The subject of the invention is a method for fabricating the discharge end chute arrangement of a liquid-liquid extraction settling tank and the corresponding chute arrangement. As examples, each float may include a step that is forward of the location at which the bottom surface of the float intersects a line that passes through a center of gravity of the aircraft and is oriented at an angle of six degrees rearward from vertical. The radiotelephone includes a switch for producing the first and second conditions. The mattress add-on does not slip on the existing mattress because it is held tightly in place by tightening the flame-resistant covering using straps across the bottom of the existing mattress. At this time, nickel promotes the crystallization greatly, and nickel diffuses into the film.