Home / Government / USVs

Diesel outboards powering uncrewed marine operations

Safe, fuel-efficient propulsion for next-generation uncrewed surface vessels.

Supporting uncrewed marine operations

Uncrewed surface vessels (USVs) are remotely operated or autonomous craft that carry out maritime defence, surveillance and research tasks without a crew onboard. Demanding propulsion systems that offer power, range and minimal maintenance, Cox Marine diesel outboards are increasingly selected for USV platforms operating in challenging, high-risk environments worldwide.

Our V8 diesel outboards deliver the extended endurance, spark-free safety and rugged engineering required for long-duration autonomous missions. From polar monitoring to ecological surveys, Cox Marine is powering the future of uncrewed maritime capability.

First Responders

Why Cox diesel outboards are ideal for USVs

Remove time consuming repairs

Hot-swap capability

Diesel outboards with “hot-swap” capability eliminate the need for time-consuming inboard repairs – rapid replacement gets vessels back on mission fast, delivering vital tactical and logistical advantages for decisive naval operations.

Greater safety, lower volatility

Single fuel

In single-fuel operations, diesel outboards align with naval logistics – using the same fuel as larger vessels to boost interoperability, extend range, and enhance endurance, all with greater safety and lower volatility than gasoline.

Freedom to customise

Open controls architecture

Cox Marine’s open control architecture gives USV developers the freedom to customise – broadcasting data via standard ISO CANbus for seamless integration, and offering full access to control protocols and error-handling software for tailored autonomy and system compatibility.

Performance Data

Key features – built for uncrewed marine platforms

Power and precision 

High torque at low revs ensures smooth propulsion and directional stability – essential for mission accuracy and safe automated navigation.

Easy to integrate 

Compatible with industry-standard control systems and offering flexible mounting and steering options, the V8 is perfect for new USV designs or hybrid propulsion strategies.

Environmentally compliant

Certified to IMO II, RCD II, BSO-II, and EPA Tier 3 standards, the V8 meets stringent environmental requirements, supporting defence, security and research applications with minimal emissions impact. 

Trusted by USV innovators

From pilot projects to research collaborations, Cox Marine works with leading USV developers to deliver safe, long-range propulsion for uncrewed fleets. Backed by a support network and expert technical partners, we are at the forefront of autonomous maritime capability.

RePower

The Cox Marine V8

Your Engine, Your Way

300 V8 White
350 V8 White
300 V8 Black
350 V8 Black