USAF sees “minimal” mission impact with AEHF-4 satellite launch delay

A problem with the power regulator on the Advanced Extremely High Frequency (AEHF)-4 satellite is forcing the U.S. Air Force to slip the launch of the satellite until the coming calendar year but the service says the delay will not result in a major mission impact. The target date for the for the satellite was Oct. 17, Capt. AnnMarie Annicelli, an Air Force spokeswoman, said. “The AEHF-4 launch is delayed due to an issue with a power regulator unit that was discovered in January 2017 and confirmed via testing in Apr 2017,” she said. Satellite contractor Lockheed Martin declined to comment. More

(Source: SpaceNews - Aug 5)