Air data indicating arrangement and method for calibrating the same

A vertical take-off and landing aircraft, the aircraft comprising a helicopter comprising an air data indicating arrangement for providing information on an air speed of said vertical take-off and landing aircraft and for providing information on an altitude of said vertical take-off and landing aircraft, wherein said vertical take-off and landing aircraft comprises:

• a pitot tube device for determining a stagnation air pressure at a position of said pitot tube device and for providing pitot tube data including information on said stagnation air pressure at said position of said pitot tube device;
• and
• a static port device for determining a static air pressure at a position of said static port device and for providing static port data including information on said static air pressure at said position of said static port device,
• wherein said air data indicating arrangement is connectable to said pitot tube device for receiving said pitot tube data provided by said pitot tube device and wherein said air data indicating arrangement is connectable to said static port device for receiving said static port data provided by said static port device,
• wherein said air data indicating arrangement further comprises an air speed and altitude determination module, said air speed and altitude determination module configured to determine in real-time:
• said air speed of said vertical take-off and landing aircraft;
• and
• said altitude of said vertical take-off and landing aircraft from flight data by using a regressor obtained by training an artificial neural network with training data, said flight data including at least:
• a) said pitot tube data,
• b) said static port data,
• c) vertical speed data including information on a vertical speed of said vertical take-off and landing aircraft, and
• d) pitch attitude angle data including information on a pitch attitude angle of said vertical take-off and landing aircraft.