Blue Ops integrates Volvo Penta propulsion as Variant 7 enters full-rate production
Blue Ops completed the first integration of Volvo Penta’s 320-horsepower D4-320 diesel engine and DPI drive into its Variant 7 USV and disclosed that the vessel had entered full-rate production.
Why it matters
The update combines a new propulsion configuration with the more material disclosure that Variant 7 has moved into full-rate production.

Evidence notes
- The propulsion configuration is connected to Variant 7’s autonomous navigation, remote-operation, mission-planning and payload-management architecture.
- Blue Ops positions the 24-foot craft for high-speed littoral operations, with diesel propulsion adding a commercially supported option for endurance and serviceability.
- The production disclosure is distinct from the propulsion test itself and marks a transition from development-stage integration to serial manufacturing.