Could USS San Antonio be the basis for BMD’s future?

Ballistic missile defense has become a growing concern. Russia has been modernizing not only its strategic forces, but has also deployed the Iskander tactical ballistic system. China has the DF-21 anti-ship ballistic missile. The need clearly exists for new assets to stop these missiles — or at least lessen the virtual attrition they would inflict.

Huntington Ingalls Industries has a solution — but this solution comes from a surprising basis. The company, which builds everything from Arleigh Burke-class destroyers to amphibious assault ships, has proposed using the hull of the San Antonio-class landing platform dock amphibious ship to mount.

A close look at the radars and the VLS of a model of a proposed ballistic missile defense ship from Huntington Ingalls Industries displayed at the SeaAirSpace 2017 Expo. (Photo by Harold Hutchison)

The design is still a concept — there’s a lot of options in terms of what radars to use, and how the exact weapons fit would work. The model shows at the SeaAirSpace Expo 2017 featured 96 cells in the Mk 41 Vertical Launch System, or the equivalent of a Burke-class destroyer. That’s a low-end version, though. A handout provided says the system can hold as many as 288 cells. This is 225 percent of the capacity of a Ticonderoga-class cruiser, and 300 percent of an Arleigh Burke-class destroyer’s capacity.

Of course, the Mk41 can hold a number of missiles, including the RIM-66 SM-2, the RIM-174 SM-6, the RIM-161 SM-3 — all of which can knock down ballistic missiles. For local defense, a quad-pack RIM-162 Evolved Sea Sparrow Missile is an option. The Mk 41 also can launch the RUM-139 Vertical-Launch ASROC and the BGM-109 Tomahawk. In other words, this ballistic missile defense ship can do more than just play defense — it can provide a hell of an offensive punch as well.

USS Hopper (DDG 70) fires a RIM-161 SM-3 missile in 2009. (U.S. Navy photo)

The handout also notes other armament options, including a rail gun, two Mk 46 chain guns, advanced radars, launchers for the RIM-116 Rolling Airframe Missile, and .50-caliber machine guns. Yes, even in a super-modern missile-defense vessel, Ma Deuce still has a place in the armament suite. No matter how you look at it, that is a lot of firepower.

The propulsion options include the diesel powerplants used on the San Antonio, providing a top speed of 22 knots. Using an integrated power system similar to that on the destroyer USS Zumwalt (DDG 1000) would get a top speed of about 29 knots, according to a Huntinton Ingals representative at the expo.

A look at the sern of a model of a proposed ballistic missile defense ship displayed at SeaAirSpace2017 by Huntington Ingalls Industries. The well deck from the San Antonio is converted into a hangar – reminiscent of late World War II surface combatants. (Photo by Harold Hutchison)

The ship is still just a concept, but with President Trump proposing a 350-ship Navy, that concept could be a very awesome reality.

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