L3Harris Wins Multimillion-Dollar Contracts to Equip TKMS Submarines With Masts

L3Harris Technologies has secured two contracts from Thyssenkrupp Marine Systems (TKMS) to deliver mast-raising equipment and integrated electronic control units for submarine platforms. The mechanical and electronic systems support modern naval defense infrastructure by automating the deployment and retraction of modular mast assemblies.

Operational Challenge and Partner Responsibilities
Subsurface platforms require rapid, reliable extension and retraction of external sensors while minimizing mechanical wear, acoustic signatures, and hull penetrations. These assemblies operate under high hydrostatic pressure and cyclical hydrodynamic stress during transit and surveillance operations.

To address these operating envelopes, TKMS serves as the naval shipbuilder and platform integrator, incorporating the subsystem into vessel hulls. L3Harris Technologies designs and manufactures the mechanical lifting apparatus and the dedicated electronic control units that govern actuation sequences.

Technical Architecture and Operational Functions
The system coordinates the movement of physical masts carrying sensor suites, RF antennas, and optronic sensors. Key architectural features include:

Electronic Control Units: Manage actuation timing, position monitoring, and payload interlocks, preventing mechanical conflicts during mast extension or retraction.

Actuation Mechanics: Utilize high-strength, corrosion-resistant alloys engineered to withstand severe marine environments, high pressure cycles, and shock loading.

Digital Integration: Provide control interfaces that interface directly with the centralized vessel management and combat control architecture.

By centralizing control within dedicated electronic units, the system stabilizes deployment cycles for communications, electronic surveillance, and navigation instruments.

Naval Applications and Lifecycle Maintenance
Submarine design prioritizes vessel availability and reduced maintenance downtime. Unscheduled maintenance on penetrating or non-penetrating mast wells requires extensive drydock support.

The modular architecture engineered by L3Harris reduces mechanical complexity at the hull interface. The use of robust structural materials and fault-monitored electronic controllers reduces wear across continuous operational cycles. This approach supports platform modernization programs by extending scheduled maintenance intervals, limiting lifecycle support costs, and ensuring sensor operational readiness in naval environments.

Edited by Evgeny Churilov, Induportals Media - Adapted by AI.

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