A small vertical speed doubt!

[TheBusFlyer]

Hi!

Ok, I am at ALT CRZ. I pull VS knob (ie. VS = 0). I then turn the knob : 200ft/min without changing the ALT. What happens?

I am at ALT CRZ. I pull VS knob (ie. VS = 0), I then turn the knob : -200ft/min without changing the ALT. What happens?

If someone could just tell me what FCU & FMA will display in both cases, It would be great!

Thanks!

 

[RotorAndWing]

Hi!

Ok, I am at ALT CRZ. I pull VS knob (ie. VS = 0). I then turn the knob : 200ft/min without changing the ALT. What happens?

I am at ALT CRZ. I pull VS knob (ie. VS = 0), I then turn the knob : -200ft/min without changing the ALT. What happens?

If someone could just tell me what FCU & FMA will display in both cases, It would be great!

Thanks!

You will see SPEED | V/S-200 | NAV |. On the FMA

FCU will display ALT of whatever your last setting was, and -200 under V/S

And you will get an ALT alert through about 250'.

 

[gkainz]

someone care to translate the above to GA speak?

 

[RotorAndWing]

someone care to translate the above to GA speak?

"You just did something you're not suppose to do".

 

[Sac Arrow]

someone care to translate the above to GA speak?

"If you're sitting down and looking at that wondering what it is, you're probably in the wrong place"

 

[Gucci Pilot]

someone care to translate the above to GA speak?

He commanded a 200 ft/min descent but didn't arm an altitude for it to capture.

 

[Greg Bockelman]

He commanded a 200 ft/min descent but didn't arm an altitude for it to capture.

In other other words, it will fly that 200 FPM right into the ground. There is no altitude protection in that scenario.

 

[deftone]

In other other words, it will fly that 200 FPM right into the ground. There is no altitude protection in that scenario.

The journalists got tired of asking questions on the germanwings crash on APC and came over here? Lol


Sent from my iPad using Tapatalk

 

[EdFred]

This should be titled "Questions from the Flight Sim Deck"

 

[TheBusFlyer]

Thanks R&W,

So you get an ALT alarm for 250 seconds, right?

Thanks

 

[RotorAndWing]

Thanks R&W,

So you get an ALT alarm for 250 seconds, right?

Thanks

No, it will alt alarm at about 250 feet from the dialed in altitude on the FCU.

 

[TheBusFlyer]

Thanks for the quick reply,

1) Won't it be MACH (above FL250, FM only computes ECON Speeds) / VS -200ft / NAV?

2) So let's say that FCU ALT = 35000ft. I will hear an ALT alarm above 35 250ft (ie.+200ft/min) and one below 34 750ft? Will I hear it till I hit the ground?

Thanks

 

[RotorAndWing]

Here's a good reference for you: www.smartcockpit.com/plane/Airbus/a320.html