摘要:
A system and method are provided for calculating Mach number and true airspeed without reference to data from a pitot static sensor. The true airspeed and Mach number are calculated using the altitude information from GPS, IRS, Radio Altimeter and other onboard sensors other than the air data computer (ADC). The computed true airspeed or Mach number could be used to confirm the ADC information, or in lieu of the ADC information when the ADC information is unreliable or unavailable.
摘要:
An avionics system comprising a primary airspeed data source and a flight management computer is provided. The primary airspeed data source is configured to calculate a primary airspeed. The flight management computer is configured to use airspeed as an aid to control an aircraft, wherein the flight management computer is further configured to determine an alternative airspeed for use by the flight management computer as an aid to control an aircraft when the primary airspeed is unavailable.
摘要:
A system for validating ground determination of gross weight of aircraft includes sensor(s) that generates information regarding ground determination of gross weight while parked at parking bay; processing device that receives information regarding ground determination of gross weight of the aircraft from sensor(s); and computer memory communicatively coupled to processing device. Processing device determines ground determination based on information regarding ground determination of gross weight generated by sensor. Processing device determines gross weight in air after takeoff based on indicated airspeed, angle of attack, and thrust applied to aircraft. Processing device determines error between ground determination and air determination of gross weight taking into account reduction in gross weight due to fuel consumed since receiving ground determination. Processing device updates information regarding relationship between ground determination and air determination of gross weight. Computer memory stores updated information regarding relationship for use next time aircraft parks at parking bay.