Undersea Warfare

Agenda Submarine Classes Deployment Cycles Weapons and sensors Submarine Missions

Stealth– Classified missions

Agility– Anywhere, everywhere

Endurance– Global operations on nuclear power

Multi-mission Payload Delivery– Strike, undersea, mine & special warfare

America’s SubmarinesHunters, Killers & Nuclear

DeterrenceHunters, Killers & Nuclear

Deterrence

Force StructureForce Structure

America’s Submarines

SSN - 55 Fast Attack Submarines

SSGN - 4 Guided Missile Submarines

SSBN - 14 Ballistic Missile Submarines

34% of the Nation’s Warships – Less than 6% of Navy Manpower

34% of the Nation’s Warships – Less than 6% of Navy Manpower

Force StructureForce Structure

US Navy Submarines Fast Attack Submarine Classes (SSN)

Los Angeles Class Seawolf Class Variable deployment cycle

Ballistic Missile Submarines (SSBN)Ohio ClassTwo crews, four month deployments

Guided Missile Submarines (SSGN)– Still considered Ohio Class (only 4 units)

Forward Presence

Intelligence, Surveillance, & Reconnaissance

Special Warfare

Anti-Surface /Submarine

Warfare

Mine Warfare

Attack Submarine MissionsAttack Submarine MissionsStrike

Warfare

Battle Group

Operations

MissionsMissions

Los Angeles Class (SSN) – 44 strong

Los Angeles Class (SSN)

Dimensions: 362 x 33 x 32.3 ft. Displacement: 6080 tons standard

6927 tons submerged Crew: 120 enlisted 13 officers Sonar:

BQQ 5A(V) – BQQ 5D/E active/passive

BQR 23/25 – TB-23/29 thin line towed array

BQS 15 active close range ice detection

MIDAS mine detection after SSN 751

Los Angeles Weapons Systems

Tomahawk: TLAM-N, TLAM-C/D, TASM

Vertical Launch System (after SSN 719)

McDonnell Douglas Harpoon Mines: Mk 67 Mobile and Mk 60

Captor Torpedoes: Mk 48 wire-guided

option Countermeasures:

Mk 2 torpedo decoysWLR-12, WLR-9A Electronic countermeasures

SEAWOLF (SSN 21-23)

USS SEAWOLF -Unmatched Capability

SSN 21 - SEAWOLFCommissioned: July 1997

SSN 22 - CONNECTICUTCommissioned: December 1998

SSN 23 - JIMMY CARTERCommissioned: 2005

Fastest, Quietest and Most CapableSubmarine In The World

Fastest, Quietest and Most CapableSubmarine In The World

Seawolf Class (SSN) Dimensions: 353 x 42.3 x 35.8 ft. Displacement: 7460 tons standard

9137 tons submerged12,158 for SSN 23

Crew: 121 enlisted 12 officers Sonar:

BQQ 5D suiteTB-16 and TB-23 towed arrays

Seawolf Class Weapons Systems

SLCM: 12GDC TomahawkSSM: Tomahawk, Harpoon

Mine Capable Torpedoes: Mk 48 ADCAP wire-guided

option Countermeasures:

Mk 2 torpedo decoysWLQ-4(V)1

SDV (Swimmer-SEAL Delivery Vehicle) ASDS (Advanced Swimmer Delivery

System)

Virginia Class (SSN-774)

Virginia Class (SSN) Length: 377 feet (115 meters) Beam: 34 feet (10.4 meters) Draft: 30.5 feet (9.3 meters) Displacement: Surfaced: approx. 6,950

tons      Submerged: approx. 7,800 tons Speed: Surfaced: approx. 25

knots      Submerged: approx. 32 knots Armament: Tomahawk missiles from 12 VLS

tubes, four 533 mm torpedo tubes for Mk-48 torpedoes, Harpoon, advanced mobile mines and unmanned undersea vehicles

Crew: 113

Ohio Class(SSBN/SSGN)

Ohio Class (SSBN) Dimensions: 560 x 42 x 36.4 ft. Displacement:16,600 tons

standard 18,750 tons

submergedCrew: 160 enlisted 15-16 officers Sonar:

BQQ 5D/E Passive Search with BQQ 13BQR 15 passive towed arrayBQR 19 active navigation

Ohio Class Weapons Systems

C4 Trident I MissilesD5 Trident II Missiles

Torpedoes: Mk 48 wire-guided option Countermeasures:

Mk 2 torpedo decoysWLR-8(V)5

Ohio Class SSGN

SSN/SSGN Missions and SSBN

Intelligence, Surveillance and Reconnaissance

Mine Warfare Power Projection and Strike Warfare Landing Special Operations Forces Sea Control Strategic Deterrence

Intelligence Surveillance and Reconnaissance

Difficult to detect Capable of transmitting real-time

information ACINT and collection of tactical

information Littoral reconnaissance prior to

amphibious warfare

Strike Warfare Precision Strike on shore

based targets up to 650 nm.

Tomahawk (TLAM)

Special Operations SEAL transportation and recovery SDV ASDS SSGN

SEAL Delivery

MissionsMissions

Ship attack– Homeland Defense

Battlespace preparation– Intelligence,

Surveillance, & Reconnaissance (ISR)

SEAL Team– Insertion & extraction

Special Operations Forces (SOF)

MissionsMissions

Strategic Warfare

Support of Surface Units Highly capable surface and

subsurface interdiction platform 20% of CSG Tomahawk firepower Mine detection by UUV’s and

acoustics

Submarine Tactics:

Considerations:–Acoustic Advantage–Speed Advantage

= Tactical Advantage (yes or no)

Submarine Tactics:

Localization– Detect, Track, Classify – Operate per sensors– Maneuver to keep on beam

Attack– General due to clearances– Preferred firing position– Alertment position

Typical Deployment Cycles SSN – typical 6 month

SSBN / SSGN - ~ 112 day cycle

Future of Submarines

SSGN Class

Conformal Acoustic Velocity Sonars

(CAVES) Unmanned Undersea Vehicles

Questions?