Competing test priorities have tied up resources for MQ-9 Block 5 testing, allowing stubborn thermal and power management problems to persist on the MQ-9 Reaper, according to the Pentagon's director of operational test and evaluation. The MQ-9 Reaper is an armed, multimission, medium-altitude, long-endurance remotely piloted aircraft that the Air Force uses for both kinetic and intelligence, surveillance and reconnaissance missions. The Block 5 upgrades include an improved main landing gear, higher powered electrical system, high-definition video, encrypted datalinks and...