The Lockheed S-3 Viking is a four-seat, twin-engine turbofan-powered jet aircraft that was used by the U.S. Navy to identify and track enemy submarines.


Lockheed S-3 Viking "The Hoover"

The Lockheed S-3 Viking is a four-seat, twin-engine turbofan-powered jet aircraft that was used by the U.S. Navy to identify and track enemy submarines. In the late 1990s, the S-3B's mission focus shifted to surface warfare and aerial refueling. The Viking also provided electronic warfare and surface surveillance capabilities to the carrier battle group. A carrier-based, subsonic, all-weather, multi-mission aircraft with long range; it carried automated weapon systems, and was capable of extended missions with in-flight refueling. Because of the Viking's engines' low-pitched sound, it was nicknamed the "Hoover" after the vacuum cleaner brand.

 

The S-3 was retired from front-line fleet service aboard aircraft carriers by the US Navy in January 2009, with its missions being assumed by other platforms such as the P-3C Orion, Sikorsky SH-60 Seahawk, and Boeing F/A-18E/F Super Hornet. Several aircraft were flown by Air Test and Evaluation Squadron Thirty (VX-30) at Naval Base Ventura County / NAS Point Mugu, California for range clearance and surveillance operations[2] on the NAVAIR Point Mugu Range until 2016, and one S-3 is operated by the National Aeronautics and Space Administration (NASA) at the NASA Glenn Research Center

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On 4 August 1969, Lockheed's design was selected as the winner of the contest, and eight prototypes, designated YS-3A were ordered. The first prototype was flown on 21 January 1972 by military test pilot John Christiansen, and the S-3 entered service in 1974. During the production run from 1974 to 1978, a total of 186 S-3As were built.

Lockheed
S-3 Viking "The Hoover"

The S-3 is a conventional monoplane with a cantilever shoulder wing, swept at an angle of 15°. The two GE TF-34 high-bypass turbofan engines mounted in nacelles under the wings provide excellent fuel efficiency, giving the Viking the required long range and endurance, while maintaining docile engine-out characteristics

  • History

    Role  Carrier-based anti-submarine aircraft

    National origin  United States

    Manufacturer  Lockheed Corporation

    First flight  21 January 1972

    Introduction  1974
    For specifications: click here

  • Primary User

    Primary users  United States Navy (historical)

    NASA

    Produced  1974–1978

    Number built  188

     

  • Variants

    S-3A
    S-3B

    ES-3A Shadow
    US-3A (COD)
    Aladdin Viking:  Conversion of six aircraft for overland surveillance and Elint missions. May have dropped ground sensors in the Bosnian War.

     

Lockheed S-3 Viking "The Hoover"

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The Lockheed S-3 Viking is a four-seat, twin-engine turbofan-powered jet aircraft that was used by the U.S. Navy to identify and track enemy submarines.

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