ASN is quite remarkable, isn't it? In the spirit of full disclosure, I am a beta tester for its developer. That said, I had my first windshear alert on approach to rwy 34R at KAFW last night...incredible! I was able to "weather" the event and continue the approach...but just barely.

 

 

Nothing but a bunch of lies...

 

We all know that all of this was caused by someone not obeying the NO ELECTRONICS sign in the cabin... those cell phones interfering with the plane's electronics, you know... 

 

 

 

In all seriousness, I haven't run into windshear yet, but it would be cool to see this in action!  Thanks for posting this!

 

 

Sorry, can't resist:

 

How did you test the B777 and/or ASN then?!?  

 

 

Sorry, can't resist:
 
How did you test the B777 and/or ASN then?!?  

 

Never understood questions like this, though at least yours is a little less pointed (normally people go off on some rant about how the internal beta process is "broken").

 

There are literally hundreds of features on this aircraft.  You really expect me to test every single one, personally?

And my ASN beta testing has been focused on the accuracy of weather depiction and related parameters as opposed to its depiction of windshear while flying one specific aircraft....but then, perhaps Oliver was simply pulling our legs??

(...).but then, perhaps Oliver was simply pulling our legs??

 

 

This.   :rolleyes:

This.   :rolleyes:

 

Merrrrr...stop being sarcastic...I can't handle that...only I'm allowed to use sarcasm 

 

You got me - haha  :ph34r:

You guys have fun here!    Me too!

This scenario's windshear depiction in the vicinity of KJKA on the ASN map always got my attention during flying/skill improvement/testing in this heavy weather during last May and June.

I noticed that it just sticked near to that place in a circle of about max. 15 NM radius.

So I knew that when this long awaited WXR comes out it will be great to test it here!

On June 17th I read the PMDG announcement/confirmation of the PWS functionality while lying on the beach with my family (and my smartphone) and I had already that PWS symbol on the ASN map in front of my eyes... :rolleyes:

 

 

In all seriousness, I haven't run into windshear yet, but it would be cool to see this in action! Thanks for posting this!

 

 

Was a great pleasure to me!

BTW: for folks trying to reproduce this microburst experience it is important to say that IN FLIGHT the alert is triggered only below 1200ft radio ALT (IIRC, sorry don't have have the T7 FCOMv2 at hand right now...). The radar antenna though starts PWS scanning mode automatically when below 2300ft radio ALT (AGL).

 

First I thought that 1200ft AGL could be considerably too low, but taking a look at this accident, which I remembered incorrectly, this height seems quite sufficient if action by crew follows immediately...

 

http://www.youtube.com/watch?v=dKwyU1RwPto

http://en.wikipedia.org/wiki/Delta_Air_Lines_Flight_191

 

After this PWS became standard.

IIRC the senior pilot was just explaining the younger F/O the correct handling of approaches in microburst areas. And in addition to that a dedicated WX-station, especially put in place to observe and report microbursts, was unmanned due to lunch/break during this crash. (Or am I mixing something up here?)

 

Good to know for passengers and crews that this PWS is ment to be "always working behind the scenes"...

 

Greetings,

Claus

 

Edit: great source of learning and additional information on the above mentioned accident:

http://www.youtube.com/watch?v=FxXwqAm1a-Y

Edited July 25, 201411 yr by vr-pilot

That remembers me of testing a WXR in a RW pressurized Cessna 210 over ten years ago. The technicians had big difficulties in finding the cause of the malfunction of the aged Bendix WXR.

It took six flights until the cause was found: a combination of in flight vibration and earthing IIRC (something not yet simulated or related to ASN/PMDG  :ph34r:  )...

It was "funny" seeing that the scope showed nothing while in front of the plane was in fact "doomsday" (giant storm cells: FL340+). Or the other way around it showed a wall of echoes while turning through large sectors of wonderful blue skies...

 

So: WXR has never been easy so far but mostly for different reasons!

 

Greetings,

Claus

Makes for interesting reading, thanks for sharing and keep up the storm chasing in the 777, I'm more of a cloud chaser

ok, I read this posts and searched all over, so how you exactly create a microburst with ASN?

 

I tried all the settings :thunderstorm + severe turbulence - and still only 1 wind shear event.

 

Is there a way to force a microburst or wind shear? Please explain how.

Go to the debug section in ASN and click create microburst or windshear.

Somehow I missed this post a few months back.  ASN looks amazing.  I tried the one week trial but after seeing this, and the fact the weather is smooth, unlike OPUS makes me more convinced to buy it!

I have a question regarding wind shear warning and procedures:

 

You are on a 4 mile final, thunder storms just pulled away from the airport - you have runway in sight, tower clears you to land - you now get a wind shear warning:

How do you proceed?  Fly the missed approach procedure that will possible take you through the wind shear?

Do a 180 turn and head away?

What would the communication to tower go like?

Will they vector you away from wind shear via a 180??

if one gets a windshear warning, is the correct procedure then a go around?

ok, I read this posts and searched all over, so how you exactly create a microburst with ASN?

I tried all the settings :thunderstorm + severe turbulence - and still only 1 wind shear event.

Is there a way to force a microburst or wind shear? Please explain how.

 

 

"My trick" is to use the ASN historical weather function (which will synchronize to the date and time of fsx) and set FSX internally to:

April 30th 2014 dawn (equals 11:00:29 GMT)  

KNPA RWY25L T/O inbound KJKA RWY27

On the ASN map the PWS alert symbol is located usually in a 5 mile vicinity north or south of KJKA.

If you head into it stay at 1200ft RA (or below) to get the windshear alert. This windshear will be a microburst actually with a sudden 40kts westerly head wind, then comes the downburst portion followed by a 40 kts tailwind...

 

Others recommend:

 

Go to the debug section in ASN and click create microburst or windshear.

 

Although I never tried this, it makes sense as you may get a microburst (and a symbol on the ASN map) instantly...

 

 

You are on a 4 mile final, thunder storms just pulled away from the airport - you have runway in sight, tower clears you to land - you now get a wind shear warning:

How do you proceed? Fly the missed approach procedure that will possible take you through the wind shear?

Do a 180 turn and head away?

What would the communication to tower go like?

Will they vector you away from wind shear via a 180??

 

 

if one gets a windshear warning, is the correct procedure then a go around?

 

 

A PWS alert means "only" windshear in the first instance. The likelyhood of getting caught in a microburst is quite big though...

I am not a RW pilot (just once had a PPL), but the first thing to do in case of a PWS alert (at which your hight will always already be below 1200 ft RA (radio altitude)!) is manual flight (wings LVL, pitch 15 DEG) & manual full thrust (TO/GA) (automatics will be to slow in reaction time), abort approach (=go around), climb straight ahead initially (on RWY hdg/trk aim missed approach altitude and obey speed restrictions) and inform ATC of going around due to windshear alert. ATC will give you altitude+vector/procedure or will ask for your intentions, otherwise just follow the standard missed approach procedure... 

Because immediate action was taken before eventually being in the "head wind - downburst - tail wind"-lockup, the imminent threat is gone and so ATC/IFR procedures can be followed.

 

The voice annunciation for windshears on T/O below 1200 RA is: windshear ahead, windshear ahead.

The voice annunciation for windshears on approach below 1200 RA is: go around, wind shear ahead.

Because the "monitor radar display" annunciation and the follow up alerts are only triggered for windshears from within 3 NM or less AHEAD of the airplane's nose, it makes not much sense to deviate in course, as there might be many other windshears around you...

 

If a plane gets actually caught by "head wind - downburst - tail wind" than you will try to keep your heading anyway, as any kind of bank will reduce your lift and bring you sooner to the ground.

 

It is interesting to completely see this video:

http://www.youtube.com/watch?v=FxXwqAm1a-Y

 

The windshear/microburst explanation (starting at 10min12sec) is very impressing and informative. (E.g. the use of rudder peddals to ride the alpha floor, or better: max AoA)