Twin Disc is proud to supply the key propulsion solution for Port Houston’s upcoming 22-metre hybrid-electric tour vessel.

The ship will feature dual Twin Disc MGE-5065SC gearboxes, driven by e-motors through our EC600PC propulsion control system and engineered to seamlessly operate in both battery-electric and diesel-electric modes. This advanced design provides power from the motor immediately in both clockwise and counterclockwise directions, ensuring responsive and reliable manoeuvrability. The MGE-5065SC gearboxes maintain optimal lubrication regardless of shaft rotation through a bi-directional oil pump and are compatible with the same installation footprint as our standard MGX series transmissions, making them ideal for retrofit or new-build applications. These features reflect Twin Disc’s commitment to performance, efficiency, and adaptability in modern marine propulsion systems. 

The new vessel is being designed and built in the USA by leading international shipbuilder Incat Crowther in collaboration with Breaux Brothers. It will replace the nearly 70-year-old M/V Sam Houston, providing a new unique experience for passengers. The vessel will accommodate up to 150 passengers across two decks, with the main deck seating 68 guests — including two wheelchair-accessible spaces — in a climate-controlled cabin equipped with modern amenities. The upper deck will carry an additional 81 passengers, with approximately 90% of the seating under cover, carefully designed to maximise panoramic views while maintaining safe access throughout. During its regular two-hour educational tours along the Houston Ship Channel, the vessel will operate in zero-emission, all-electric mode, with backup generators available for extended range or operational flexibility. Construction is scheduled to begin in the second half of 2025, with the vessel expected to enter service by late 2026, marking a significant step forward in sustainable marine transportation.