In 1974 the Lockheed S-3 Viking entered service with the USN as a twin-engine jet aircraft used
for enemy submarine warfare. By the late 1990’s the role shifted to surface warfare providing the
carrier battle group with long range surveillance capabilities and aerial refueling. The S-3 was in
production from 1974 until 1978 with 186 (187) aircraft completed. Most airframes saw upgrades
to the S-3B and sixteen became ES-3A “Shadow” electronic intelligence collection aircraft. The
low pitch sound of the engines earned the S-3 the nickname “Hoover” after the vacuum cleaner.

Lockheed S-3A Viking 160124 C/N 3106 converted to a “B” spent time with VS-21 “Redtails” as
NH-701, with VS-35 “Blue Wolves” as NK-700 and with VS-22 “Swordsmen” AC-703. With VS-35
“Blue Wolves” CAG aircraft wore a unique tail paint scheme of a Blue Wolf dressed like an Old
West gunslinger wearing a holstered gun. VS-35 gave this CAG Viking a humorous Christmas
paint scheme “Santa Tracker” for their cruise in 2002. In 2005 marked as AC-703 160124 arrived
at AMARC and 4 months later was SOC.

Specifications for the Lockheed S-3 Viking
Crew – 4 / 1 x Pilot, 1 x Co-Pilot, 1 x TACCO, 1 x Sensor Operator (TFO)

Dimensions
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)

Weight
Empty – 26,581 lb   (12,057 kg)
Loaded – 38,193 lb   (17,324 kg)
Maximum Take-off – 52,539 lb   (23,831 kg)

Performance
Engines – 2 x General Electric TF34-GE-2 turbofans producing 9,275 lb   (41.26 kN) of thrust per
engine
Fuel Capacity (JP-5)
Internal – 1,933 US gal   (7,320 L)
External – 2 x 300 US gal   (1,136 L) tanks
Speed
Maximum
@ Sea Level - 493 mph   (795 km/h)
@ 20,000 ft   (6,100 m) - 514 mph   (828 km/h)
Cruise – 405 mph   (650 km/h)
Range – 3,182 miles   (5,121 km)
Ferry – 3,875 miles   (6,237 km)
Service Ceiling – 40,900 ft   (12,465 m)
Rate of Climb – 5,120 ft/min   (26 m/sec)

Armament
4 x internal and 2 external Hardpoints capable of carrying an assortment of ordnance weighing a
maximum of 4,900 lb   (2,220 kg)
Assortment of Ordnance
10 x 500 lb   (227 kg) Mark 82 bombs
2 x 1,000 lb   454 kg) Mark 83 bombs
2 x 2,000 lb   (908 kg) Mark 84 bombs
6 x CBU-100 cluster bombs
2 x Mark 50 torpedoes
4 x Mark 46 torpedoes
6 x mines or depth charges
2 x B57 nuclear bombs
2 x AGM-65E/F Maverick missiles
2 x AGM-84 Harpoon missiles
1 x AGM-84H/K SLAM-ER missile
The 2 under-wing hardpoints can hold unguided missile pods or the 300 US gal fuel tanks.

Avionics
AN/APS-116 sea search radar, maximum range 173 miles   (278 km)
S-3B upgraded to AN/APS-137 Inverse Synthetic Aperture Radar (ISAR)
OR-89 FLIR camera with 3 X zoom
AN/ARS-2 sonobuoy receiver with 13 blade antennae on the airframe for precise buoy location
Up to 60 sonobuoys (59 tactical, 1 Search and Rescue (SAR)
AN/ASQ-81 magnetic anomaly detector (MAD)
AN/ASN-92 INS with Doppler radar navigation and TACAN

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