S-3B Viking: Aircraft profile

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The S-3B Viking is an all-weather, carrier-based jet aircraft, providing protection against hostile surface combatants while also functioning as the Carrier Battle Groups' primary overhead/mission tanker.

S-3B Viking: Western Pacific Ocean (Oct. 20, 2003) -- An S-3B Viking assigned to the “Dragonfires” of Sea Control Squadron Twenty Nine (VS-29), flies over the Western Pacific Ocean during flight operations.S-3B Viking: Western Pacific Ocean (Oct. 20, 2003) -- An S-3B Viking assigned to the “Dragonfires” of Sea Control Squadron Twenty Nine (VS-29), flies over the Western Pacific Ocean during flight operations.

Extremely versatile, the aircraft is equipped for many missions, including day/night surveillance, electronic countermeasures, command/control/communications warfare, and search and rescue.

Features

The S-3B's high-speed computer system processes and displays information generated by its targeting-sensor systems. These systems include; Inverse/Synthetic Aperture Radar (ISAR/SAR), infrared (IR) sensor and an Electronic Support (ESM) system. To engage and destroy targets, the S-3B Viking employs an impressive array of airborne weaponry including the AGM 84 Harpoon Anti-Ship Missile, AGM 65 Maverick IR missile and a wide selection of conventional bombs and torpedoes. Future Viking aircraft will also have a control capability for the AGM 84 Standoff Land Attack Missile Extended Range (SLAM-ER) missile. The S-3B provides the fleet with a very effective fixed-wing, "over-the-horizon" aircraft to combat the significant and varied threats presented by modern maritime combatants.

S-3B Viking: At sea aboard USS Theodore Roosevelt (CVN 71) Dec. 3, 2002 -- A Landing Systems Technician watches an S-3B “Viking” from the “Scouts” of Sea Control Squadron Two Four (VS-24) make its final approach to the flight deck during carrier certifications. The Roosevelt is conducting sea trials in preparation for her next regularly scheduled deployment in support of Operation Enduring Freedom. U.S. Navy photo by Photographer's Mate Airman Todd M. Flint.S-3B Viking: At sea aboard USS Theodore Roosevelt (CVN 71) Dec. 3, 2002 -- A Landing Systems Technician watches an S-3B “Viking” from the “Scouts” of Sea Control Squadron Two Four (VS-24) make its final approach to the flight deck during carrier certifications. The Roosevelt is conducting sea trials in preparation for her next regularly scheduled deployment in support of Operation Enduring Freedom. U.S. Navy photo by Photographer's Mate Airman Todd M. Flint.

Background

Derived from the S-3A and formerly configured for anti-submarine warfare (ASW), the S-3B of the 1990s has evolved into a premier surveillance and precision-targeting platform for the Navy along with modern precision-guided missile capabilities.

In 1999, the Navy removed the acoustic ASW and aerial mining systems from the S-3B, which was initially designed to counter the massive Soviet naval threat, but retained its surveillance, anti-surface warfare and critical aerial refueling roles. With the retirement of the A-6E in 1997, the S-3B became the sole organic refueling platform in the aircraft carrier task force until the operational debut of the F/A-18E/F Super Hornet in 2002. During Operation Enduring Freedom in late 2001 and throughout 2002, forward-deployed S-3B Viking tankers flew more than 200 percent over their normal flight hours underway, enabling air wing strike fighters to reach their assigned kill boxes and return safely to the aircraft carrier from Afghanistan.

During Operation Iraqi Freedom, a VS-38 S-3B made history on March 25, 2003, with the first combat launch of a laser-guided Maverick missile, which severely damaged a naval target in the Tigris River near Basra, Iraq. Operational tempo during Iraqi Freedom was relentless and all S-3Bs available were positioned on the carrier deck. Sortie rates of 30 missions a day were not uncommon for squadrons operating from carriers in the eastern Mediterranean and the Persian Gulf. By 2004, the S-3B community has completed installation of modern and reliable upgrades to its communications, navigation and weapons systems, as well as installation of the advanced AYK-23 computer, significantly reducing operating costs and increasing combat capabilities.

S-3B Viking: Atlantic Ocean (July 13, 2004) - During an air-power demonstration performed for visiting Moroccan military officials an S-3B Viking assigned to the "Maulers" of Antisubmarine Thirty Two (VS-32) releases flares near USS Enterprise (CVN 65). The ship is participating in Majestic Eagle, a multinational exercise being conducted off the coast of Morocco. The exercise demonstrates the combined force capabilities and quick response times of the participating naval, air, undersea and surface warfare groups. Countries involved in the U.S.-led exercise include the United Kingdom, Morocco, France, Italy, Portugal, Spain, and Turkey. Truman's participation in Majestic Eagle is part of her scheduled deployment supporting the Navy's new fleet response plan (FRP) Summer Pulse 2004, the simultaneous deployment of seven carrier strike groups (CSGs), demonstrating the ability of the Navy to provide credible combat across the globe, in five theaters with other U.S., allied, and coalition military forces. U.S. Navy photo by Photographer's Mate Airman Jhi L. ScottS-3B Viking: Atlantic Ocean (July 13, 2004) - During an air-power demonstration performed for visiting Moroccan military officials an S-3B Viking assigned to the "Maulers" of Antisubmarine Thirty Two (VS-32) releases flares near USS Enterprise (CVN 65). The ship is participating in Majestic Eagle, a multinational exercise being conducted off the coast of Morocco. The exercise demonstrates the combined force capabilities and quick response times of the participating naval, air, undersea and surface warfare groups. Countries involved in the U.S.-led exercise include the United Kingdom, Morocco, France, Italy, Portugal, Spain, and Turkey. Truman's participation in Majestic Eagle is part of her scheduled deployment supporting the Navy's new fleet response plan (FRP) Summer Pulse 2004, the simultaneous deployment of seven carrier strike groups (CSGs), demonstrating the ability of the Navy to provide credible combat across the globe, in five theaters with other U.S., allied, and coalition military forces. U.S. Navy photo by Photographer's Mate Airman Jhi L. Scott

Also in 2004, the Viking community commenced execution of the S-3 “Sundown Plan,” a retirement plan highlighted by a phased withdrawal from active service by 2009. As carrier air wings are equipped with two Super Hornet squadrons, the respective S-3 squadron will be deactivated. VS-29 and VS-38 were deactivated in April 2004, followed by Japan based, VS-21 in January 2005. VS-35 and VS-30 also retired in 2005 while VS-33, VS-41 were deactivated in September 2006. The remaining squadrons VS-22, 24, 31, and 32 will be deactivated incrementally by February 2009. As of Oct. 1, 2006, about 30 S-3Bs remained in active service.

Lockheed Martin’s Full-Scale Fatigue Test to determine the aircraft’s fatigue life expended and areas of structural concern was completed in 2004. The results demonstrated that the basic service life of the airframe could be as high as 23,000 flight hours. The average number of flight hours on all S-3Bs is currently less than 13,000 flight hours. In March 2006, CNAF approved the modification of 13 S-3Bs to carry the Low Altitude Navigation Targeting Infrared for Night (LANTIRN) system, obtained from retiring F-14D Tomcat aircraft, to fulfill NTISR mission requirements in support of Global War on Terror (GWOT). Additionally, a video data transmission system has been installed to facilitate the sending of all aircraft sensor video to ground units equipped with the Rover III tactical ground station. One prototype has been delivered to VS-32 and is presently deployed. The remainder of the installs LANTIRN and video transmission systems will be completed by early 2007, enabling the S-3B Viking to remain a viable multi-mission platform until 2009.

S-3B Viking: Persian Gulf (Oct. 6, 2005) - An S-3B Viking, assigned to the “Scouts” of Sea Control Squadron Two Four (VS-24), is launched off the flight deck of the Nimitz-class aircraft carrier USS Theodore Roosevelt (CVN 71). Roosevelt and embarked Carrier Air Wing Eight (CVW-8) are currently underway on a regularly scheduled deployment conducting maritime security operations. U.S. Navy photo by Photographer's Mate 3rd Class Michael D. ColeS-3B Viking: Persian Gulf (Oct. 6, 2005) - An S-3B Viking, assigned to the “Scouts” of Sea Control Squadron Two Four (VS-24), is launched off the flight deck of the Nimitz-class aircraft carrier USS Theodore Roosevelt (CVN 71). Roosevelt and embarked Carrier Air Wing Eight (CVW-8) are currently underway on a regularly scheduled deployment conducting maritime security operations. U.S. Navy photo by Photographer's Mate 3rd Class Michael D. Cole

General Characteristics

Primary Function: Force Protection, Organic overhead/mission tanking.

Contractor: Lockheed Martin Aeronautics.
Date Deployed: 1975
Unit Cost: $27 million.
Propulsion: Two TF-34-GE-400B turbofan engines (9,275 pounds of thrust each)
Length: 53.3 feet
Height: 22.75 feet
Wingspan: 68.7 feet
Weight: Empty, 26,650 pounds; maximum takeoff, 52,539 pounds
Airspeed: 450 knots/0.79 Mach.
Ceiling: 40,000 feet.
Range: 2,300-plus nautical miles
Crew: One pilot, two naval flight officers

Armament: AGM-84H/K SLAM-ER, AGM-84 Harpoon and AGM-65 Laser Maverick missiles, bombs, rockets, Mk46/Mk50 torpedoes.

Source: US Navy

Detailed background:

Source: wikipedia.org

The Lockheed S-3 Viking is a jet aircraft originally used by the United States Navy to identify, track, and destroy enemy submarines. In the late 1990s, the S-3B's mission focus shifted to surface warfare and aerial refueling. After the retirement of the A-6 Intruder and A-7 Corsair II, the Viking was the only airborne refueling platform organic to the Carrier Air Wing(s) until the fielding of the F/A-18E/F Super Hornet.

It also provides electronic warfare and surface surveillance capabilities to the carrier battle group. A carrier-based, subsonic, all-weather, multi-mission aircraft with long range, it operates primarily with carrier battle groups as an in-flight tanker. It carries automated weapon systems, and is capable of extended missions with in-flight refueling. Because of the engines’ high-pitched sound, it is nicknamed the "Hoover" after the brand of vacuum cleaner.

Development

The S-3 Viking was designed by Lockheed with the assistance from Ling-Temco-Vought (LTV) and Univac Federal Systems to fit the United States Navy VSX (Heavier-than-air, Anti-submarine, Experimental) requirement for a replacement for the piston-engined Grumman S-2 Tracker. Since Lockheed had no experience in building carrier-based aircraft, LTV was responsible for construction of the folding wings and tail, the engine nacelles, and the landing gear which was derived from A-7 Corsair II (nose) and F-8 Crusader (main). Univac built the onboard computers which integrated input from sensors and sonobuoys.

The first prototype flew on 21 January 1972 and the S-3 entered service in 1974. During the production run from 1974 to 1978, a total of 186 S-3As were built.

Design

The S-3 is a conventional monoplane with a high-mounted cantilever wing, swept 15°. The two GE TF-34 high-bypass turbofan engines mounted in nacelles under the wings provide exceptional cruise efficiency compared to turbojets or earlier turbofans.

The aircraft can seat four crew members with the pilot and the copilot/tactical coordinator (COTAC) in the front of the cockpit and the tactical coordinator (TACCO) and sensor operator (SENSO) in the back. Entry is by an entry door / ladder which folds out of the side of the fuselage. All crew members sit on upward-firing Douglas Escapac zero-zero ejection seats. At the end of the 1990s the sonar operators were removed from the crew. In the tanking crew configuration, the S-3B typically flies with only a crew of two (pilot and COTAC). The wing is fitted with leading edge and Fowler flaps. Spoilers are fitted to both the upper and the lower surfaces of the wings. All control surfaces are actuated by dual hydraulically boosted irreversible systems.

The aircraft has two underwing hardpoints that can be used to carry fuel tanks, general purpose and cluster bombs, missiles, rockets, and storage pods. It also has four internal bomb bay stations that can be used to carry general purpose bombs, torpedoes, and special stores (B57 and B61). Fifty-nine sonobuoy chutes are fitted, as well as a dedicated Search and Rescue (SAR) chute. The S-3 is fitted with the ALE-39 countermeasure system and can carry up to ninety rounds of chaff, flares, and expendable jammers (or a combination of all) in three dispensers. A retractable magnetic anomaly detector (MAD) Boom is fitted in the tail. In the late 90s, the MAD Boom was removed from the aircraft when the S-3B's role was changed from Anti-Submarine Warfare (ASW) to Anti-Surface Warfare (ASuW).

Operational history

On 20 February 1974, the S-3A officially became operational with the VS-41 Shamrocks Fleet Replacement Squadron. The first operational cruise took place in 1975 with VS-21 Fighting Redtails aboard USS John F. Kennedy (CV-67).

Starting in 1991, some of these were upgraded to the S-3B with a number of new sensors, avionics, and weapons systems, including the capability to launch the AGM-84 Harpoon anti-ship missile. The S-3B can also be fitted with "buddy stores" external fuel tanks that allow the Viking to refuel other aircraft. Sixteen S-3As were converted to ES-3 Shadows for carrier-based electronic intelligence (ELINT) duties. One aircraft, designated US-3A, was also converted for utility and limited cargo duty. Plans were also made to develop the KS-3A carrier-based tanker aircraft to replace the retired KA-6 but this program was ultimately cancelled after the conversion of just one early development S-3A.

Since the submarine threat has been perceived as reduced, the Vikings have had the majority of their antisubmarine warfare equipment removed and are now used primarily for sea surface search, sea and ground attack, over-the-horizon targeting, and aircraft refueling. As a result, crews are now usually limited to two, though three person crews are not unusual with certain missions. It has been used as a jet VIP transport, as was the case of bringing George W. Bush aboard the Abraham Lincoln.

A number of recent upgrade programs have been implemented. These include the Carrier Airborne Inertial Navigation System II (CAINS II) upgrade, which replaced older inertial navigation hardware with ring laser gyroscopes and additional GPS systems, and added electronic flight instruments (EFI). The Maverick Plus System (MPS) added the capability to employ the AGM-65E laser-guided or AGM-65F infrared-guided AGM-65 Maverick air-to-surface missile, and the AGM-84H/K Stand-off Land Attack Missile Expanded Response (SLAM/ER). The SLAM/ER is a GPS/inertial/infrared guided cruise missile that can be controlled by the aircrew in the terminal phase of flight if an AWW-13 data link pod is carried by the aircraft.

The S-3B saw extensive service during the 1991 Gulf War, performing attack, tanker, and ELINT duties, and launching ADM-141 TALD decoys. The aircraft also participated in the Yugoslav wars in the 1990s and in Operation Enduring Freedom in 2001.

Though once considered being replaced by Common Support Aircraft, the original plan failed to materialize. As the surviving S-3 airframes were forced into sundown, a Lockheed Martin full scale fatigue test was performed and extended the service life of the aircraft by approximately 11,000 hours. The current Navy plans call for the retirement of all Vikings by 2009 so new aircraft can be introducted to recapitalize the aging fleet inventory. Their missions will be spread among the other battlegroup fixed-wing and rotary-wing aircraft.

S-3B Viking: At sea aboard USS Abraham Lincoln (CVN 72) Aug. 28, 2002 -- An S-3B "Viking" assigned to the "Blue Wolves" of Sea Control Squadron Three Five (VS-35), launches from catapult three during flight operations aboard USS Abraham Lincoln. The S-3B Viking is an all weather, carrier-based jet aircraft, providing protection against hostile surface combatants while also functioning as the Carrier Battle Groups' primary overhead-mission tanker. Extremely versatile, the aircraft is equipped for many missions, including, day and night surveillance, electronic countermeasures, command and control, communications warfare, and search and rescue (SAR). Lincoln and her embarked Carrier Air Wing Fourteen (CVW-14) are transiting to the Arabian Gulf to conduct combat missions in support of Operation Enduring Freedom. U.S. Navy photo by Photographer's Mate Airman Philip A. McDaniel.S-3B Viking: At sea aboard USS Abraham Lincoln (CVN 72) Aug. 28, 2002 -- An S-3B "Viking" assigned to the "Blue Wolves" of Sea Control Squadron Three Five (VS-35), launches from catapult three during flight operations aboard USS Abraham Lincoln. The S-3B Viking is an all weather, carrier-based jet aircraft, providing protection against hostile surface combatants while also functioning as the Carrier Battle Groups' primary overhead-mission tanker. Extremely versatile, the aircraft is equipped for many missions, including, day and night surveillance, electronic countermeasures, command and control, communications warfare, and search and rescue (SAR). Lincoln and her embarked Carrier Air Wing Fourteen (CVW-14) are transiting to the Arabian Gulf to conduct combat missions in support of Operation Enduring Freedom. U.S. Navy photo by Photographer's Mate Airman Philip A. McDaniel.

ES-3A Shadow

The ES-3A Shadow ES-3A was designed as a carrier-based, subsonic, all-weather, long-range, electronic reconnaissance (ELINT) aircraft. All 16 aircraft were modified S-3 Viking airframes, which were modified with numerous additional antennas and antenna housings. The Shadow replaced the EA-3B Skywarrior, and entered fleet service in 1993.

The ES-3A operated primarily with carrier battle groups, providing organic ‘Indications and Warning’ support to the group and joint theater commanders. It carried an extensive suite of electronic sensors and communications gear, replacing the S-3’s submarine detection, armament, and maritime surveillance equipment with avionics racks accommodating the ES-3A’s sensors. These modifications had minor impact on airspeed, reducing its top rated speed from 450KTAS to 405KTAS but had no noticable impact on the aircraft's range and actually increased its rated loiter time. Because these aircraft were standoff indications and warnings platforms and were never intended to be part of an ingress strike package, this new speed limitation was considered insignificant.

The first ES-3A was delivered in 1991, entering service after two years of testing. The Navy established 2 squadrons of eight aircraft each. The VQ-5 Sea Shadows were originally based in Agana, Guam but later moved to NAS North Island, San Diego, California. The VQ-6 Black Ravens were originally based at NAS Cecil Field, Jacksonville, Florida, but later moved to NAS Jacksonville, approximately 15 miles away. Each squadron deployed a detachment aboard each U.S. aircraft carrier - a Detachment typically consisted of two aircraft, 10 Officers, and 55 Enlisted and contained four complete aircrews.

In addition to their warning and reconnaissance roles, and their extraordinarily stable handling characteristics and range, Shadows were a preferred recovery tanker (aircraft that provide refueling for returning aircraft). They averaged over 100 flight hours per month while deployed. Excessive utilization caused earlier than expected equipment replacement when Naval aviation funds were limited, making them an easy target for budget-driven decision makers. In 1999, both ES-3A squadrons and all 16 aircraft were decommissioned. The ES-3A inventory was placed in Aerospace Maintenance and Regeneration Group (AMARG) storage.

History in Combat

In March of 2003, during Operation IRAQI FREEDOM, an S-3B Viking from Sea Control Squadron 38 (The "Red Griffins") launched from USS Constellation. The crew successfully executed a time sensitive strike and fired a laser-guided Maverick missile to neutralize a significant Iraqi naval and leadership target in the port city of Basra, Iraq.

This was the first and only time in its long and distinguished operational history that the S-3B Viking had been employed overland on an offensive combat air strike and the first time it launched a laser-guided Maverick missile in combat.

As "Navy One"

On 1 May 2003, US President George W. Bush rode in the co-pilot seat of a Viking that landed on USS Abraham Lincoln, where he delivered his "Mission Accomplished" speech announcing the end of major combat in the 2003 invasion of Iraq. This was the only Navy flight to date to use the callsign "Navy One".

The aircraft that President Bush rode in was retired shortly after and on July 15th 2003 was accepted as an exhibit at the National Museum of Naval Aviation in Pensacola, Florida.

S-3B Viking: The Mediterranean Sea (Mar. 14, 2003) -- Lieutenant Junior Grade Chad C. Vinette, an S-3B pilot assigned to the "Checkmates" of Sea Control Squadron Two Two (VS-22) receives fuel during an aerial refueling operation with an U.S. Air Force Stratotanker KC-135. Aerial tankers enable aircraft to remain airborne and on station for extended periods of time, completing additional refueling operations as required. Truman and Carrier Air Wing Three (CVW-3) are currently on deployment conducting missions in support of Operation Enduring Freedom. U. S. Navy photo by Photographer's Mate 1st Class Michael W. Pendergrass.S-3B Viking: The Mediterranean Sea (Mar. 14, 2003) -- Lieutenant Junior Grade Chad C. Vinette, an S-3B pilot assigned to the "Checkmates" of Sea Control Squadron Two Two (VS-22) receives fuel during an aerial refueling operation with an U.S. Air Force Stratotanker KC-135. Aerial tankers enable aircraft to remain airborne and on station for extended periods of time, completing additional refueling operations as required. Truman and Carrier Air Wing Three (CVW-3) are currently on deployment conducting missions in support of Operation Enduring Freedom. U. S. Navy photo by Photographer's Mate 1st Class Michael W. Pendergrass.

Variants

‎S-3A

First production version, 186 built.

S-3B

Upgraded avionics, AN/APS-137 inverse synthetic aperture radar, Joint Tactical Information Distribution System, AGM-84 Harpoon launch capability, first flight 13 September 1984, 119 converted from S-3As.

ES-3A Shadow

ELINT aircraft, AN/APS-137 inverse synthetic aperture radar, first flight 15 May 1991, 16 converted from S-3A.

KS-3A

Proposed dedicated air tanker with fuel capacity of 4,382 US gal (16,600 L), one converted from YS-3A, later converted to US-3A.

KS-3B

Proposed air tanker based on S-3B and utilizing the buddy refueling system, not built.

US-3A

S-3A modified for carrier onboard delivery, capacity for six passengers or 4,680 lb (2,120 kg) of cargo, retired in 1998.

Alladin Viking

Classified modifications, used in the Bosnian War

Beartrap Viking

S-3Bs fitted with still-classified modifications.

Callypso Viking

Proposed anti-smuggling variant, not built.

Gray Wolf Viking

One aircraft fitted with AN/APG-76 radar in a modified cargo pod under the wing. Also dubbed SeaSTARS in reference to E-8 Joint STARS.

Orca Viking

Avionics testbed.

Outlaw Viking

One S-3B fitted with Over-the-horizon Airborne Sensor Information System (OASIS III), returned to regular S-3B in 1998. This particular Viking is now on display at the San Diego Aircraft Carrier Museum, located on the decommissioned USS Midway (CV-41).

NASA Viking

One aircraft was transformed into a state-of-the-art NASA research aircraft. The Navy's Fleet Readiness Center - Southeast and a Boeing facility in Fla. enhanced the plane by adding commercial satellite communications, global positioning navigation and weather radar systems. They installed research equipment racks in what was once the plane's bomb bay. NASA's S-3B Viking is equipped to conduct science and aeronautics missions, such as environmental monitoring, satellite communications testing and aviation safety research. Operators

United States

* United States Navy
* NASA

Specifications (S-3A)

Data from Standard Aircraft Characteristics

General characteristics

* Crew: 4 (Pilot, 2× Naval Flight Officers, Sensor Operator/TFO)
* Length: 53 ft 4 in (16.26 m)

* Wingspan:

o Unfolded: 68 ft 8 in (20.93 m)
o Folded: 29 ft 6 in (9.00 m)

* Height: 22 ft 9 in (6.93 m)
* Wing area: 598 ft² (55.56 m²)
* Empty weight: 26,581 lb (12,057 kg)
* Loaded weight: 38,192 lb (17,324 kg)
* Max takeoff weight: 52,539 lb (23,831 kg)
* Powerplant: 2× General Electric TF34-GE-2 turbofans, 9,275 lbf (41.26 kN) each
* *Internal fuel capacity: 1,933 US gal (7,320 L) of JP-5 fuel
* External fuel capacity: 2x 300 US gal (1,136 L) tanks

Performance

* Maximum speed:

o 429 knots (493 mph, 795 km/h) at sea level
o Mach 0.79, 450 knots (514 mph, 828 km/h) at 20,000 ft (6,100 m)

* Cruise speed: 350 knots (405 mph, 650 km/h)
* Stall speed: 97 knots (112 mph, 180 km/h)
* Combat radius: 2,765 nm (3,182 mi, 5,121 km)
* Service ceiling 40,900 ft (12,465 m)
* Rate of climb: 5,120 ft/min (26.0 m/s)
* Wing loading: 68.5 lb/ft² (334 kg/m²)
* Thrust/weight: 0.353

Armament

* Up to 4,900 lb (2,220 kg) on four internal and two external hardpoints, including:

o 10× 500 lb (227 kg) Mark 82 bombs
o 2× 1000 lb (454 kg) Mark 83 bombs
o 2× 2000 lb (908 kg) Mark 84 bombs
o 6× CBU-100 cluster bombs
o 2× Mark 50 torpedoes
o 4× Mark 46 torpedoes
o 6× mines or depth charges
o 2× B57 nuclear bombs
o 2× AGM-65E/F Maverick missiles
o 2× AGM-84D Harpoon missiles
o 1× AGM-84H/K SLAM-ER missile

The two underwing hardpoints can also be fitted with unguided rocket pods or 300 US gal (1,136 L) fuel tanks.

Avionics

* AN/APS-116 sea search radar, maximum range 150 nm (173 mi, 278 km)

o Upgraded on S-3B to AN/APS-137 Inverse Synthetic Aperture Radar
o OR-89 forward looking infrared (FLIR) camera with 3x zoom
o AN/ARS-2 sonobuoy receiver with 13 blade antennas on the airframe for precise buoy location
o AN/ASQ-81 magnetic anomaly detector (MAD)
o AN/ASN-92 inertial guidance system with doppler radar navigation and TACAN
o Up to 62 sonobuoys

More photos: S-3B Viking photo gallery

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