Helix Pod Cartridge: Bringing Electric Pod Drives to Smaller Vessels

Electric pod drives have long been the exclusive domain of large commercial vessels—cruise ships, container ships, and ferries—where their 360-degree rotational thrust delivers 5-25% fuel efficiency gains and superior manoeuvrability. But smaller recreational and utility boats have been locked out due to a fundamental constraint: conventional electric motors were too large and heavy, creating excessive drag that negated the pod drive’s efficiency advantages. In a new article published in New Atlas, Helix’s Chief Marine Engineer James Edwards introduces the Pod Cartridge, a modular propulsion solution designed to democratise pod drive technology for the sub-megawatt marine market.

By leveraging Helix’s industry-leading power-dense motors—achieving 9.7 kW/kg in the SPC177 radial flux design—the Pod Cartridge delivers compact, high-power propulsion while reducing pod drag by 70% compared to traditional drives. These plug-and-play cartridges integrate motor, gearbox, bearings, and controls, allowing shipbuilders to reclaim valuable deck and hull space previously consumed by outboard motors and engine compartments. Initial launches span 100kW, 200kW, and 300kW configurations, with future expansion to 3MW. For operators, the result is dramatically improved efficiency, enhanced manoeuvrability, and hull designs optimised for comfort and functionality rather than propulsion constraints.

Read the full article: 360-Rotational Marine E-Thruster Pod Promises 70% Drag Decrease – New Atlas