On 12/12/2018 17:56, Jan Panteltje wrote:
[Snip]
> If it was me I would add a GPS and display speed over ground or even use that
in arbitration.
> It is a design error, and I would sue the sh*t out of Boeing if it concerned
me.
[Snip]
> Not so long ago an other passenger plane fell out of the sky near Amsterdam
airport, frozen airspeed sensor IIRC.
> Totally insane in a world with GPS.
> It is a re-occurring problem .

Speaking as both a pilot and software engineer on the A330/A340 programme.

1) Ground speed is irrelevant to flight, only navigation.
    It's airspeed which is important, and isn't measured by GPS.

2) GPS far less than perfect when used in aircraft, and is only
    ever used in addition to other navigation and precision approach
    systems.

> Some pilots are worse than bad bus drivers, and sometimes loaded with
alcohol.

Some armchair internet commentators talk a lot less sense than drunks.

---druck

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