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Tactical Diving Vehicles – Adaptable Platforms For An Evolving Littoral Battlespace

Tactical Diving Vehicles (TDVs) act as force multipliers for maritime Special Operations Forces (SOF), greatly enhancing operational capability.  With a re-focus on the maritime amongst NATO and her allies, as the littoral operational battlespace evolves to meet an increasing range of threats, the relevance of TDVs has never been more apparent.


As we assess the tactical and strategic landscape, TDVs are increasingly seen as a vital component of current and future SOF littoral and underwater manoeuvre operations.  Such vehicles bridge critical capability gaps, enhance operational capability whilst increasing mission success probability when operating in complex, high threat littoral environments.


JFD Carrier Seal TDV in Surface mode
JFD Carrier Seal 8 man Multi-Mode Tactical Diving Vehicle offer a long range, rapid over the horizon infiltration capability
Shadow Seal covertly deployed from submarine while fully submerged
Illustration showing the possibility of covert deployment of TDV from Submarine

‘Integrate to Extend’ Multi-Mission Capability

Multi-mode TDVs capable of transiting on the surface, semi-submerged and sub-surface, in particular offer SOF commanders a flexible and adaptable platform that can be configured for a wide range of operational objectives. Central to this adaptability is the “integrate and extend” concept, where the base TDV platform can be enhanced by integrating advanced technologies that improve both mission effectiveness and diver safety, extending operational relevance and utility across various scenarios.

For example, the integration of biometric monitoring systems allows for real-time health assessments of divers, feeding data back to a central on-board diver ‘data bus’. This can also enhance underwater mission communication and rehearsal, providing teams with an integrated picture of both environmental conditions and diver status. This enables commanders to quickly overlay, mesh, and enrich the mission reconnaissance data with situational awareness, giving the team on board accurate and up-to-date information.

This integrated approach enhances the ability for TDVs to adapt to diverse mission profiles, from Intelligence, Surveillance, Target Acquisition, and Reconnaissance (ISTAR) operations to stand-off attacks and diver delivery. For example, a concept operation could involve a three vehicle Carrier Seal platoon, where each TDV is optimised for specialist mission objectives: one vehicle focusing on ISTAR, deploying Autonomous Underwater Vehicles (AUVs) to gather intelligence; another configured for stand-off attack, equipped for precision strikes; and the third serving as a diver delivery vehicle. The integration of mission-critical data and diver safety systems across these platforms ensures that each vehicle can operate effectively within a larger, coordinated mission. This level of mission specialisation makes multi-mode TDVs an invaluable maritime SOF asset.


A Photograph of our Shadow Seal semi submerged with two combat diver operators
JFD Shadow Seal 4 Man Multi-Mode Tactical Diving Vehicle reduces the physical stress associated with extended duration tactical diving operations by transiting on the surface and semi-submerged before finally submerging
JFD 8 man team disembark for amphibious recon and raiding
JFD Carrier Seal 8 man Multi-Mode Tactical Diving Vehicle in semi-submerged mode allows the discrete infiltration / exfiltration of specialist amphibious reconnaissance & raiding forces without the need to dive
Carrier Seal in high speed surface mode
A three vehicle TDV platoon greatly increases ISTAR and kinetic operational capabilities

Meeting Modern Amphibious Requirements

As the UK Royal Navy /  Royal Marine Commandos and other allied amphibious forces re-assess their small craft requirements, TDVs emerge as a viable solution for both discrete and covert littoral operations. For specialist amphibious reconnaissance & raiding forces that do not have a tactical diving capability, the ability to operate in a semi-submerged mode significantly reduces the vehicle’s signature.  This provides a means of discrete infiltration and exfiltration when in high threat areas not offered by conventional surface raiding craft, thus reducing the probability of mission compromise.  

JFD Tactical Diving Vehicles covertly inserted from a civilian vessel
Multi-mode TDVs may be operated from insertion and extraction support platforms such as naval and civilian surface vessels, rotary or fixed wing aircraft.  

 

Besides operability with larger insertion / extraction support platforms, the long-range capability of TDVs such as the JFD Carrier Seal, offer SOF units an independent organic over-the-horizon capability.  This not only increases operational flexibility at a unit level, but also enables the employment of multi-mode TDVs without exposing high-value assets such as submarines and surface ships, to unnecessary risk.   Moreover, for navies that lack submarines capable of supporting TDV operations, TDVs offer a cost-effective alternative, enabling maritime SOF the ability to cross an expanding ‘water gap’ and conduct operations that would otherwise be beyond their reach. The versatility and relatively low cost of TDVs compared to larger platforms make them an attractive option for maritime security providing rapid response, coastal defence, and critical national infrastructure (CNI) protection.

Carrier Seal transported by trailer for greater organic deployment options
The transportability of multi-mode TDVs by road, rail, sea or air offers a SOF unit an organic deployment capability
Operator offering fire support from The Carrier Seal TDV
Multi-mode TDV offer SOF Commanders the means of covertly infiltrating fire support and stand-off attack platforms onto maritime targets, that is not possible with conventional surface raiding craft

Looking to the Future

The mission configurability and specialisation concept is further reinforced when embracing emerging technologies such as  manned and unmanned systems. Integrating diver monitoring technologies and advanced life support systems will further enhance operational effectiveness and safety. This includes the integry,ation of onboard data systems that provide a unified communication and information platform for divers, enhancing both mission planning and real-time operational adjustments.  As the strategic environment shifts, JFD TDVs will increasingly incorporate these innovations, ensuring that they remain at the forefront of maritime SOF underwater operations.


Two Combat divers wearing rebreathers whilst underwater inside the Carrier Seal TDV
Fully submerged Combat Divers transported within the Carrier Seal TDV

Strategic defence reviews highlight a growing need for adaptability and reconfigurability in military assets. In this context, multi-mode TDVs provide a solution that not only meets current operational demands but also anticipates future requirements. Their ability to operate independently in the littoral of extended distances, deliver over-the-horizon capabilities and provide robust environmental protection for Tactical Divers when submerged, sets them apart from the traditional Swimmer Delivery Vehicle (SDV) and other maritime small craft platforms.


As the underwater battlespace continues to evolve, TDVs play a crucial role in shaping the future of maritime security. By embracing emerging technologies and maintaining a focus on adaptability, these platforms remain integral to the success of maritime SOF littoral operations worldwide.


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