Press Release

Honeywell Completes Critical Design Review for Three Components for Military GPS Satellites

By SpaceRef Editor
August 18, 2010
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Honeywell (NYSE:HON) announced today that its On Board Computer (OBC), Reaction Wheel Assembly (RWA) and Inertial Measurement Unit (IMU), which are part of the United States Air Force (USAF) Global Positioning Satellite (GPS) III program built by Lockheed Martin, have successfully completed Critical Design Reviews (CDRs).

“Achieving the CDR milestone demonstrates that the OBC, RWA and IMU have completed a rigorous design phase and utilizes the GPS III systems engineering and program management fundamentals,” said Dave Douglass, vice president of Space, Missiles and Munitions at Honeywell Aerospace. “The OBC will run flight software that provides attitude, power, and thermal control for the GPS III space vehicle.”

The total contract value for these three components to be delivered to Lockheed Martin Space Systems, prime contractor for the GPS III program, is more than $106 million through the life of the program. Honeywell’s OBC is part of the GPS III space vehicle’s telemetry, tracking and command subsystem, and provides redundant processors utilized throughout all phases of operation including launch, transfer orbit, nominal operations and disposal. It replaces older processor technology, and is the first radiation hardened high speed processing system based on PowerPC technology designed to operate through the harsh GPS III radiation environments.

Honeywell’s RWA and IMU are part of the attitude control subsystem. The RWA provides momentum control for the space vehicle, which allows it to provide more accurate positioning to ground GPS users. Honeywell’s IMU provides attitude reference information for the space vehicle and replaces older inertial sensor technology with fiber optic gyroscopes, extending mission capability by 50 percent.

The USAF GPS provides precise timing and positioning information for military and civil users. The GPS III system, scheduled to begin launching in 2014, will provide additional signals to improve accuracy as well as anti-jamming measures crucial for the U.S. military. Honeywell has delivered five OBC engineering development units to date in support of early flight software development and subsystem integration risk reduction initiatives.

Based in Phoenix, Arizona, Honeywell’s aerospace business is a leading global provider of integrated avionics, engines, systems and service solutions for aircraft manufacturers, airlines, business and general aviation, military, space and airport operations.

Honeywell International ( is a Fortune 100 diversified technology and manufacturing leader, serving customers worldwide with aerospace products and services; control technologies for buildings, homes and industry; automotive products; turbochargers; and specialty materials. Based in Morris Township, N.J., Honeywell’s shares are traded on the New York, London, and Chicago Stock Exchanges. For more news and information on Honeywell, please visit

This release contains certain statements that may be deemed “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934. All statements, other than statements of historical fact, that address activities, events or developments that we or our management intends, expects, projects, believes or anticipates will or may occur in the future are forward-looking statements. Such statements are based upon certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. Such forward-looking statements are not guarantees of future performance, and actual results, developments and business decisions may differ from those envisaged by such forward-looking statements.

SpaceRef staff editor.