Underwater Vessel Propeller Maintenance for Gulf Star Shipping

Underwater Vessel Propeller Maintenance for Gulf Star Shipping

Gulf Star Shipping, a leading maritime transport company based in the GCC region, operates a fleet of cargo vessels that navigate the busy trade routes of the Arabian Gulf. One of their primary vessels, the MV Al Safina, began experiencing significant vibrations and a noticeable decrease in propulsion efficiency during recent voyages. Initial assessments suggested issues with the vessel's propeller, potentially caused by cavitation damage or debris impact.

Challenge

With a tight shipping schedule and high-demand cargo commitments, Gulf Star Shipping faced the dilemma of addressing the propeller issue without causing delays. Traditional dry-docking for inspection and repair would result in substantial downtime and financial losses. The company needed an immediate, cost-effective solution that would allow the MV Al Safina to return to service as quickly as possible.

Solution

El Salam Ships & Boats Repairing Company was commissioned to provide an underwater inspection and maintenance service. Leveraging our expertise in underwater vessel repairs, we proposed a plan to conduct on-site propeller maintenance without the need for dry-docking.

Implementation

1. Underwater Inspection:

   • Our team of certified divers conducted a comprehensive underwater inspection using advanced imaging equipment.
   • The inspection revealed that two of the four propeller blades had minor bends and surface roughness due to cavitation and impact with floating debris.

2. Repair Plan Development:

   • A detailed repair strategy was formulated, outlining the steps for propeller blade straightening and surface polishing.
   • Safety protocols and contingency plans were established to mitigate any risks during the underwater operation.

3. Execution of Repairs:

   • Blade Straightening:
     • Specialized hydraulic tools were used underwater to carefully straighten the bent blades to their original specifications.
   • Surface Polishing:
     • The propeller blades were polished using abrasive materials to smooth out imperfections, reducing future cavitation risks and improving hydrodynamic efficiency.
   • Quality Assurance:
     • Post-repair inspections were conducted to ensure the integrity of the repairs and the optimal performance of the propeller.

4. Testing and Verification:

   • The vessel underwent sea trials to assess the effectiveness of the repairs.
   • Vibration and speed tests indicated a significant improvement, confirming the success of the maintenance work.

Outcome

The project was completed within a 10-day window, well within the client's operational schedule. By avoiding dry-docking, Gulf Star Shipping saved approximately USD 200,000 in potential losses from delayed shipments and dock fees. The MV Al Safina returned to service with enhanced propulsion efficiency, reduced fuel consumption, and improved overall performance.

Benefits to the Client

• Cost Savings: Direct savings from avoiding dry-docking and indirect savings from maintained shipping schedules.
• Time Efficiency: Rapid response and repair allowed the vessel to resume operations without significant delays.
• Performance Improvement: Restored propeller efficiency led to better fuel economy and reduced operational costs.

Client Testimonial

"El Salam's professional approach and swift action were crucial in getting the MV Al Safina back on schedule. Their underwater repair services exceeded our expectations in quality and efficiency."
— Ahmed Al Mansoori, Fleet Manager, Gulf Star Shipping

Conclusion

El Salam demonstrated its capability to deliver high-quality underwater repair services under pressing timelines. Our commitment to excellence and client satisfaction solidified our relationship with Gulf Star Shipping, positioning us as a preferred service provider in the region.