Pilatus Aircraft says it has struck an agreement with Lockheed Martin to pursue an F-35 focused upgrade to the training system built around its PC-21. The deal, announced March 25, will see the U.S.

The U.S. Air Force Air Mobility Command has suggested their KC-135 Stratotanker fleet may serve beyond 2050 with a life extension and upgrade program. Almost 70 years after the type's first flight, ...