 Prior to that, ailerons were often referred to as rudders, their older technical sibling, with no distinction between their orientations and functions, or more descriptively as "horizontal rudders" (in French, "gouvernails horizontaux").Among the earliest printed aeronautical use of 'aileron' was that in the French aviation journal "L'Aérophile" of 1908.Ailerons had more or less completely supplanted other forms of lateral control, such as wing warping, by about 1915, well after the function of the rudder and elevator flight controls had been largely standardised.