Embodiments of the present invention include an aircraft with at least one fuselage, a wing, a power plant coupled to the at least one fuselage, a shroud surrounding a propeller of the power plant, and at least two floats coupled to the wing. In some embodiments, each float may further comprise a step positioned forward of a line that is at least 5 degrees rearward of a vertical line passing through a most aft empty weight center of gravity. In some embodiments, each float comprises a forward portion that is positioned forward of the step, wherein a ski surface is coupled to the forward portion, and an aft portion that is located aft of the step, wherein the aft portion of each float is configured to be wetted at taxiing speed. A rudder may be coupled to the aft portion. Each float may also include a retractable wheel and landing gear, wherein the wheel is preferably positioned on the line that is at least 5 degrees rearward of a vertical line passing through a most aft empty weight center of gravity.