Hand flying Airbus 330 in turbulence
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Joined: Jul 2002
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From: A Marriott somewhere
Hand flying Airbus 330 in turbulence
Can anyone tell me what it is like to hand fly a 330 in severe turbulence at FL350?
There is Youtube video of an Airbus 319/320/321 doing a low level go around on a bumpy day. It looks like there i some pilot induced wing movement due to the pilot getting tossed around.
On a related note I think enhanced vision systems should be mandatory. I fly along the equator on a regular basis, and FLIR and radar together is ten times better than radar alone. There is no way I will accidentally end up in a CB using this equipment.
There is Youtube video of an Airbus 319/320/321 doing a low level go around on a bumpy day. It looks like there i some pilot induced wing movement due to the pilot getting tossed around.
On a related note I think enhanced vision systems should be mandatory. I fly along the equator on a regular basis, and FLIR and radar together is ten times better than radar alone. There is no way I will accidentally end up in a CB using this equipment.
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From: UK
Last edited by Ten West; 6th June 2009 at 07:00. Reason: spellnig mshtyk
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From: A Marriott somewhere
Evs/flir
Unless you are actually in the clouds lightning is not that terribly bright, not a problem. I can also display my FLIR and HUD on my heads down screens if i don't want to look outside
The flir keeps you out of the tunderstorms in the first place. It can not replace the radar, it complements it nicely though. (Once you are in the clouds the flir is useless).
CB is the meteorological abbreviation for Cumulonimbus. Cumulus means big and billowy, nimbus means rain. Also referred to as cloud nine. (The ninth group of clouds).
The flir keeps you out of the tunderstorms in the first place. It can not replace the radar, it complements it nicely though. (Once you are in the clouds the flir is useless).
CB is the meteorological abbreviation for Cumulonimbus. Cumulus means big and billowy, nimbus means rain. Also referred to as cloud nine. (The ninth group of clouds).
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Greetings,
besides the Lightning, you are supposed to see through the clouds when you use FLIR, so using it would not enable you to see the CBs or any other clouds in fact
, because it will be as if there where no clouds at all, which is not what we want 
besides the Lightning, you are supposed to see through the clouds when you use FLIR, so using it would not enable you to see the CBs or any other clouds in fact
, because it will be as if there where no clouds at all, which is not what we want
Joined: Sep 2006
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From: any town as retired.
FLIR creep
FLIR has its uses, but it only shows a temperature difference.
I use it on climb out, as an visual on the Head up or head down display to show the location of the actual convective activity, rather than try to only use the radar, which as we all should now by now, reflects the moistire droplets that are in the atmosphere. Radar is also only as good as the operator, and the wave length that is in use. The wave length is optimised for the large water droplets that make up the core of any convective activity.
FLIR will show the VISIBLE tops of cloud.
I almost lost control of the G550 last year trying to outclimb a large build up near KL, just ran out of power (unusual), airspeed, and control at the same time....
I had Radar,FLIR,lightning, and the full moon to help, but still almost lost it.....for those who are interested the eyebrows were fully visible, and did their job.
Lastly, still more creep, in the G550 as I hope the new bus have is a method of downloading "real time" radar and overlay this data on my PFD, I can also overlay the current "forecast" winds at that level.
Combined with all other toys, i can still mess up.
I use it on climb out, as an visual on the Head up or head down display to show the location of the actual convective activity, rather than try to only use the radar, which as we all should now by now, reflects the moistire droplets that are in the atmosphere. Radar is also only as good as the operator, and the wave length that is in use. The wave length is optimised for the large water droplets that make up the core of any convective activity.
FLIR will show the VISIBLE tops of cloud.
I almost lost control of the G550 last year trying to outclimb a large build up near KL, just ran out of power (unusual), airspeed, and control at the same time....
I had Radar,FLIR,lightning, and the full moon to help, but still almost lost it.....for those who are interested the eyebrows were fully visible, and did their job.
Lastly, still more creep, in the G550 as I hope the new bus have is a method of downloading "real time" radar and overlay this data on my PFD, I can also overlay the current "forecast" winds at that level.
Combined with all other toys, i can still mess up.
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Joined: Jul 2002
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From: A Marriott somewhere
See through clouds?
The flir only senses temperature differences. If you are in a cloud you only see a blur on the screen. Like gulfstreamaviator said it is a great complement to the radar as the cloud is a different temeperature than the air around it. Great for avoiding buildups, especially at night.
I am still wondering if anyone has hand flown a sidestick through moderate or severe turbulence. There is someone over on the main AF447 thread bringing that up now, but I still haven't heard from anyone with any experience with this.
I am still wondering if anyone has hand flown a sidestick through moderate or severe turbulence. There is someone over on the main AF447 thread bringing that up now, but I still haven't heard from anyone with any experience with this.
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Greetings,
I saw demo flight using EVS Enhanced Visual System, enabling to see the runway through the clouds , using HUD as the interface, with this set up the aircraft will be able to descent to 100 feet on a NPA.
So there is obviously something I dont understand.
I saw demo flight using EVS Enhanced Visual System, enabling to see the runway through the clouds
, using HUD as the interface, with this set up the aircraft will be able to descent to 100 feet on a NPA. So there is obviously something I dont understand.
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From: Germany
Its all to do with this:
Water vapour (actually the OH- bonds) absorb a LOT of emmissions in the IR band, but Visible light is attenuated more. Thus, in fog, you cannot see the runway due to fog due to severe attenuation, however, the runway is still visible at short ranges using IR.
In cloud, the proportion of Water per m^3 is much higher than in fog, thus much higher attenuation and thus far shorter range.
Outside of cloud, there is no attenuation, every object by its inherent nature emits IR (yes, even you) and this makes FLIR very useful in picking out CBs in the dark. Unfortunately, CBs emit little visible light other than the flash of lightning. Otherwise they would be glowing in the dark.
I use my NVGs more enroute than I do at the pointy end; they are a fantastic aid with the Radar for picking out distant cells. If you are interested, NVGs work in the Near-IR spectrum.
Radar IS attenuated by water vapour, this is why you get shadows behind really nasty cells and this is why you can penetrate one really nasty wall to find another, even nastier one just behind it!
Water vapour (actually the OH- bonds) absorb a LOT of emmissions in the IR band, but Visible light is attenuated more. Thus, in fog, you cannot see the runway due to fog due to severe attenuation, however, the runway is still visible at short ranges using IR.
In cloud, the proportion of Water per m^3 is much higher than in fog, thus much higher attenuation and thus far shorter range.
Outside of cloud, there is no attenuation, every object by its inherent nature emits IR (yes, even you) and this makes FLIR very useful in picking out CBs in the dark. Unfortunately, CBs emit little visible light other than the flash of lightning. Otherwise they would be glowing in the dark.
I use my NVGs more enroute than I do at the pointy end; they are a fantastic aid with the Radar for picking out distant cells. If you are interested, NVGs work in the Near-IR spectrum.
Radar IS attenuated by water vapour, this is why you get shadows behind really nasty cells and this is why you can penetrate one really nasty wall to find another, even nastier one just behind it!
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From: Earth
I almost lost control of the G550 last year trying to outclimb a large build up near KL
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From: USA
RE: VinRouge post and weather, the following link takes you Dr Ed Zipsner, guru in tropical storms. NASA - Meet Dr. Ed Zipser: Meteorologist who Specializes in Predicting and Measuring the Severity of Rainstorms
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From: Santiago
air weather conventions
For non-pilot or WX buff readers check out below link to understand why "CB". METAR/TAF Conversion Card
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From: London UK
I understand it was overcome with a software modification, but the A321 was prevented from making full flap approaches for some months while the change was developed and tested. As a result BMI had to substitute other types into Belfast City, a notably short runway, during this time, where approaches without full flap could not be made.