Air Data Computer
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Air Data Computer
An abstract from 'ACE THE TECHNICAL PILOT INTERVIEW'
The advantages of the ADC system is that the data calculated can be feed to the following:
1. Autopilot
2. Flight director system
3. Flight management system
4.Ground proximity system
5. Navigation aids
6. Instrument comparison systems
What is number '6' relating to?
Thanks
The advantages of the ADC system is that the data calculated can be feed to the following:
1. Autopilot
2. Flight director system
3. Flight management system
4.Ground proximity system
5. Navigation aids
6. Instrument comparison systems
What is number '6' relating to?
Thanks
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On the Airbus the Air Data Reference (ADR) is fed into multiple systems, to assess a number of parameters. Each Elevator and Aileron Computer (ELAC) and Flight Augmentation Computer (FAC), receive data for the Air Data References, to which there are 3 and they compare these values.
If there is an erroneous reading from say 1 ADR the ELAC and FAC will reject these inputs, and provide a FAULT message to the crew. In a nutshell these comparisons provide protection for things like unreliable airspeed, and allows the crew to switch to an alternate source as a back up.
Hope that helps.
If there is an erroneous reading from say 1 ADR the ELAC and FAC will reject these inputs, and provide a FAULT message to the crew. In a nutshell these comparisons provide protection for things like unreliable airspeed, and allows the crew to switch to an alternate source as a back up.
Hope that helps.
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Hi CAT3C thanks for the reply
On the Airbus the Air Data Reference (ADR) is fed into multiple systems, to assess a number of parameters. Each Elevator and Aileron Computer (ELAC) and Flight Augmentation Computer (FAC), receive data for the Air Data References, to which there are 3 and they compare these values.
If there is an erroneous reading from say 1 ADR the ELAC and FAC will reject these inputs, and provide a FAULT message to the crew. In a nutshell these comparisons provide protection for things like unreliable airspeed, and allows the crew to switch to an alternate source as a back up.
Hope that helps.
What is the difference between and air data computer and air data referance, because as far as i can work out they both do the same thing, only that the air data reference measures the aircraft's position?
Is there two air data reference installed on a aircraft?
On the Airbus the Air Data Reference (ADR) is fed into multiple systems, to assess a number of parameters. Each Elevator and Aileron Computer (ELAC) and Flight Augmentation Computer (FAC), receive data for the Air Data References, to which there are 3 and they compare these values.
If there is an erroneous reading from say 1 ADR the ELAC and FAC will reject these inputs, and provide a FAULT message to the crew. In a nutshell these comparisons provide protection for things like unreliable airspeed, and allows the crew to switch to an alternate source as a back up.
Hope that helps.
What is the difference between and air data computer and air data referance, because as far as i can work out they both do the same thing, only that the air data reference measures the aircraft's position?
Is there two air data reference installed on a aircraft?
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air data reference measures the aircraft's position
Aircraft position is calculated via Inertial Reference UnitS among others such as GPS.
To answer your question,if for example the air data computer of Captain gets info different from the ADC of the FO,the crews will be alerted as for example speed disagree as mentionned above.
The 737 has two AIr data computers linked to two Inertial reference units called ADIRUs.
Last edited by de facto; 9th Dec 2012 at 01:01.
