Meanwhile, A British Airways Boeing 747 has completed a test flight at 30,000ft from Heathrow to Cardiff, via the Atlantic.
Chief executive Willie Walsh - who is a trained pilot - and four crew were on board.
BBC business editor Robert Peston reported that the 550-mile, a two-and-three-quarter hour flight had encountered no problems.
Engineers in Cardiff will make a more detailed assessment of the plane's engine overnight.
Dutch airline KLM and German airline Lufthansa have also carried out test flights in their countries' airspace to see if it is safe for planes to fly.
KLM said it had flown a plane through the cloud of volcanic ash without suffering any damage.
Air France said it had successfully carried out a test flight from Paris to Toulouse.
Seems as if NATs are organising to lift the LHR curfew in order to clear the backlog (i.e allow flights through the night). Don't have the sauce, but interesting times.
uh oh
http://ashalerts.com/2010/04/18/katla-10-minute-median-averaged-tremor-vertical-component/
Tremors starting in Katla.....is it only a matter of time?
Sorry, I mis-phrased. NATs are scheduling controllers for night shifts as if they were day shifts.It's not up to Nats, ther'll have to be input from the airport authority, the DoT and the CAA.
It would certainly be helpful though. At that time of the day, i.e. after midnight, the airspace over London is largely empty so it's the perfect time to clear backlogs and aid repositioning.
In the past, all three known eruptions of Eyjafjallajökull triggered subsequent Katla eruptions.http://en.wikipedia.org/wiki/Katla#cite_note-11Urm, any analysis to go with this? What's the original source? How do we interpret this?
How do we interpret this?
Sorry, I mis-phrased. NATs are scheduling controllers for night shifts as if they were day shifts.

Where'd you hear that? They'd have to draft people in on overtime rather than changing their shift due to SCRATCOH regulations. I haven't been offered any overtime either!![]()
Have you just been sitting on your bum over the last few days looking at pr0n?
Scheduled to fly Bristol - Faro at 0625 Wednesday, getting worried that this is not gonna happen now![]()
