Case Study: How a Patrol Boat Fleet Achieved 28% Fuel Savings with TSD Surface Drive Systems

Executive Summary

A Southeast Asian coast guard fleet of 12 patrol boats upgraded from traditional propeller systems to TSD BG850 surface drive systems. The results exceeded expectations, with 28% fuel consumption reduction and improved operational performance.

Background

The coast guard operated a fleet of 12 x 40-meter patrol boats equipped with traditional propeller systems. Each boat consumed approximately 800 liters of fuel per 8-hour patrol mission. Annual fuel costs exceeded $2.4 million for the entire fleet.

Implementation

The fleet underwent a phased upgrade, with 4 boats receiving TSD BG850 surface drive systems in the first phase. Each boat was equipped with dual BG850 drives rated for 850 HP each, providing 1700 HP total propulsion.

Results

Fuel Consumption

Performance Improvements

Operational Benefits

Financial Analysis

| Metric | Value |

|--------|-------|

| Upgrade cost per boat | $180,000 |

| Annual fuel savings per boat | $336,000 |

| Payback period | 6.4 months |

| 5-year savings per boat | $1,680,000 |

| Fleet 5-year savings | $20,160,000 |

Conclusion

The coast guard's experience demonstrates the significant financial and operational benefits of upgrading to surface drive propulsion. The 28% fuel savings, combined with improved performance and reduced maintenance, delivered a compelling return on investment.

Based on this success, the coast guard has approved funding for upgrading the remaining 8 patrol boats in the fleet.