AF 447 Thread No. 7

[RR_NDB]

Time required to "help the System"

Hi,

AZR:

They have to isolate the faulty sources to prevent the system for rejecting the only good source and using the wrong sources.

So, crew must help the System in this situation?

With good DSP processing of THREE sources (that always must be considered suspect) the crew could instead be "helped" by the System.

Sometimes (even on A/C) you use 5 redundant elements. E.G. in Airbus SAS design.