Repowering the Master and Leader Tugboats
Client
Crowley Ship Assist & Escort
Scope of Services
Engine Replacement
Auxiliary Systems
Performance Testing
Regulatory Compliance
Timeline and Budget Adherence
Assets Used
Master & Leader Tugboats
Start/Completion
Master: June 4 to Oct 4 2024
Leader: Oct 7, 2024 to Jan 22, 2025
Project Overview
Repowers are major investments, typically exceeding $1 million. While not part of routine maintenance, they are essential during a tugboat’s 30- to 40-year lifespan to extend service life, comply with evolving emissions regulations, and address engine wear that can impact performance and reliability. To uphold its commitment to safety, efficiency, and environmental responsibility across its Ship Assist & Escort fleet, Crowley initiated repower projects for two key vessels: Master and Leader. The company turned to its in-house engineering services team to oversee the projects, leveraging their expertise from managing hundreds of new builds and retrofits across the maritime industry.
Project Scope
The repower scope covered both tugboats and focused on several key areas:
- Engine Replacement: New EPA Tier 4-compliant, environmentally friendly engines replaced the older models.
- Auxiliary Systems: Enhancements to cooling and exhaust systems to align with the new engines.
- Performance Testing: Comprehensive testing to confirm the vessels met performance benchmarks.
- Regulatory Compliance: Adherence to EPA, ABS, and Coast Guard standards.
- Timeline and Budget Adherence: Efficient project completion within time and cost constraints.
Results
- Improved Vessel Performance: Both tugboats now operate more efficiently with better fuel usage and reduced emissions.
- Environmental Compliance: The repowered tugboats meet EPA Tier 4 emission standards.
- Minimal Operational Disruption: The repower was completed on time and within budget, ensuring ongoing operations with minimal downtime.
Before
After
