AEHF Thruster Failure Stalls Trip To Orbit

By Amy Butler

In the latest delay to the decade-long effort to field a replacement for the Milstar protected communications constellation, U.S. Air Force officials are still assessing how best to transfer the $2 billion Advanced Extremely High Frequency (AEHF) satellite into geosynchronous orbit after a disappointing problem with its liquid apogee engine.

The launch of Lockheed Martin’s first AEHF satellite took ...

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