The first AH-1Z remanufactured "Super Cobra" attack helicopter successfully completed ground tests earlier this month at Bell Helicopter's experimental flight test facility in Arlington, TX, paving the way for its first flight test by the end of the year, the Navy announced yesterday. "This extensive first test evaluated numerous areas on the helicopter to include rotor system stability, drive system stability, drive system endurance, engine and auxiliary power unit vibration levels, and hydraulic system performance," according to the Oct. 23...