Owego, NY, 06/03/2008 -- Lockheed Martin's [NYSE: LMT] two operational Joint Light Tactical Vehicle (JLTV) prototypes have successfully surpassed 15,000 total test miles. More than half of the combined mileage has been conducted off-road, simulating mission conditions.

Lockheed Martin began by thoroughly testing each component in the laboratory and has since been testing the entire JLTV system on the road. Testing at a variety of facilities across the country, today the prototypes are accumulating 400 to 500 miles of secondary and off-road testing daily.

These two vehicles have been subjected to the most grueling conditions, said Louis DeSantis, vice president and general manager of Ground Vehicle Systems at Lockheed Martin Systems Integration - Owego. This extensive testing demonstrates Lockheed Martin's commitment to developing mature, low-risk, diverse technology for the JLTV program.

The Lockheed Martin family of vehicles emphasize attributes that are vital to the warfighter, such as superior mobility; weapons and countermeasures to neutralize threats; and a new armor composition combined with an innovative hull and structural design for protection.

Unveiled in October 2007, Lockheed Martin's first prototype, the Combat Tactical Vehicle Payload Category B, is designed as an infantry carrier and features Lockheed Martin's patented air suspension system.

In February 2008, Lockheed Martin unveiled its second prototype, the Utility Vehicle Light Payload Category C model. This variant is designed with a focus on payload and is used to carry personnel, general cargo and ammunition, but can also be configured to carry an S250 shelter.

The Lockheed Martin-led JLTV Team includes:

• BAE Systems Mobility & Protection Systems, providing advanced armor solutions and production facilities for high volume assembly;
• Alcoa Defense, supplying materials experience, design services and aluminum components that give the vehicle its structural strength at reduced weight; and
• JWF - Defense Systems, offering state-of-the-art machining and cost-effective fabrication.

Lockheed Martin serves as the prime contractor and design agent, providing systems engineering, platform integration, design expertise, and program and supply chain management.

Headquartered in Bethesda, Md., Lockheed Martin employs about 140,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. The Corporation reported 2007 sales of $41.9 billion.