Abstract: A method includes controlling an electric motor of a hybrid-electric powerplant for an aircraft using an EPC (electric powertrain controller) and controlling a heat engine of the hybrid-electric powerplant using an ECU (engine control unit). The method includes performing at least one of the following to protect the hybrid-electric powerplant: using the ECU to power down the electric motor, and/or using the EPC to power down the heat engine.

Abstract: An apparatus for recording identifying data relating to the use of a credit card, cheque or the like and for dispensing a receipt disclosing at least part of such data; the apparatus comprises a housing in which a camera is mounted for taking, through a one-way mirror, a picture of the user situated in photographic view of the housing. A height scale and other identifying data are displayed on the inner side of the mirror and are non-visible to the user but in photographic view of the camera. Activation of the apparatus is accomplished when the user inserts the credit card, cheque or the like into an appropriate slot provided in the housing and, if required, the indicated amount in a coin slot. A weight scale may also be provided to identify the weight of the user.