Sunday, February 18, 2007

Arrow TMD

Israel began work on a potential theater missile defense (TMD) system in 1986, with the signing of a Memorandum of Understanding (MOU) with the United States. While the threat posed by ballistic missiles has been a concern for Israel since the mid-1980s, Iraqi ballistic missile attacks during the Gulf War underscored the danger posed by the buildup of missile technology in the region. Given the lack of available Israeli resources for TMD development, the United States agreed to co-fund and co-develop an indigenously-produced Israeli TMD system. In 1988, the US and Israel began what was to evolve into a three-phase program to develop the ARROW series of Anti-Tactical Ballistic Missiles (ATBMs).
Arrow II is intended to satisfy the Israeli requirement for an interceptor for defense of military assets and population centers and will support US technology base requirements for new advanced anti-tactical ballistic missile technologies that could be incorporated into the US theater missile defense systems. The Arrow missile, a joint international project with Israel, is a long-range interceptor that offers the United States technology infusion, including lethality data; development of optical window technology applicable to both THAAD and Navy Area Defense programs; data from stage separation at high velocities and dynamic pressures; and, interoperability development that will allow synergistic operations of Arrow with US TMD systems, if required in future contingencies.
The Citron Tree battle management center, built by Tadiran, guides the Arrow 2 interceptor, developed by Israel Aircraft Industries' MLM Division. The entire anti-tactical ballistic missile project is called Homa.
The Arrow 2 system can detect and track incoming missiles as far way as 500 km and can intercept missiles 50-90 km away [some sources suggest the engagement range is 16 to 48km]. The Arrow 2 uses a terminally-guided interceptor warhead to destroy an incoming missile from its launch at an altitude of 10 to 40km at nine times the speed of sound. Since the missile does not need to directly hit the target--detonation within 40-50 meters is sufficient to disable an incoming warhead. The command and control system is designed to respond to as many as 14 simultaneous intercepts.
Comprised of three phases, this intiative began with the Arrow Experiments project (Phase I) that developed the preprototype Arrow I interceptor. Arrow I provided the basis for an informed GOI engineering and manufacturing decision for an ATBM defense capability.
The Phase II ARROW Continuation Experiments (ACES) Program was a continuation of Phase I, and consisted of critical lethality tests using the Arrow I interceptor with the Arrow II warhead and the design, development and test of the Arrow II interceptor. The first phase of ACES, completed in the third quarter FY 94, featured critical lethality tests using the Arrow I interceptor with the Arrow II warhead. Since program initiation in 1988, Israel successfully improved the performance of its pre-prototype Arrow I interceptor to the point that it achieved a successful intercept and target destruction in June 1994. The ACES resulted in a successful missile target intercept by a single stage ARROW-1 interceptor. The second phase of ACES consisted of the design, development and test of the Arrow II interceptor, which achieved two successful intercepts of simulated SCUD missiles on August 20, 1996 and March 11, 1997. The ACES Program ended in FY 1997, upon the completion of ARROW intercept tests.
The third phase is the Arrow Deployability Project (ADP), which began in FY96, aimed at integrating the entire ARROW Weapon System (AWS) with a planned User Operational Evaluation System (UOES) capability. Continuing through 2001, the ADP will be the cornerstone for US/Israeli BMD cooperation. The Arrow Deployability Program involves a total commitment of $500 million over five years, with $300 million contributed by Israel and $200 million from the United States. This will allow for the integration of the jointly developed Arrow interceptor with the Israeli developed fire control radar, launch control center and battle management center. This project will pursue the research and development of technologies associated with the deployment of the Arrow Weapon System (AWS) and will permit the GOI to make a decision regarding deployment of this system without financial participation by the US beyond the R&D stage. This effort will include system-level flight tests of the US-Israeli cooperatively developed Arrow II interceptor supported by the Israeli-developed fire control radar and fire control center.

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