SUNNYVALE, Calif. - The fourth Advanced Extremely High Frequency (AEHF) satellite produced by Lockheed Martin [NYSE: LMT is taking shape after early deliveries of its payload and propulsion core. AEHF-4, expected to launch in 2017, will enable the constellation to reach full operational capability.<br />
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The propulsion core manufactured by Lockheed Martin and payload produced by Northrop Grumman arrived at the AEHF integration facility in Sunnyvale, Calif., earlier in the year. Both ...This story is related to the following:Satellites