Two new hybrid-electric passenger ferries built by Derecktor Shipyards, Mamaroneck, N.Y., for Chatham Area Transit (CAT), Savannah, Ga., were recently launched and christened.
The Juliette Gordon Low II and Susie King Taylor II are the first hybrid ferries in the U.S. to feature Marine Jet Power (MJP) UltraJet 305 waterjet propulsion systems, according to the manufacturer.
The 65' aluminum catamarans are designed to operate on short, continuous routes between City Hall Landing, Trade Center Landing, and Waving Girl Landing. Each ferry can carry up to 149 passengers and reach a top speed of 11 knots.
The vessels are powered by a BAE Systems HybriGen Power system paired with dual MJP waterjets. Two Cummins 6.7L marine diesel generators charge the 308 kWh XALT lithium-ion battery systems.
According to MJP, waterjets were chosen for their shallow draft, maneuverability, and compatibility with hybrid-electric systems, addressing the challenges of frequent docking and varying currents in Savannah’s waterways. “Waterjets provided the perfect solution,” said Kevin Kirby, president and regional director of Marine Jet Power Americas.
Derecktor, which has built six hybrid-electric vessels in the past decade, continues to expand its portfolio of sustainable maritime technology. “Building these hybrid waterjet ferries allowed us to further solidify our position as a leader in this evolving field,” said Erik Derecktor, new construction commercial manager for Derecktor Shipyards.
The ferries are expected to begin passenger service in Savannah in the coming weeks.
Vessel Specifications:
- Length Overall: 65'
- Top Speed: 11 knots
- Hull Material: Welded aluminum
- Propulsion System: MJP UltraJet 305 waterjets (2)
- Electric Motors: BAE HybriGen Power permanent magnet traction motors
- Diesel Generators: Cummins 6.7L marine engines (2) with HDS 200 ISG
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