Beyond Patriot? The Multinational MEADS Air Defense Program

MEADS: air view

The Medium Extended Air Defense System (MEADS) program aimed to replace Patriot missiles in the United States, the older Hawk system in Germany, and Italy’s even older Nike Hercules missiles. MEADS will be designed to kill enemy aircraft, cruise missiles and UAVs within its reach, while providing next-generation point defense capabilities against ballistic missiles. MBDA’s SAMP/T project would be its main competitor, but MEADS aims to offer improved mobility and wider compatibility with other air defense systems, in order to create a linchpin for its customers’ next-generation air defense arrays.

The German government finally gave their clearance in April 2005, and in June 2005 MEADS International (MI) formally signed a contract worth approximately $3.4 billion to design and develop the tri-national MEADS system. In February 2011, however, events began to signal the likely end of the program. This DID FOCUS Article covers that program, and has been converted into a free-to-view article.

E-2D Hawkeye: The Navy’s New AWACS

Northrop Grumman’s E-2C Hawkeye is a carrier-capable “mini-AWACS” aircraft, designed to give long-range warning of incoming aerial threats. Secondary roles include strike command and control, land and maritime surveillance, search and rescue, communications relay, and even civil air traffic control during emergencies. E-2C Hawkeyes began replacing previous Hawkeye versions in 1973. They fly from USN and French carriers, from land bases in the militaries of Egypt, Japan, Mexico, and Taiwan; and in a drug interdiction role for the US Naval Reserve. Over 200 Hawkeyes have been produced.

The $17.5 billion E-2D Advanced Hawkeye program aims to build 75 new aircraft with significant radar, engine, and electronics upgrades in order to deal with a world of stealthier cruise missiles, saturation attacks, and a growing need for ground surveillance as well as aerial scans. It looks a lot like the last generation E-2C Hawkeye 2000 upgrade on the outside – but inside, and even outside to some extent, it’s a whole new aircraft.

THAAD: Reach Out and Touch Ballistic Missiles

THAAD: In flight

The Terminal High Altitude Area Defense (THAAD) system is a long-range, land-based theater defense weapon that acts as the upper tier of a basic 2-tiered defense against ballistic missiles. It’s designed to intercept missiles during late mid-course or final stage flight, flying at high altitudes within and even outside the atmosphere. This allows it to provide broad area coverage against threats to critical assets such as population centers and industrial resources as well as military forces, hence its previous “theater (of operations) high altitude area defense” designation.

This capability makes THAAD different from a Patriot PAC-3 or the future MEADS system, which are point defense options with limited range that are designed to hit a missile or warhead just before impact. The SM-3 Standard missile is a far better comparison, and land-based SM-3 programs will make it a direct THAAD competitor. So far, both programs remain underway.

AN/TPY-2: America’s Portable Missile Defense Radar

AN/TPY-2

The THAAD Ground-Based Radar (GBR), now known as the AN/TPY-2, is an X-Band, phased array, solid-state, long-range air defense radar. It was developed and built by Raytheon at its Andover, MA Integrated Air Defense Facility, as the main radar for the US Army’s THAAD late midcourse ballistic missile defense system.

For THAAD, targeting information from the TPY-2 is uploaded to the missile immediately before launch, and continuously updated in flight via datalinks. The TPY-2 is always deployed with THAAD, but it can also be used independently as part of any ABM (anti ballistic missile) infrastructure. That flexibility, and ease of deployment, is carving out an expanding role for the TPY-2/ “FBX” that reaches beyond THAAD. If a recent NRC report is adopted, that role will expand again to include national-scale ballistic missile defense. Hence this separate article to cover its ongoing development.

Missile Defense: Next Steps for the USA’s GMD

GMD launch, 2001

The USA’s Ground-Based Midcourse Defense (GMD) program uses land-based missiles to intercept incoming ballistic missiles in the middle of their flight, outside the atmosphere. The missiles are currently based at 2 sites in the USA: 4 at Vandenberg AFB in California, and 20 (eventually 26) at Fort Greely in Alaska.

The well-known Patriot missiles provide what’s known as terminal-phase defense options, while longer-reach options like the land-based THAAD perform terminal or descent-phase interceptions. Even so, their sensors and flight ranges are best suited to defense against shorter range missiles launched from in-theater.

In contrast, GMD is designed to defend against intercontinental ballistic missiles (ICBMs). It depends on tracking that begins in the boost phase, in order to allow true mid-course interception attempts in space, before descent or terminal phase options like THAAD and then Patriot would be tried. In order to accomplish that task, GMD missiles must use data feeds from an assortment of long-range sensors, including satellites like SBIRS and DSP, some SPSS/BMEWS huge early-warning radars, and even the naval SBX radar.

Floatin’ Smokey: The USA’s SBX Radar

SBX-1, Pearl Harbor

As rogue state proliferation by the likes of North Korea made missile defense a growing priority for nations including the USA, Japan, and Israel, the USA began to look at the linchpin of any defense: powerful radars that could both track ballistic missiles, and guide interceptors. The USA has its BMEWS tracking system, but that would not serve. America’s Safeguard ABM system was dismantled long ago – though Russia still maintains its counterpart System A-135 network around Moscow. Something new would be needed.

Enter Raytheon’s new XBR radar, based on an SBX-1 platform that looks a lot like a mobile oil drilling rig. Basing the radar at sea offers numerous advantages. One is the obvious ability to move the radar as threats materialize, allowing much greater coverage with fewer radars. Another is the ability to protect allies, without having to invest in expensive systems whose regional capabilities and value to the USA could be put at risk by the decisions of a single foreign government. In exchange for this freedom from political interference, of course, the designers must contend with nature’s interference in the stormy Pacific.

Boeing SBX system is linked to its land-based GMD (Ground-based Mid-course Defense) missile system but can also operate with other naval and land elements.

CEC: Cooperative Engagement for Fleet Defense

CEC Concept
(click to enlarge)

Cooperative Engagement Capability (CEC) is the US Navy’s secret weapon. Actually, it’s not so secret. It’s just that its relatively low price means often leads people to overlook the revolutionary change it creates for wide-area fleet air defense, up to and including anti-ballistic missile capability.

CEC is far more than a mere data-sharing program, or even a sensor fusion effort. The concept behind CEC is a sensor netting system that allows ships, aircraft, and even land radars to pool their radar and sensor information together, creating a very powerful and detailed picture that’s much finer, more wide-ranging, and more consistent than any one of them could generate on its own. The data is then shared among all ships and participating systems, using secure frequencies. It’s a simple premise, but a difficult technical feat. With huge implications.

This DID FOCUS Article explains those mechanics and implications. It will also track ongoing research, updates, and contracts related to CEC capabilities from 2000 forward.

Japan’s Fleet BMD Upgrades

JS Kongou

The JMSDF (Japanese Maritime Self Defence Force) is working closely with the USA on missile defense activities. Air Force cooperation has also improved by leaps and bounds, allowing for much closer coordination with the USA in all aspects of operations – including missile tracking.

Japanese involvement includes modification and improvements to the SM-3 long-range anti-air/ABM missile. This weapon will form the outer layer of Japan’s ABM system, deployed from its current fleet of 4 Kongo Class AEGIS destroyers, and their 2 larger Atago Class successors. The inner layer will consist of land-based Japan Self Defense Forces PAC-3 Patriot missiles, and together they will form the initial ballistic missile defense for mainland Japan.

SM-3 BMD, in from the Sea: EPAA & Aegis Ashore

Land-based SM-3 concept

SM-3 Standard missiles have been the backbone of the US Navy’s ballistic missile defense plans for many years now, and are beginning to see service in the navies of allies like Japan. Their test successes and long range against aerial threats have spawned a land-based version, which end up being even more important to the USA’s allies.

In July 2008 the US Missile Defense Agency began considering a land-based variant of the SM-3, largely due to specific requests from Israel. Israel currently fields the medium range Arrow-2 land-based ABM(Anti-Ballistic Missile) system, and eventually elected to pursue the Arrow-3 instead of SM-3s. Once the prospect had been raised, however, the US government decided that basing SM-3 missiles on land was a really good idea. The European Phased Adaptive Approach to missile defense is being built around this concept, and other regions could see similar deployments.

JLENS: Co-ordinating Cruise Missile Defense – And More

JLENS Concept

Experiences in Operation Iraqi Freedom demonstrated that even conventional cruise missiles with limited reach could have disruptive tactical effects, in the hands of a determined enemy. Meanwhile, the proliferation of cruise missiles and associated components, combined with a falling technology curve for biological, chemical, or even nuclear agents, is creating longer-term hazards on a whole new scale. Intelligence agencies and analysts believe that the threat of U.S. cities coming under cruise missile attack from ships off the coast is real, and evolving.

Aerial sensors are the best defense against low-flying cruise missiles, because they offer far better detection and tracking range than ground-based systems. The bad news is that keeping planes in the air all the time is very expensive, and so are the aircraft themselves. As cruise missile defense becomes a more prominent political issue, the primary challenge becomes the development of a reliable, affordable, long-flying, look-down platform. One that can detect, track and identify incoming missiles, then support over-the-horizon engagements in a timely manner. The Joint Land Attack Cruise Missile Defense Elevated Netted Sensor (JLENS) certainly looked like that system, but the Pentagon has decided to end it.