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METHOD AND DEVICE FOR DETERMINING THE OPTIMAL TURN DIRECTION OF AN AIRCRAFT

  • US 20150356874A1
  • Filed: 06/03/2015
  • Published: 12/10/2015
  • Est. Priority Date: 06/06/2014
  • Status: Active Grant
First Claim
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1. A method for determining the optimal turn direction of an aircraft defined with respect to its movement, from among two directions, right and left, executed by a flight management system, the aircraft following a lateral trajectory so as to join an arrival straight oriented according to the desired direction of movement of the aircraft and charted by an angle of arrival, on the basis of a departure point and of an angle of departure defining a departure straight oriented in the direction of movement of the aircraft,the right or left direction of the optimal turn with respect to the movement of the aircraft being conventionally defined by a respectively positive or negative optimal turn sign,the said method comprising the steps:

  • determining a conventional departure sign of the departure point with respect to the oriented arrival straight, the departure sign being positive or negative when the departure point is situated respectively on the left or on the right of the oriented arrival straight,determining a centred value of an angle of change of course equal to the difference between the angle of arrival and the angle of departure referred back between −

    180° and

    +180°

    , the said centred value exhibiting a logical sign corresponding to the sign of the centred value of the angle of change of course, determining the sign of the optimal turn on the basis of the comparison between the departure sign and the logical sign, the said sign of the optimal turn defining the optimal turn direction.

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