The Air Force expects to adjust its plans to begin retiring KC-10s in fiscal year 2019 due to forecasted delays in the delivery of the first KC-46 tankers. The service announced earlier this month that after a recent schedule risk assessment with KC-46 prime contractor Boeing, it expects initial tanker deliveries will come at the end of this year rather than this spring, as scheduled. Those first aircraft were originally slated for delivery in August 2017. The service had planned...