NASA’s Orion Crew Exploration Vehicle heat shield candidate materials have just been tested under intense heat conditions, to see how they would hold up during Orion’s return and re-entry from a lunar mission. Philip Lorenz III reports that NASA engineers who specialize in arc heater testing teamed with the Arnold Engineering Development Center in Tennessee to modify the center’s High Enthalpy Aerothermal H2 test facility to accommodate the testing.
Trainees in Basic Military Training and technical school no longer have the option to try alternate PT drills if they fail an initial assessment, according to a policy change the Air Force made in April. The move is part of a larger shift out of the classroom and into hands-on,…