The probable cause of the American Airlines Flight 587 crash on Nov. 12, 2001, was "in-flight separation of the vertical stabilizer as a result of the loads beyond ultimate design that were created by ...

The U.S. Air Force used the T-34A Mentor (Beechcraft Model 45) for flight training in the 1950s. Credit: National Museum of the U.S. Air Force The certification standards under Federal Aviation ...