What flight control inputs are required to initiate a slip?

To initiate a slip in an aircraft, the appropriate flight control inputs involve lowering one wing while applying opposite top rudder pressure. This maneuver allows the aircraft to lose altitude or adjust its flight path without gaining airspeed, which is particularly useful during landing or when maneuvering in confined spaces.

By lowering one wing, you effectively create a horizontal component of lift that helps the aircraft descend in a controlled manner. Using opposite top rudder pressure counteracts the aircraft's natural tendency to roll back towards level flight, allowing for a controlled descent or horizontal movement in a specific direction. This combination of aileron and rudder inputs plays a crucial role in maintaining coordinated flight while executing the slip.

The other options do not accurately describe the control inputs necessary for a slip. Lowering both wings and pulling back on the yoke does not effectively achieve a slip, as it would lead to loss of altitude without the desired directional control. Maintaining a level attitude with ailerons only does not create the necessary condition for a slip; slips inherently involve a yawing motion facilitated by rudder inputs. Lastly, increasing throttle while banking doesn't relate to initiating a slip and can lead to unwanted climbing instead of the desired descent or directional maneuvering.