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different warnings?

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Old 9th Jul 2002, 20:30
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Question different warnings?

Would a kind soul somewhere be willing to use a bit of precious time to explain the difference between the following warnings to me?
  • sink rate warning
  • terrain warning
  • glideslope warning

Many thanks!
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Old 10th Jul 2002, 11:18
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Talking

You've actually heard those warnings recently Flappy?
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Old 13th Jul 2002, 21:55
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Thank you ASFKAP, much apprecaited.

No EggSplat, I haven't.
But in an attempt to improve mutual understanding on safety related matters between cockpit and cabin crew, the comp has decided to put Chief Wagon Dragons on the mailing list for a magazine that upto now catered only for pilots.
Laudable initiative, very interesting, discusses all the incidents comp AC have been involved in over past period. It also features a longish article that focusses on one particular matter of interest to both ourselves and the pilots. (on board fires in this issue for example)
But at times it contains word/phrases that are a mystery to the uninitiated like myself.

That's where this latest crop came from.
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Old 13th Jul 2002, 23:17
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Flaps, in addition to the excellent information ASFKAP gave, I've know of a website that explains all of the GPWS/EGPWS warnings. Now if I can just find it .... (I'll edit the post with the link when I do)

Ok, here's a link to a very simple graphic which shows some different modes of a GPWS system. It's not the link I'm looking for, but it at least explains what the sounds (shown in quotes) mean. (I just realized that it doesn't show Mode 7, which is the "Windshear" mode, but you can still get a good idea of the system.)

Still looking for the other website ....

One note about the Glideslope warning. There may be times when it may go off and things are actually okay. It is often airport- or approach- specific, and it's the exception as opposed to the rule, but it's important to know, so you don't get unnecessarily alarmed if you hear "Glideslope" booming from the cockpit.

To clarify the above paragraph, some warnings/alerts require immediate and definite action, while others may require only a slight correction (possibly imperceptible to those outside the flight deck).

Last edited by McD; 14th Jul 2002 at 00:36.
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Old 14th Jul 2002, 00:23
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Wink

OK Flaps, easily fixed:
http://www.simphonics.com/library/Wave%20Files/GPWS/
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Old 14th Jul 2002, 00:39
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Try this for more details

GPWS
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Old 14th Jul 2002, 00:44
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Thumbs up

Now there's a great website, Paper Tiger!

It's perfect for showing the "downside" of Mode 3 / Altitude Loss after Takeoff, because "Don't Sink" sounds like "Don't Think" !!

(Click here to hear it)

(Is this along the same lines of reasoning that Airbus uses when calling their pilots "Retard"??)

Last edited by McD; 14th Jul 2002 at 15:27.
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Old 16th Jul 2002, 11:07
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You people are a collective goldmine of information! .
This is what makes me PPRuNe.

McD, as you know, pre 9/11 we used to fly with the cocpit door not only unlocked, but wide open.
So all of us FAs were very used to hearing various alerts emanate fromt he pointy-end. Both during the pre-flight stage and in actual flight. And after 20 years of seeing the pilots deal with them calmly and capably, there isn't a lot which will alarm old-timers like me.

As a matter of fact, hearing a terrain warning has a very different effect on me. I started my career on the DC-9 in december. Dutch december wx is horrible; cold, rainy and gusty. AC freezing early in the morning, while we were shiveringly doing our pre flights, the TERRAIN boomed out of the cockpit.
And then after take-off all of a sudden we were in this serene, sunny world of blue skies and fluffy clouds below us. The sun slanting through the portholes, the cabin suddenly a warm and cozy place.
All these nice smiling passengers, me in a spiffy uniform handing out food&drinks and having lots of fun in this new shiny world of aviation.
Hearing a terrain warning always takes me back to those days and puts a big smile on my face.

Thanks for all the links people; much appreciated!

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Old 16th Jul 2002, 11:14
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falps you are a one! Let's just hope the guys up the pointy end don't smile and get a nice warm fuzzy feeling when they hear 'TERRAIN!'
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Old 17th Jul 2002, 15:04
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BFU, unlike your aging FA, your budding pilot is seldomly prone to flights of warm fuzziness.
If said state is at all reached, it usually involves copious amounts of the amber nectar and not metallic voices shrieking at him/her in the bolted cage.

So rest assured dear friend, all is well.
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Old 18th Jul 2002, 19:03
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For a different outlook on GPWS, have a look here
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