Loki Dynamics

Loki Dynamics operates as the UK commercial and distribution Arm for MD Powertrain, the Swedish developer of marine diesel engines. At Seawork 2026 in Southampton on 11 June 2026 it unveiled the MD 3.0, the first engine of its kind engineered from the outset for uncrewed surface vessels, in the show's inaugural Autonomous and Remote-Operated Vessel Pavilion.

The MD 3.0 carries integrated autonomous control interfaces and a compacted aluminium block built for the 24-hour duty cycles uncrewed operation demands, a profile conventional marine diesels cannot sustain under warranty when run without a helmsman varying the throttle. That removes one of the two structural barriers the Society of Maritime Industries identified in April 2026, alongside standardised control interfaces, as blocking UK maritime-autonomy firms from scaling past demonstration.

No contracts or partnerships had been disclosed at the Seawork launch. The commercial significance is that a USV builder can now specify a warranted, catalogue engine for autonomous operation rather than commissioning bespoke propulsion, with clear dual-use application to coastal patrol and mine-hunting support craft.