S-3B VIKING - the new ASW aircraft for the Hellenic Navy ?According the media the S-3B VIKING is going to be presented to the Hellenic Navy officials ... the navy wants at least 5 aircrafts to replace the P-3B ORIONS
On February 20, 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.[1] 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.[1] As a result, crews are now usually limited to two, though three person crews are not unusual with certain missions.
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.[1]
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.
General characteristics
Crew: 4 (Pilot, 2× Naval Flight Officers, Sensor Operator/TFO)
Length: 53 ft 4 in (16.26 m)
Wingspan:
Unfolded: 68 ft 8 in (20.93 m)
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:
429 knots (493 mph, 795 km/h) at sea level
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:
10× 500 lb (227 kg) Mark 82 bombs
2× 1000 lb (454 kg) Mark 83 bombs
2× 2000 lb (908 kg) Mark 84 bombs
6× CBU-100 cluster bombs
2× Mark 50 torpedoes
4× Mark 46 torpedoes
6× mines or depth charges
2× B57 nuclear bombs
2× AGM-65E/F Maverick missiles
2× AGM-84D Harpoon missiles
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)
Upgraded on S-3B to AN/APS-137 Inverse Synthetic Aperture Radar
OR-89 forward looking infrared (FLIR) camera with 3x zoom
AN/ARS-2 sonobuoy receiver with 13 blade antennas on the airframe for precise buoy location
AN/ASQ-81 magnetic anomaly detector (MAD)
AN/ASN-92 inertial guidance system with doppler radar navigation and TACAN
Up to 62 sonobuoys.
