ANAHEIM, April 29, 2004 - Interstate Electronics Corporation (IEC), a wholly owned subsidiary of L-3 Communications Corporation (NYSE:LLL), announced it has been awarded a twelve month, multimillion dollar contract by General Dynamics AIS, at Pittsfield, Massachusetts. Under the terms of the contract, IEC will supply two-hundred and forty-four, 18.1 inch and 15.4 inch intelligent displays for use in the launch control system aboard the Ohio Class SSGN/SSBN submarines. The displays feature a high resolution (1280 x 1024) AMLCD screen with field replaceable backlights and a high resolution infrared (IR) Touch Screen. The design is the result of a joint IEC and General Dynamics collaboration to digitize and integrate the electronic controls as part of both the Navy's Strategic Weapons System Integration and the SSGN Conversion programs. Key to the competitive selection of the IEC displays was the capability to withstand the significantly high shock and vibration levels induced in a weapons environment. The 15.4 inch display has been designed to fit in several configurations inside the submarine, including panel mount, tube mount and bulkhead mount.

The displays were built to accommodate growth by allowing for future integration of a single board computer and components, similar to the IEC Army fielded 10.4 inch Video Display used in the Stryker program. IEC was the only company that was able to show the capability during the design phase to integrate a backlight that could be replaced and installed in the application in less than 10 minutes.

IEC has specialized in the development of a series of custom and COTS intelligent displays primarily for harsh environment applications. Unique MMI features include sunlight readability, "boot kick" shock resistant screens and low light output for night operations. The displays are operational worldwide on a number of military and commercial vehicles: the Harpoon missile launcher, Knight ground vehicle, the International Space Station, Air Force Recon aircraft, the Army's recently deployed Stryker Vehicle and other applications.

These units are qualified to MIL-STD-810F (shock) and 810E (vibration) and meet EMI MIL STD-461D. The IR Touch Screen has been developed to withstand sunlight interference and meets all of the qualifications of the display. The 15.4 inch is in a sealed box while the 18.1 inch is sealed to the front panel. Both units use conductive cooling eliminating the need for noisy and failure-prone fans.

For product information please send inquiries to displays@iechome.com.

About Interstate Electronics Corporation and L-3 Communications:
Interstate Electronics Corporation (IEC), a wholly owned subsidiary of L-3 Communications Corporation (NYSE: LLL), is an engineering design, development and manufacturing company serving aerospace and defense markets. As an industry leader in military Global Positioning Systems (GPS), IEC provides GPS technology for a variety of platforms including booster rockets, cruise missiles, precision guided weapons and handheld applications. For both military and industrial applications, IEC designs and produces ruggedized panel PCs and LCD displays which support control and communications systems. The company is a successful long-term supplier of critical test instrumentation and missile tracking systems for the U.S. Navy's Fleet Ballistic Missile (FBM) weapons systems, including the Trident submarine. To learn more about IEC, please visit www.iechome.com.

Headquartered in New York City, L-3 Communications is a leading merchant supplier of secure communications systems and products, avionics and ocean products, training products, microwave components and telemetry, instrumentation, space and wireless products. Its customers include the Department of Defense, selected U.S. government intelligence agencies, aerospace prime contractors and commercial telecommunications and wireless customers.

To learn more about L-3 Communications, please visit the company's web site at www.L-3Com.com .

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995: Except for historical information contained herein, the matters set forth in this news release are forward-looking statements. The forward-looking statements set forth above involve a number of risks and uncertainties that could cause actual results to differ materially from any such statement, including the risks and uncertainties discussed in the company's Safe Harbor Compliance Statement for Forward-looking Statements included in the company's recent filings, including Forms 10-K and 10-Q, with the Securities and Exchange Commission.

For more information, contact:
Greg Martz
Marketing Manager
Interstate Electronics Corporation
Phone: (714) 758-4158
Fax: (714) 758-4148
URL: www.iechome.com