What volcanic ash?

Discussion in 'CycleChat Cafe' started by Globalti, 15 Apr 2010.

  1. Globalti

    Globalti Legendary Member

    I've just heard that even Manchester airport is likely to have 85% of its flights cancelled today yet I'm in Manchester now and I can tell you that the sky is clear blue and there's no sign of a layer of ash.

    WTF is going on? What's Glasgow like, Greedo?
     
  2. snorri

    snorri Legendary Member

    No ash visible, but there is 90% cloud cover at present, and the ash is above the clouds. The sun can be seen through a gap in the clouds, so everything looks quite normal in the Highlands.
     
  3. Arch

    Arch Married to Night Train

    Location:
    Salford, UK
    The report I heard said that the ash is 11 km (or was it miles?) up, so it's not really going to be 'visible'. It could give some nice sunsets though.

    Also, I think, as I type, it's only over Scotland, but heading south.

    Overcast here in York anyway.
     
  4. Bman

    Bman Veteran

    Location:
    Herts.
    I think it has more to do with physical problems for the aircraft instead of visibility problems.

    Apparantly jet engines dont like volcanic ash.
     
  5. tyred

    tyred Legendary Member

    Location:
    Ireland
    Airports here are closed as well.
     
  6. Andy in Sig

    Andy in Sig Vice President in Exile

    I read somewhere that the ash is supposed to be very fine and it gets in the engines, builds up and then screws them up.
     
  7. SavageHoutkop

    SavageHoutkop Über Member

    Wikipedia shows
    http://en.wikipedia.org/wiki/British_Airways_Flight_9

    In response to the OP - I was also expecting a cloud of some description! Figured perhaps it'll take a while to get here, after all Scotland is quite far....

    Should be a nice sunset tonight though if it's clear?
     
  8. nigelb

    nigelb New Member

    All dark and grey here in Cambridge, overcast - I just assumed that was "British Summer".

    So, is this the start of the next ice age, or will it accelerate global warming ...

    Nige
     
  9. cookiemonster

    cookiemonster Guru

    Location:
    Hong Kong
    Near clear skies here in Aberdeen.

    No sign of volcanic ash. An over-reaction perhaps?
     
  10. Its the same in Dunfermline but all Scottish flights are grounded :ohmy:
     
  11. Spinney

    Spinney Bimbleur extraordinaire

    Location:
    Under the Edge
    Read the wiki link about Speedbird 9.

    The ash that stopped its engines was not visible either.

    Would you be happy taking off in a plane when there is a very real possibility that ALL its engines may stop in flight?
     
  12. Arch

    Arch Married to Night Train

    Location:
    Salford, UK
    Only as much as screaming your head off as your airliner plunges to the ground...:ohmy:
     
  13. XmisterIS

    XmisterIS Purveyor of fine nonsense

    Volcanic ash is typically micron or sub-micron sized and is sharp (that's why it sticks). It's not like ash that comes from burning wood - this stuff is made of evaporated rock. When it gets into a moving device, it sticks to itself, the device and acts like sandpaper - which is why you clean your bike transmission to remove the grit that has been thrown up from the road, which also acts like sandpaper!
     
  14. Chrisc

    Chrisc Über Member

    Location:
    Huddersfield
    You wont see anything, the dust is up at 55,000ft and very fine but it stops plane engines in their tracks.
     
  15. Arch

    Arch Married to Night Train

    Location:
    Salford, UK
    Oh, I love that 'illustration' of the plane in the dust cloud, showing a pitch black background, when the account doesn't mention visible dust at all...
     
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