Taxiing Taxiing
One of the major differences between the operation of a seaplane and that of a landplane is the method of maneuvering the aircraft on the surface. The landplane will usually remain motionless with the engine idling, particularly with the brakes applied, but a seaplane, since it is free floating, will invariably move in some direction, depending upon the forces exerted by wind, water currents, propeller thrust, and inertia. Because a seaplane has no brakes, it is important that the pilot be familiar with the existing wind and water conditions, effectively plan the course of action, and mentally stay "ahead" of the aircraft.

   There are three positions or attitudes in which a seaplane can be moved about on the water: (1) the "idling" position, (2) the "plowing" position, and (3) the "planing" or "on the step" position (Fig. 15-4).