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Forum: Tech Log

31st Oct 2016, 15:46

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

I am not sure we are talking about the same...

I am not sure we are talking about the same thing. In the unreliable airspeed case above FL250, one ADR is kept on to keep you in ALTN law. I see no great rush to descend.

Forum: Tech Log

31st Oct 2016, 14:16

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

Procedure for unreliable airspeed is to turn all...

Procedure for unreliable airspeed is to turn all automatics off. That includes the auto-pilot. RVSM is a minor consideration. Fly the aeroplane. When safe to do so communicate with ATC.
I hope you...

Forum: Tech Log

30th Oct 2016, 12:43

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

I was referring to Vilas who seems to like the...

I was referring to Vilas who seems to like the descending bit.

Forum: Tech Log

30th Oct 2016, 09:21

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

Letting go of the stick would have saved 447. So...

Letting go of the stick would have saved 447. So what are you going to do after descending 5 min. If you couldn't fly the aircraft before what happens in those magic 5 min? Divine intervention? You...

Forum: Tech Log

30th Oct 2016, 08:21

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

Icing of probes. They had they same probes and...

Icing of probes. They had they same probes and mod state as the Air France A340.The procedure isn't very hard. Its just takes a little bit of time to read though and think about. In the old days we...

Forum: Tech Log

30th Oct 2016, 04:27

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

An EY 346 lost airspeed in the cruise between...

An EY 346 lost airspeed in the cruise between Australia and the middle east some years ago. The pilots did the pilot thing, and maintained a safe flight path while sorting it out. It cleared after 5...

Forum: Tech Log

30th Oct 2016, 04:22

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

The aeroplane does not know you can't read the...

The aeroplane does not know you can't read the airspeed. And continues to fly just fine unless you do something silly. Closing the levers and descending is great right up until you hit the ground. ...

Forum: Tech Log

29th Oct 2016, 02:35

Replies: 32

BUSS FL250

Views: 19,073

Posted By donpizmeov

When all three ADRs are switched off you go into...

When all three ADRs are switched off you go into direct law. Ever tried high altitude flight in direct law? This is non reversible. Leaving at least one ADR on allows ALTN law, and recovery of...

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