technical experts.
These discussions highlight key priorities across the sector:
- Maintaining propulsion availability under all conditions
- Reducing maintenance constraints and downtime
- Improving fuel efficiency without compromising performance
- Selecting systems that remain reliable over time
These insights continue to shape propulsion solutions designed for real operational environments.
Meet Baudouin at ITS 2026
Baudouin will be present at ITS 2026 to showcase its propulsion and power solutions dedicated to tug operations.
📍 Swedish Exhibition & Congress Centre, Gothia Towers
📅 19–21 May 2026
📌 Stand 2004
Our teams will be available to discuss your projects, from new tug designs to fleet optimisation strategies.
