Two 30-m vessels will be built in Brazil for Hermasa Navigation and its sustainable barge towage in the Amazon basin
In Brazil, Hermasa Navigation, a subsidiary of Amaggi, is building two pusher tugs with engines that can combust biodiesel to operate on a major Brazilian waterway.
Robert Allan Ltd has been contracted to provide naval architecture for these 30-m vessels, and Wärtsilä to provide two medium-speed marine diesel engines.
Hermasa began building these two pusher vessels at the start of this year, and they will be delivered in 2027. They will have sufficient power to push up to 20 barges, carrying a total of 32,000 tonnes of grain, on the Amazon inland waterway system.
Robert Allan said these tugs will be built to its RApide 3000-Z2 design and ABS class for inland navigation and towage and will be tailored for the unique conditions of the Madeira River.
“A key differentiator of these vessels is their ability to operate on B100 biodiesel as well as conventional marine diesel oil, reinforcing Hermasa’s commitment to sustainability and reducing environmental impact,” said the naval architect.
“The RApide 3000-Z2 push boats are designed for shallow-draught operation, enabling safe and efficient navigation throughout the Amazon River basin.”
They will have accommodation for 10 crew, a moulded beam of 12 m, a moulded depth of 3 m and a navigational draught of 2 m, two MWM diesel generator sets and two Kongsberg Maritime-manufactured, withdrawable US155 P14 Z-drives with 1,800 mm fixed pitch propellers, powered by two Wärtsilä 6L20 diesel engines, each rated at 1,150 kW.
“The fuel flexibility of the Wärtsilä engines will enable these two new pusher vessels to operate using environmentally sustainable biofuels,” said Amaggi director of logistics and operations, Claudinei Zenatti.
“By using biodiesel, these engines are expected to lower total greenhouse gas emissions, supporting both our company’s environmental commitments and the broader goal of delivering more sustainable river transport.”
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