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Ash clouds threaten air traffic

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Old 17th April 2010 | 06:02
  #521 (permalink)  
 
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From: UK on a crosswind
For those who doubt my memory - I wasn't on the night flight - the record shows that there were at least three - possibly four pure jet, passenger flights affected by the Indonesian volcano - two southbound at least one northbound and at least one internal. I think one of the southbound was night and the other may have been daylight or night but ours was daylight. There have been over ninety (90) flights worldwide recorded as adversely affected by ingesting volcanic ash (I don't think that includes old Soviet Union flights).
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Old 17th April 2010 | 06:15
  #522 (permalink)  
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From: Mycenae
Local news in SFO reporting BA284 dispatched to Scotland about 10 minutes ago? Best of luck to them.
Turned back to SFO and landed back there a couple of hours ago.

Last edited by StudentInDebt; 17th April 2010 at 10:37.
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Old 17th April 2010 | 06:25
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...by being the first ANSP to close their airspace to all aircraft. An unprecedented decision which it took the rest of Europe many hours to follow ...
May I remind you that Norway shut down their airspace on wednesday evening, some 12+ hours before the UK. Sweden and Finland also had partial closures already wednesday evening.
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Old 17th April 2010 | 06:29
  #524 (permalink)  
 
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From: scotland
engine particle control seperator!

That is an interesting concept ..you might also add windscreen protection panels as well..I have changed a couple of volcanic abraded screens that do become opaque in PNG!
Also the paint scheme also does'nt fare well.
Main worry is those burners deep in the combustion chambers that have very minute air holes to swirl the fuel into a nice pattern ..they have a tendancy to block l! The fire goes out! Gliding commences!! al la BA 747
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Old 17th April 2010 | 07:03
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From: England
Re-heat, reptile

Why this sudden demand for trial by media in realtime? Let the professionals at NATS / CAA / Met Office do their job, and consider after the event.
No demand for real time trial by the media.

You conspiracy theorists just won't let go will you.
No conspiracy theory either. Given the immense damage and the real potential for destroying our industry, it is of vital importance that the decision-making process is fully transparent and understood.

Regards

S
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Old 17th April 2010 | 07:14
  #526 (permalink)  
 
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From: Wellington
Stoic

"No conspiracy theory either. Given the immense damage and the real potential for destroying our industry, it is of vital importance that the decision-making process is fully transparent and understood."

That is an entirely reasonable position. The trouble is that your earlier posts all default to the presumption that there has been an over-reaction, so your last post rings hollow.
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Old 17th April 2010 | 07:15
  #527 (permalink)  
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From: Watford
pretty picture

Can't find an English version at the moment but this is a good link to display the problem Ny: Beregnet spredning per 16. april kl 21 - met.no
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Old 17th April 2010 | 07:17
  #528 (permalink)  
 
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From: Midlands
Given the immense damage and the real potential for destroying our industry, it is of vital importance that the decision-making process is fully transparent and understood.
Dogsbody: "Sire, Carruthers is dead, flew through an ash cloud that we'd warned him about."

Top Dog: "Jolly bad show, better close the airspace then."

Sound of hooves disappearing into the distance and stable door flapping in the ash-laden wind.

With apologies to mods but three days of news coverage and nearly 30 pages on here......
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Old 17th April 2010 | 07:19
  #529 (permalink)  
 
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From: UK
What are NATS up to?

If you current data for the next 18 hours, there is a clear corridor into PIK, GLA and EDI.

http://www.metoffice.gov.uk/aviation...1271483349.png

Should they not be working hand it hand with the met office to understand the issue rather than making decisions 2 or 3 hours later

However with the further eruptions, its not going to be looking too good for the next few days.
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Old 17th April 2010 | 07:21
  #530 (permalink)  
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From: England
Totally agreed!

It's fair to say that a good 25-33% of flights from this country that are heading southbound could still take place virtually risk free at a lower level. I'm not saying my numbers are correct but an example might be: A departure out of Gatwick could trod along 100 nm south at 6000ft before being out of the risk zone and then climbing higher and proceeding normally. Clearly this means temporary changes to airspace classification across borders which would affect GA but thats a lot better than having commercial traffic at a complete standstill for a month!

Just an idea, don't shoot me down!
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Old 17th April 2010 | 07:24
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From: UK
It's fair to say that a good 25-33% of flights from this country that are heading southbound could still take place virtually risk free at a lower level. I'm not saying my numbers are correct but an example might be: A departure out of Gatwick could trod along 100 nm south at 6000ft before being out of the risk zone and then climbing higher and proceeding normally. Clearly this means temporary changes to airspace classification across borders which would affect GA but thats a lot better than having commercial traffic at a complete standstill for a month!
Is the risk not from 0 - FL280
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Old 17th April 2010 | 07:24
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From: Midlands
The Dornier research aircraft that flew from Cranfield yesterday reported THREE distinct layers of contaminants BELOW 10 Thousand feet!
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Old 17th April 2010 | 07:31
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From: Antipodean exile
Aer Lingus US bound flights for Saturday cancelled

Aer Lingus US bound flights have been cancelled today after resuming yesterday. 5 flights arrived from US this morning but all outbound flights have been cancelled.
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Old 17th April 2010 | 07:37
  #534 (permalink)  
 
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From: Australia
That's called a walk-back, Stoic. At least you realize it.
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Old 17th April 2010 | 07:38
  #535 (permalink)  
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From: I'm somewhere where I don't know where I am.
It's fair to say that a good 25-33% of flights from this country that are heading southbound could still take place virtually risk free at a lower level. I'm not saying my numbers are correct but an example might be: A departure out of Gatwick could trod along 100 nm south at 6000ft before being out of the risk zone and then climbing higher and proceeding normally. Clearly this means temporary changes to airspace classification across borders which would affect GA but thats a lot better than having commercial traffic at a complete standstill for a month!
So you get airborne from Glasgow and head West climbing above FL200, then turn south. Somewhere around the Brest peninsula you lose an engine, but that's OK because you stabilise at FL220. Your options now are to fly back to Glasgow, press on to Santander or descend through volcanic ash on one engine. The dust cloud from SFC to FL200 covers most of France and South-West of the UK goes out to almost 20W.

I know that this will have a significant effect on airlines that are struggling, but the big hush would be much much worse.

Right, now off to get the BBQ ready for this afternoon.
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Old 17th April 2010 | 07:41
  #536 (permalink)  
 
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From: UK
BBC now saying NATS have announced no flts until 18th 0100BST earliest.
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Old 17th April 2010 | 07:42
  #537 (permalink)  
 
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From: England
Rongotai

That is an entirely reasonable position. The trouble is that your earlier posts all default to the presumption that there has been an over-reaction, so your last post rings hollow.
Given that, like one or two other posters on this thread, I used to fly around visible ash clouds in other parts of the world (e.g.Alaska, Indonesia), I must, I now realise, have flown 1000 miles downwind of active volcanoes through invisible ash clouds on numerous occasions. Sorry about the scratches on the engines Lord King!

Regards

S
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Old 17th April 2010 | 07:44
  #538 (permalink)  
 
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From: England
Reptile

That's called a walk-back, Stoic. At least you realize it.
Can you clarify please?
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Old 17th April 2010 | 07:44
  #539 (permalink)  
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From: Europe
GSLOC
All Russian airspace remains fully open despite that more then 24 hours has passed since data came that ash IS there. That's insane!
That's a common sense, not insane.
How many more times people will point to FAF F18 who flew through the ash on a purpose?

If we not back to the air by Monday, Tuesday morning we start to fire people. Other airlines the same.
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Old 17th April 2010 | 07:49
  #540 (permalink)  
 
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From: Kent
may just be my cars needed a wash anyway, however evidence of a gritty substance on the cars this morning down here in CAVOK Kent.
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