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Shallow Water Combat Submersible

Class overview
BuildersTeledyne Brown Engineering[3]
OperatorsUnited States Navy
Royal Navy (planned)
Preceded bySEAL Delivery Vehicle
Cost$383 million (program cost)[1]
On order7 USN, 3 RN[4][5]
Building2[2]
Completed2[2]
General characteristics
TypeSubmersible, diver propulsion vehicle
Displacement4.5 tonnes (5.0 short tons)[3]
Length6.8 meters (22 ft)[3]
Beam1.5 meters (4.9 ft)[3]
Draft1.5 meters (4.9 ft)[3]
PropulsionLithium-ion batteries powering electric motors
Speed6 kn (11 km/h)
Endurance12 hours[6]
Test depth>190 feet (58 m)[6]
Complement6 (2 crew, 4 passengers)[3]
Sensors and
processing systems		Inertial navigation system, high-frequency sonar for obstacle/mine avoidance and navigation, GPS
ArmamentSEAL team personal weapons, limpet mines

The Shallow Water Combat Submersible (SWCS) is a crewed submersible and a type of swimmer delivery vehicle that is planned to be used to deliver United States Navy SEALs and their equipment for special operations missions. It will replace the current Mark 8 SEAL Delivery Vehicle. The Navy planned to introduce the SWCS in 2018,[7] although "slippage in the development"[8] has delayed its introduction until 2019. In 2020, the U.S. Navy stated that it was undergoing sea trials and testing.[2][9] As of October 2018, two subs have been delivered to the Navy while another two were in production.[2] The SWCS will serve alongside the Dry Combat Submersible (DCS), a midget submarine with a dry interior being developed by Lockheed Martin as a replacement for the cancelled Advanced SEAL Delivery System (ASDS).[8]: 7 

  1. ^ "Teledyne Awarded $383 Million Shallow Water Combat Submersible Contract". Defense-aerospace.com. 11 July 2011. Retrieved 6 September 2018.
  2. ^ a b c d Burgess, Richard (October 2018). "New Seahorses For The Seals". Seapower.
  3. ^ a b c d e f Sutton, H.I. (19 May 2017). "SWCS". Covert Shores. Retrieved 20 September 2018.
  4. ^ Cite error: The named reference bgov was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference RoyalNavy was invoked but never defined (see the help page).
  6. ^ a b Page, Lewis (10 April 2009). "New Navy SEAL minisub's IT-system specs released". The Register. Retrieved 6 September 2018.
  7. ^ Szymanski, Tim (April 11, 2018). Statement of Rear Admiral Tim Szymanski, U.S. Navy Commander Naval Special Warfare Command before the Senate Armed Services Committee Subcommittee on Emerging Threats and Capabilities (PDF) (Speech). Washington, D.C. Retrieved September 16, 2018.
  8. ^ a b McRaven, William (March 14, 2015). Hearing on National Defense Authorization Act for Fiscal Year 2015 and Oversight of Previously Authorized Programs Before the Committee on Armed Services, House of Representatives, One Hundred Thirteenth Congress, Second Session (PDF). Subcommittee on Intelligence, Emerging Threats and Capabilities Hearing on Fiscal Year 2015 National Defense Authorization Budget Request from the U.S. Special Operations Command and Posture of the U.S. Special Operations Forces. Washington, DC: Government Printing Office. Retrieved January 23, 2019.
  9. ^ Ong, Peter (7 June 2020). "USSOCOM Reveals Dry Combat Submersible Entering Service Soon". Naval News. Retrieved 23 June 2023.

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