Ash clouds threaten air traffic
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Call me a chicken but last time i looked before i put on my uniform and stepped into my 737 it didnt have TEST PILOT written on it anywhere. I aint going anywhere near the skies until the experts say OK. By experts I mean profs who know about this stuff not some pilots from Holland and Germany.
Sat at home enjoying the weather and rerun of the Grand Prix.
Sat at home enjoying the weather and rerun of the Grand Prix.
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@ Penko
There was a post much earlier in this thread where one of the experts described that what happens is that when the lava hits the ice of the covering glacier: It freezes into glass; then the pressure builds up and it explodes - which shatters the previously frozen glass into sharp-edged shards of glass.
This makes it different from sand because (a) sand has rounded edges, and (b) the melting point of sand is way above the temperatures encountered in a jet engine, whereas the glass (more accurately, silicate) has a melting point considerably lower than the temperatures in a jet engine.
OK?
Marconiphone, so just what do you call those KLM, Lufthansa and Condor pilots who are flying right now in search of a solution? It's nice to say that the ice may even make this ash even more dangerous (please give a link to this, not heard it before), but that does not answer the question: is there enough of the stuff up here to do any damage?
This makes it different from sand because (a) sand has rounded edges, and (b) the melting point of sand is way above the temperatures encountered in a jet engine, whereas the glass (more accurately, silicate) has a melting point considerably lower than the temperatures in a jet engine.
OK?
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Engineering aproach
As mentioned by jcjeant in 791
Seem's they forget the volcanic ashes
and if there is no measurement of Volcanic ash density....
seems we are in bad shape to establish procedures.
I think is time to a more engineering aproach....
Seem's they forget the volcanic ashes
and if there is no measurement of Volcanic ash density....
seems we are in bad shape to establish procedures.
I think is time to a more engineering aproach....
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BA 747 test flight
Announced on BBC News a few minutes ago that the BA 747 test flight planned for this evening (but still apparently subject to confirmation) will have just 5 people on board including Willie Walsh.
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HVO (Lagu Hvolar) seismometer which is the closest to Katla is peaking:
Órói á stöðvum við Eyjafjallajökul
Tremor
Órói á stöðvum við Eyjafjallajökul
Tremor
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OK? I thought vulcanic ash was rougher than sand anyway. With the process discribed above, freezing lava on a bed of ice, there can't be that much glass in the sky? How much ice is left to be blown up on a vulcano that has been erupting for almost a week?
Re Dutch and German experts. All you have to do is fly through those dangerous skies and let the engineers on the ground examine the results. A bit more respect for the people who are actually working on a solution might suit us!
Re Dutch and German experts. All you have to do is fly through those dangerous skies and let the engineers on the ground examine the results. A bit more respect for the people who are actually working on a solution might suit us!
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Smell of sulphur in the village yesterday and fine sandy dust on the car and that's in Cornwall. I believe Skybus continued operating between NQY and ISC up until yesterday when the found ash onone of their Twotters. BIH helicopters from Penzance have since stopped. I've stood all my crew down for tomorrow and cancelled everything. It makes for a quiet day.
Going to bring some old tins of paint in and redecorate the office tomorrow!
Going to bring some old tins of paint in and redecorate the office tomorrow!
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Now that seems a very fair proposal!
Originally Posted by Young Paul
Aw, look, it's really not hard to do research. Launch an aeroplane, let it fly around for a couple of hours, then when it gets down, take the engine apart. It's not like the airlines, pilots or engineers have much else to do with their time at the moment.
Better still, launch five, into areas with forecast different concentrations. Keep then within a safe distance of airfields. Stick a couple of observers on each to additionally report anything odd, provide additional support in case anything does go wrong. There are about a thousand aircraft sitting around doing nothing, at a guess, and the airlines are collectively losing hundreds of millions of pounds a day. There is no shortage of pilots who would be more than happy to fly a "weathership". If the crew are really freaked by something, head for home as soon as anything deviates from normal - in the knowledge that you have the undivided attention of ATC, fire services, airports .....
Better still, launch five, into areas with forecast different concentrations. Keep then within a safe distance of airfields. Stick a couple of observers on each to additionally report anything odd, provide additional support in case anything does go wrong. There are about a thousand aircraft sitting around doing nothing, at a guess, and the airlines are collectively losing hundreds of millions of pounds a day. There is no shortage of pilots who would be more than happy to fly a "weathership". If the crew are really freaked by something, head for home as soon as anything deviates from normal - in the knowledge that you have the undivided attention of ATC, fire services, airports .....
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A return fire question to you. How many deaths need to spared for you to say that the ban was worth it?
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Call me a chicken but last time i looked before i put on my uniform and stepped into my 737 it didnt have TEST PILOT written on it anywhere. I aint going anywhere near the skies until the experts say OK. By experts I mean profs who know about this stuff not some pilots from Holland and Germany.
Sat at home enjoying the weather and rerun of the Grand Prix.
Sat at home enjoying the weather and rerun of the Grand Prix.
After 30 years and 18,000 hours, I have flown near near lots of active volcanoes in the Pacific and Caribbean. Occasionally I have had to re-route around ash clouds of those that erupt while in flight.
I am having a difficult time understanding what appears to be a large scale over reaction to a world wide phenomenon which happens quite regularly.
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Airspace may open tomorrow
Will the nay sayers on here subsequently refuse to work tomorrow?
Good news anyway, but once we resume flight, we as air crew will need some UNAMBIGUOUS sensible information as to what we are to be careful of once up in the air. Is it the invisible cloud of the last few days? Or should we just look out for the nasty brown stuff? Might that cirrus cloud be ash, or was that just overreaction from NATS? We desperately need that info clearly.
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Spanish airports reopen
Acording to AENA the following airports reopen today from 15:30
Barcelona, Girona, Reus, Sabadell, Palma de Mallorca, Menorca, Son Bonet, Asturias, Santander, Bilbao, San Sebastián, Vitoria, Pamplona, Logroño, Huesca y Zaragoza
Barcelona, Girona, Reus, Sabadell, Palma de Mallorca, Menorca, Son Bonet, Asturias, Santander, Bilbao, San Sebastián, Vitoria, Pamplona, Logroño, Huesca y Zaragoza