Royal Fleet Auxiliary ship installs high-speed connectivity for crews at sea

The Challenge: Maintaining Connectivity in Hazardous Environments

RFA Argus serves as one of the UK armed forces' most versatile platforms: the Royal Navy's Primary Casualty Receiving Ship with a 100-bed hospital, a training vessel for military helicopters, and a deployment platform for counter-narcotics operations, disaster relief missions, and Royal Marines amphibious raids. Operating up to 9,000 miles from home, the vessel must sustain reliable communications across multiple critical functions in demanding maritime environments.

Key operational challenges include:

• Remote operations — Extended deployments far from shore-based infrastructure
• Extreme sea conditions — High waves and harsh weather that degrade signal stability
• Mission-critical resilience — Uninterrupted connectivity supporting medical operations, command coordination, and crew welfare simultaneously

Standard connectivity solutions fall short when a vessel must support emergency surgical procedures, coordinate with allied forces, and maintain morale for 400 personnel whilst operating in unpredictable conditions.

The Need: Crew Welfare and Operational Readiness

When a Royal Navy vessel deploys 9,000 miles from home, the 400 commandos and crew face extended separation from families and friends. Reliable connectivity becomes essential—not just for morale, but for mission effectiveness.

• Resilient broadband connectivity to enable crew to stay in touch with family over long deployments
• Data traffic segmentation to prioritise operational requirements while supporting crew welfare services
• Richer network services at sea capable of handling video calls and real-time communications in extreme maritime conditions

The Solution: LEO Satellite Internet via the OneWeb Network

Two Kymeta Peregrine u8 maritime terminals were fitted while Argus was docked in Falmouth—the first deployment of such technology on a military ship. Airbus Defence and Space served as distribution partner, delivering the OneWeb network service and bringing low-latency, high-speed broadband via low earth orbit satellite internet.

The solution combined:

• 2 Kymeta Peregrine u8 terminals — Compact, flat-panel, fully integrated maritime terminals
• OneWeb LEO constellation — 600+ satellites orbiting 1,200km above Earth, delivering global, low-latency connectivity
• Bonded service plan — Two terminals operating together for resilient, high-capacity bandwidth

This integrated approach ensured continuous connectivity for operations and crew welfare, supported by Eutelsat's broader portfolio of defence connectivity solutions designed for mission-critical maritime environments.

The Impact: Enhanced Connectivity at Sea

RFA Argus marked a milestone as the first naval vessel to deploy LEO satellite internet, delivering measurable benefits:

• Enhanced military connectivity — Low latency, high-bandwidth service supporting 500GB daily and up to 15TB monthly
• Improved crew morale — Reliable contact with family and friends for 400 crew members deployed globally
• Operational resilience — Consistent performance across challenging sea states and remote locations
• Strategic advantage — Crew welfare transformed into operational readiness through better-connected personnel

For more insights on maritime connectivity innovation, visit the Eutelsat media centre.

Frequently Asked Questions

Why did RFA Argus need high-speed connectivity at sea?

RFA Argus operates as the Royal Fleet Auxiliary's Primary Casualty Receiving Ship, training platform, and counter-narcotics vessel—often 9,000 miles from home. These missions require resilient connectivity supporting operational command, medical coordination, and crew welfare for up to 400 Royal Marine and army commandos. In extreme maritime conditions, standard solutions cannot maintain the continuous service needed for both mission-critical systems and crew morale during extended deployments.

How does LEO satellite internet improve military connectivity?

Low earth orbit satellite internet delivers high-speed broadband with significantly reduced latency compared to traditional geostationary solutions. The Eutelsat OneWeb constellation—comprising over 600 satellites orbiting 1,200km above Earth—provides continuous global coverage, enabling vessels to maintain stable connections even in remote environments. This low-latency performance supports real-time communications and mission-critical applications whilst allowing crews to stay in touch with family, directly enhancing both operational effectiveness and wellbeing.

What role does the OneWeb network play in naval connectivity?

The OneWeb network serves as a global LEO communications infrastructure optimised for defence and maritime operations. Airbus facilitated installation of two Kymeta Peregrine u8 terminals aboard RFA Argus—compact, fully integrated antennas with embedded modems. This configuration delivers up to 500GB per day and 15TB per month. The dual-terminal setup, bonded together, provides redundancy and enhanced capacity, ensuring continuous connectivity even if one path experiences congestion—critical for naval vessels operating far from shore infrastructure.

How does enhanced connectivity support crew welfare aboard Royal Navy vessels?

Enhanced connectivity allows crews to maintain regular contact with family through voice and video calls, access recreational resources, and participate in online training during long deployments. As the Royal Navy's specialist Digital unit emphasised, crew welfare and morale directly supports a platform's fighting capability. Reliable, high-speed connectivity enables personnel to stay engaged, reduce isolation, and sustain mental wellbeing—factors supporting retention, operational readiness, and mission success across frontline vessels.