Abstract: An airfoil of an aircraft with an ice protection system, the airfoil having a leading edge, the ice protection system comprising a first applying mechanism for applying an ice protection fluid along at least a portion of the leading edge of the airfoil, and an ice protection fluid recovering mechanism for recovering the ice protection fluid applied by the first applying mechanism, the ice protection fluid recovering mechanism being arranged downstream of the leading edge of the airfoil. The ice protection system further comprises a second applying mechanism for applying the ice protection fluid recovered by the ice protection fluid recovering mechanism on at least one area of the airfoil arranged downstream of the leading edge of the airfoil. An aircraft may comprise at least one airfoil provided with the ice protection system. A method may be used to protect the airfoil of an aircraft from ice accumulation.

Abstract: A control device for a motor vehicle heating device is provided, a heating device having the control device, and a motor vehicle having the heating device with the control device and/or the control device. The control device is capable of actuating the heating device on the basis of an ambient temperature of the motor vehicle for operation in a first operating mode or in a second operation mode. A method for controlling a heating device for a motor vehicle includes actuating the heating device for operation in a first operating mode or in a second operating mode on the basis of an ambient temperature of the motor vehicle.