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McDONNELL DOUGLAS DELIVERS ITS FIRST TOMAHAWK CRUISE MISSILE WITH BLOCK III IMPROVEMENTS

 ST. LOUIS, March 9 /PRNewswire/ -- McDonnell Douglas (NYSE: MD) delivered its first Tomahawk cruise missile with Block III system improvements to the U.S. Navy today from its Florida Missile Production facility in Titusville, Fla.
 Developed by McDonnell Douglas Aerospace, the Block III upgrades include the addition of a Global Positioning System (GPS) receiver and antennae, a guidance system upgrade, and other improvements. McDonnell Douglas was awarded the Block III development contract in December 1988; the Navy completed operational test flights of Block III Tomahawks in February 1992.
 The Block III upgrades were developed for land-attack Tomahawks with either improved unitary warheads or submunition-dispensing warheads. The improved unitary warhead, developed by the Navy, is smaller than the current 1,000-pound warhead but provides the same lethality, while allowing the missile to carry more fuel.
 GPS supplements the existing Terrain Contour Matching (TERCOM) systems as an alternative means for missile navigation. An upgrade of the Digital Scene Matching Area Correlator, DSMAC IIA, provides additional computing power that improves operational flexibility and accuracy.
 Also included in the Block III upgrades is time-of-arrival control, which allows the Navy to control the arrival of the Tomahawk missile at the target at a pre-designed time to enable improved coordination with strikes by manned aircraft.
 A Williams International 402 turbofan engine will replace the current engine, providing a 19 percent increase in thrust and a 2 percent decrease in fuel consumption. Although not part of the Block III upgrade program, this improvement will be included in all future Block III missiles to provide a significant increase in range and flight performance. The Block III changes can be fully remanufactured to all Tomahawk conventional land-attack variants.
 Engineering and development of the Block III missile upgrades were performed by McDonnell Douglas Aerospace in St. Louis.
 McDonnell Douglas and Hughes Missile Systems Co. both produce Tomahawks under an annual competitive procurement program.
 In January, McDonnell Douglas was awarded a $201.6 million contract to build 120 Tomahawks and remanufacture an additional 120 missiles already in inventory into Block III Tomahawks. This contract represents 60 percent of the Navy's fiscal year 1993 procurement of Tomahawks and 70 percent of the depot maintenance work.
 This contell Douglas Aerospace received a $179 million contract to build 114 Tomahawks, including options to remanufacture 140 current missiles to incorporate them with Block III upgrades. This contract represented 65 percent of the Navy procurement for fiscal year 1992; the business also received a contract for 65 percent of the fiscal year 1992 depot maintenance work.
 McDonnell Douglas continues to be the sole provider of Tomahawk Weapon Control Systems, operational flight software, mission planning, as well as the systems engineering and integration agent of the Tomahawk weapon system.
 -0- 3/9/93
 /CONTACT: Jim Schlueter of McDonnell Douglas Aerospace, 314-233-6232/
 (MD)


CO: McDonnell Douglas Aerospace; McDonnell Douglas ST: Missouri IN: ARO SU:

EH -- LA011 -- 4489 03/09/93 11:32 EST
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Date:Mar 9, 1993
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