ARINC and COMSAT Mobile Launch Newest Aeronautical Mobile Satellite Services.

Business Editors

ANNAPOLIS, Md. & BETHESDA, Md.--(BUSINESS WIRE)--March 22, 2001

Aero- I & H+ Services Offer Improved Voice, Fax, and Data

Communications for Small to Large Aircraft

ARINC Incorporated of Annapolis, Maryland, and COMSAT Mobile Communications (CMC) have implemented two new commercial aeronautical satellite communications services for the busy North Atlantic (Europe - United States) and the Pacific Ocean air corridors.

The newest commercial offerings, Aero-I and H+, accommodate the growing demand for satellite voice and data communications service by passengers and crew, among a wide range of commercial, cargo, government, and business aircraft. The weight, size, and cost of onboard Aero-I equipment make it suitable for installation on smaller, medium-haul aircraft.

Aero-H+ service also can be acquired by upgrading Aero-H equipment currently in use on larger, long-haul aircraft. Both services make more efficient use of satellite resources, and as a result, prices for the services are more economical.

Using Aero-I and Aero-H+ services, passengers will be able to phone the office or home and send fax messages while en route to their international destinations. Safety of flight and cockpit operations will also be enhanced by the availability of Aero-I and Aero-H+ services.

"ARINC is committed to providing a full spectrum of global satellite services to the airline industry," said Carl Wheatley, director of ARINC's InFlight Communications Service. "Agreements for worldwide Aero-I and H+ service are complete, with service available today for the majority of the world's air traffic, from Asia across the Pacific, the Americas, and east across the Atlantic through Europe. We will complete coverage for the remaining area this summer."

"Aero-I and H+ services offer ideal satellite communications solutions that fulfill the requirements of many sectors of the aviation industry," said Kathryn Y. Holman, vice president and general manager of COMSAT Mobile Communications. "Our new services support safety, flight, and cockpit operations, as well as administrative, passenger voice, and data applications. Offering Aero-I and H+ services demonstrate CMC's commitment to the aeronautical industry by expanding aeronautical applications to provide a full array of high-quality communications that are economical, dependable, and easy to use."

ARINC Incorporated develops and operates communications and information processing systems for the aviation and transportation industries and provides systems engineering and integration solutions to government and industry. ARINC is ISO 9001 certified. Founded in 1929 to provide reliable and efficient radio communications for the airlines, ARINC is headquartered in Annapolis, Md., with more than 3,000 employees worldwide.

COMSAT Mobile Communications, a business unit of Lockheed Martin Global Telecommunications, provides maritime, aeronautical, and land mobile satellite data, high-speed data, Internet access, and voice communications services to customers worldwide via the Inmarsat satellite system.

Lockheed Martin Global Telecommunications, a wholly owned subsidiary of Lockheed Martin Corporation (NYSE:LMT), delivers secure, reliable, advanced-technology products and services to help enterprise customers leverage their telecommunications and information technology assets. LMGT has annual revenues in excess of $1 billion and employs 4,000 personnel worldwide with major points of presence in North and South America, Europe, and Asia.