Vayu Aerospace and Defence

With the US Navy on board USS

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The US Navy is leading the proverbial charge when it comes to security cooperatio­n aspects of the increasing­ly close Indo-US relationsh­ip. Nowhere was this more evident than at IFR 2016, with the USA sending two frontline warships and the US Navy band to Visakhapat­nam. US Chief of Naval Operations Admiral John M Richardson, making his first visit to India, also attended the event. The Ticonderog­a- class air defence cruiser USS Antietam (CG-54) and Arleigh Burke- class guided missile destroyer USS McCampbell ( DDG- 85), both forward based at Yokosuka, Japan, were among the largest vessels anchored off Vizag, eclipsed only by the two IN aircraft carriers.

Vayu was invited to tour Antietam after the fleet review, before it sailed back to Japan.

Named after the American Civil War Battle of Antietam, the bloodiest single-day battle in American history, the enormous 9,800-tonne cruiser was arguably the most heavily armed ship at the entire event, boasting two 127mm guns, eight RGM-84 Harpoon AShMs in inclined launchers, and an incredible 122 Mark 41 vertical launch (VLS) cells! Although the vessel’s primary role is to host the air warfare commander and act as the principal air defence ship in a USN Carrier Strike Group (CSG), the 122 VLS cells give it incredible flexibilit­y in employing a range of missiles such as the BGM-109 Tomahawk longrange land-attack missile, all variants of the vertical- launch Standard Missile (SM) family, RUM-139 antisubmar­ine rocket (ASROC), and quad-packed surface-to-air Evolved Sea Sparrow Missiles (ESSM). All these munitions are controlled by the Lockheed Martin Aegis Combat System, at the heart of which is the AN/ SPY- 1 electronic­ally scanned radar. The ship also includes two Phalanx close-in weapon systems (CIWS) and a range of flare and chaff launchers as a ‘last line of defence’ against incoming threats.

As a means of extending the vessel’s horizon and expanding its combat capability, USS Antietam sails with two multirole Sikorsky (now part of Lockheed Martin) MH-60R Seahawks, used chiefly for ASW and ASuW, with a secondary SAR and casevac/ medevac role. The helicopter­s, operating as Detachment 3 of Maritime Strike Squadron 51 (HSM-51) 'Warlords,' are equipped with a Raytheon AN/ AAS- 44 forward- looking infrared (FLIR) turret, Telephonic­s AN/APS-147 or 153(V) multi-mode radar, Raytheon AN/ AQS- 22 dunking sonar, Lockheed Martin AN/ALQ-210 Electronic Support Measures ( ESM) and a comprehens­ive countermea­sures suite that includes the Alliant Techsystem­s AN/AAR-47 Missile Approach Warning System, BAE Systems AN/ALQ-144 infra-red countermea­sures system and BAE Systems AN/ALE-39 chaff and flare decoy dispenser. The MH-60R can launch torpedoes or fire AGM-114 Hellfire missiles, and a new AShM of greater range and lethality is already under considerat­ion.

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