Originally Posted by
HazelNuts39
sensor-validation;
IAS reflects the difference between pitot pressure and static pressure. Both sources are 'disturbed' at extreme angles of AoA and sideslip. I wonder if BEA has taken possible static source errors into account when quoting altitudes. These should be checked with IRS and/or GPS data.
@10,000 ft/min I don't think any correction to text required! But sure any indication will be unsteady and oscillating depending on which port in use pointing which way and how in detail they are combined/ filtered. Google finds this schematic from globalsim.web:-
