Marine Engineering Services


Engineering-Led Integration for Vessels


Thompson Marine’s in-house engineering team designs, integrates, and commissions complete CAT® power and Berg Propulsion systems for vessels. The team manages the entire project lifecycle, from initial analysis and system specification through installation, sea trial support, and commissioning.

Complete System Packaging and Integration

Thompson Marine engineers complete, installation-ready packages that go beyond engines and thrusters. Packages can include transmissions, ancillary items, and custom piping, documented with wiring schematics and mechanical installation drawings specific to the installation.

Mechanical and Electrical Integration

The primary focus of Thompson Marine’s engineering work is integrating complex power and propulsion systems into the vessel’s existing or new structure, ensuring all mechanical connections, electrical systems, and controls work in concert.

Control and Monitoring System Design

Thompson Marine designs and builds control and monitoring systems calibrated to the operational requirements of the vessel and the power systems installed, providing reliable command and clear visibility of all machinery.

Power Package Design and Build

Complete power packages are engineered, fabricated, and documented in-house, covering electrical integration, mechanical integration, and all supporting systems.

Power and Propulsion SystemS: Modern Power for Proven Hulls

Thompson Marine provides the engineering foundation for vessel builds, ensuring CAT marine engines and Berg Propulsion systems are specified, integrated, and installed for optimal performance from the first day of commercial service. Whether repower, retrofit, or new construction, Thompson Marine delivers the same engineering rigor and service quality. Engineering analysis includes:

Piping system calculations covering exhaust backpressure, fuel and air supply, and cooling water flow

Engine room air supply and exhaust sizing to maintain ideal operating conditions

Torsional Vibration analysis

Six-degrees-of-motion studies

Finite Element Analysis

Shaft whirling analysis

Electrical schematics and wiring diagrams

Upgrading an existing vessel requires more than a new engine or propeller. It requires re-engineering mechanical and electrical systems within the constraints of the hull, the engine room, and the vessel’s existing controls and auxiliary systems. Thompson Marine specializes in minimally invasive integration, reducing the need for costly structural modifications while delivering modern performance.

Fleet Modernization Planning

Thompson Marine works directly with fleet managers to develop repower and retrofit plans aligned with maintenance windows and operational schedules.

Legacy System Integration

Ensures new Caterpillar engines and Berg Propulsion systems work seamlessly with existing controls and auxiliary equipment where possible, delivering modern efficiency without a full vessel overhaul.

Commissioning Support


Every new Berg propulsion installation or major system upgrade benefits from factory-trained commissioning support to verify that the system has been installed correctly, that all control parameters are properly configured, and that the vessel performs to specification before returning to commercial service.

Thompson Marine provides complete Berg commissioning support, including:

  • Inspections
  • Lubrication and fluid services
  • Seal and bearing replacements
  • Pitch control system checks
  • Control system calibration
  • Full system performance verification

Berg Propulsion Integration


Berg Propulsion systems offer native control architecture capable of managing mechanical, direct-drive electric, and battery-hybrid power sources within a single platform. Thompson Marine’s engineering team configures Berg’s control system to the specific requirements of the vessel and the power plant, without complex third-party add-ons or external automation layers.

Hybrid Propulsion Systems

Thompson Marine designs and integrates hybrid propulsion systems combining Caterpillar main engines with Berg developed Z-drives and propellors, electric motors, variable frequency drives, and a Thompson Marine-developed control interface. These systems reduce main engine hours, lower fuel consumption and prolong expensive engine overhauls, and establish the architecture for future battery integration without requiring a second round of major upgrades.


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Every project starts with a conversation. Contact Thompson Marine to discuss what the right solution looks like.


Thompson Marine’s in-house engineering team provides complete system packaging and integration for CAT® marine engines and Berg Propulsion systems, covering new vessel builds, repowers, and retrofits. Engineering services include:

  • mechanical and electrical integration
  • control and monitoring system design and build
  • power package design and build
  • piping and ventilation analysis
  • vibration isolation
  • six-degrees-of-motion studies
  • finite element analysis
  • shaft whirling analysis
  • full electrical schematics and wiring diagrams

Every project is delivered with complete shipyard-ready documentation specific to the installation.

Yes. Thompson Marine specializes in re-engineering mechanical and electrical systems within the constraints of an existing hull, engine room, and vessel controls. The engineering team works in close coordination with installation and commissioning teams throughout the project, developing integration-ready packages that minimize structural modification and ensure new CAT® engines and Berg Propulsion systems work seamlessly with existing equipment. Thompson Marine also works directly with fleet managers to develop phased repower and retrofit plans aligned with maintenance windows and operational schedules.

Yes. Thompson Marine has designed and integrated hybrid propulsion systems combining CAT® main engines with Berg Z-drives, electric motors, variable frequency drives, and control interface. These systems keep main engines operating closer to their optimal load range, reducing fuel consumption and main engine hours.