The fourth GPS IIF satellite launched in 2014—the eighth overall—has completed on-orbit checkout, joining the active 31-satellite constellation, according to a Dec. 18 Boeing release. The vehicle launched Oct. 29 and completed on-orbit checkout Dec. 12. “We made great progress this year in the quest to modernize GPS services,” said Dan Hart, vice president of government space systems for Boeing Network & Space Systems. “With two-thirds of the 12 Boeing GPS IIFs now on orbit, the constellation is setting new records for accuracy and the Boeing GPS IIF’s are consistently among the best performing.”
F-15s, F-16s, C-130s Deploy for Exercise in Poland
April 19, 2021
USAF F-15s, F-16s, and C-130s are training in Poland in an agile combat employment exercise that comes as Russia has executed a massive buildup on the border with neighboring Ukraine, though U.S. officials say the exercise was long-planned. F-15Es from the 492nd Fighter Squadron at RAF Lakenheath, England; F-16s from…