Senior Editor Brittany Smith tested the latest crop of winter gear for trail runners to find the toughest essentials for harsh conditions. Running is a fairly minimalist sport. All things ...

The box is the aircraft’s transmission and contains five pinion gears that spin to send energy from the engine to the Osprey’s masts and rotor blades. The Air Force does not know why the piece ...

WASHINGTON--A deadly Osprey aircraft crash last November off Japan was caused by cracks in a metal gear and the pilot’s decision to keep flying rather than heed multiple warnings that he should ...