" The government's own Pilot's Handbook of Aeronautical Knowledge says "any combination of flight control usage [below the maneuvering speed], including full deflection of the controls ... should not create an excessive air load."
From By-the-Book Pilot to Fall Guy - latimes
http://m.rockawave.com/news/2006-04-...l#.V9NXqTVrPM8
http://usread.com/flight587/Shame/default.html