**OVERVIEW:** The SEAL ASDS (Advanced SEAL Delivery System) is a submersible designed for covert insertion and extraction of special operations forces, primarily US Navy SEALs.

**DETAILS:**
Development of the ASDS stemmed from the need for a more capable and self-contained submersible delivery system than previous swimmer delivery vehicles (SDVs). Prior systems, while effective, often required extensive modifications to host submarines and lacked the internal environmental control and endurance necessary for extended missions in diverse environments. The ASDS program aimed to provide a submersible with a fully enclosed, dry environment for SEAL teams, allowing them to transit longer distances, carry more equipment, and remain in optimal condition for mission execution. The design emphasized stealth, maneuverability, and operational flexibility, enabling the ASDS to operate independently or in conjunction with host submarines. Key to its design philosophy was the ability to launch and recover from modified host submarines, surface ships, or even shore facilities. The ASDS represented a significant advancement in special operations capabilities, offering a more sophisticated and versatile platform for underwater missions.

The primary role of the SEAL ASDS is the clandestine insertion and extraction of special operations forces, specifically US Navy SEALs, into denied areas. It provides a secure and environmentally controlled means of transport, allowing SEALs to arrive at their target location rested and prepared. Beyond troop transport, the ASDS can also support reconnaissance missions, underwater infrastructure inspection, and other covert operations requiring a submerged platform. It is not designed for Anti-Submarine Warfare (ASW), Anti-Air Warfare (AAW), or Anti-Surface Warfare (ASuW) roles. The ASDS's operational profile necessitates a high degree of stealth and maneuverability, allowing it to navigate complex underwater environments and avoid detection. Its ability to operate independently and launch from various platforms significantly enhances its operational flexibility.

The SEAL ASDS's capabilities are enhanced by its integrated sensor suite. The Generic Submarine Periscope provides visual situational awareness for navigation and target identification during surfaced or near-surface operations. The optical sensors within the periscope aid in identifying surface contacts and assessing environmental conditions. The lack of armament underscores its reliance on stealth and evasion tactics. Internal environmental control systems are critical for maintaining a habitable atmosphere for the SEAL team during extended submerged transits. The emphasis on internal habitability distinguishes it from earlier SDVs, significantly enhancing mission endurance and SEAL team effectiveness.

**SPECIFICATION:** Length: 19.8 m || Beam: 2.1 m || Draft: 0.0 m || Disp: 0 t

**SENSORS:** Generic Submarine Periscope, Optical

**ARMAMENT:** None