Posted on May 29, 2026
Dutch maritime design house Vuyk Engineering was selected by heavy lift shipping and offshore transportation contractor Jumbo Maritime for its newly ordered L-Class heavy lift transport vessels (HLTV). The high-end vessels are designed to support offshore transport and lifting operations, integrating substantial cargo capacity with up to 2400 t crane handling capabilities in one single, versatile design.
The new L-Class vessels are developed to transport a broad range of heavy cargoes, including wind turbine components, modules and carousels. The vessel design combines a large cargo hold with two Huisman heavy lift cranes and substantial deck space for project cargo, enabling transportation and lifting operations to be carried out seamlessly from one integrated vessel platform.
Vuyk was responsible for the design of the vessels together with Jumbo’s in-house design team, including the definition of main dimensions and performance characteristics. Particular attention was given to optimising service speed and fuel efficiency.
“We are proud that Jumbo Maritime once again selected Vuyk Engineering for their new vessels”, says Floris Toetenel, Director at Vuyk Engineering. “Together with Jumbo Maritime, the focus has been on jointly defining a new vessel series that can both transport and handle heavy cargo offshore, efficiently using its own cranes.”
The L-Class HLTV design builds on Vuyk Engineering’s extensive track record in the design of heavy lift transport vessels. This project reflects the company’s expertise in optimizing the interaction between efficient sailing performance, energy consumption and cargo handling capabilities.
Built at Dajin Heavy Industry, the first vessel is expected to be delivered in the third quarter of 2028.
