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CSL 50/30 UWDA

Underwater De-Armer

The CSL 50/30 VIP UWDA Underwater De-Armer is an adapted version of the 30mm Viper disruptor, specifically designed for the safe de-arming of limpet mines. The system features a sealed breech without a gas regulator to prevent water ingress before operation and is compatible with multiple mounting options to suit diverse marine environments and vessel types.

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To ensure secure attachment underwater, the UWDA offers several mounting systems. A magnetic base with three rows of powerful neodymium magnets provides a firm hold on steel hulls and structures, with each row able to pivot independently to conform to uneven surfaces. For composite hulls, a suction base uses three hand-operated vacuum cups to create a reliable attachment. Where suction is not possible, an underwater nail gun can be used to fix a mounting base to uneven composite surfaces found on smaller vessels.

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The kit includes a buoyancy aid, consisting of a flotation bag and high-visibility diving cable, to assist the diver in deploying and retrieving the system safely. For each shot, a snout attachment is fitted to the barrel to prevent water ingress, ensure projectile acceleration, and maintain the recommended stand-off distance.

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The UWDA can fire frangible projectiles weighing 150g, available in frangible clay, frangible ceramic, or ceramic balls with a steel-tipped penetrator. For tougher targets, the system can also fire solid steel slugs. In addition, water jet shots are possible using a water piston loaded into the barrel, similar to the standard Viper disruptor configuration.

Key Features:

  • Magnetic base with pivoting neodymium magnets for steel hull attachment

  • Suction base for composite hulls via vacuum cups

  • Underwater nail gun for fixing mounts to uneven surfaces

  • Buoyancy aid with a flotation bag and high-visibility diving cable

  • Snout attachment for water seal and correct the stand-off distance

  • Frangible projectile options (clay, ceramic, ceramic with steel penetrator)

  • Solid steel slug capability for tougher targets

  • Water jet shot configuration available

Typical Applications:

  • Neutralisation of limpet mines on steel and composite hulls

  • Underwater EOD operations requiring secure mounting

  • Maritime counter-IED tasks

  • Diver-deployed render safe procedures

  • Offshore and naval EOD support missions

UWDA-in-Peli-Case.jpg

The UWDA full kit in the customised Peli Case that ensures all components are kept completely safe for storage and transport.

Why Choose the CSL 50/30 VIP UWDA?

The CSL 50/30 VIP UWDA is engineered for reliable underwater deployment and effective neutralisation of limpet mines across diverse marine conditions. Its multiple mounting options ensure secure attachment to both steel and composite surfaces, while the snout attachment maintains consistent performance by preventing water ingress and preserving projectile velocity. With flexible projectile choices and water jet capability, the UWDA offers operators a versatile solution for complex underwater EOD tasks.

Clockwise from right: UWDA with 'mag stand' fitted. Bottom right: Video short showing deployment as part of training in Slovenia. Below: UWDA ready with 'mag stand' fitted, to go underwater with divers as part of training in Slovenia.

The Underwater De-armer stood on a quayside prior to being taken underwater for deployment.
The CSL 50/30 VIP UWDA shown with the 'mag stand' fitted.

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