Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Aircraft take off question.

  • 01-12-2014 6:30pm
    #1
    Registered Users, Registered Users 2 Posts: 16,059 ✭✭✭✭


    I hope this post is not in the wrong place, but I figured you people might know...

    I am flying out of Dublin Airport on Thursday afternoon. Dense fog is forecast to last all day.

    Would the planes be grounded because of this?

    I suppose the danger is mostly on the ground if the planes can't be seen or something by ground/atc.

    I don't mind if the flight is delayed or cancelled, at least I would know the reason, and safety is paramount.

    So in a bad fog will the flight be able to take off?

    Thanks.


Comments

  • Posts: 0 [Deleted User]


    I hope this post is not in the wrong place, but I figured you people might know...

    I am flying out of Dublin Airport on Thursday afternoon. Dense fog is forecast to last all day.

    Would the planes be grounded because of this?

    I suppose the danger is mostly on the ground if the planes can't be seen or something by ground/atc.

    I don't mind if the flight is delayed or cancelled, at least I would know the reason, and safety is paramount.

    So in a bad fog will the flight be able to take off?

    Thanks.

    Aircraft will take off and land no problem. There may be some slight delays as the movement rate will be reduced slightly because of the fog. ATC have ground radar that can see all aircraft and vehicles on the airfield.


  • Registered Users, Registered Users 2 Posts: 1,980 ✭✭✭Growler!!!


    An aircraft requires less visibility for take off than for landing. With the company I work for we only require a 90 meter visual segment from the cockpit.

    Enjoy your flight:D


  • Registered Users, Registered Users 2 Posts: 16,059 ✭✭✭✭Spanish Eyes


    Aircraft will take off and land no problem. There may be some slight delays as the movement rate will be reduced slightly because of the fog. ATC have ground radar that can see all aircraft and vehicles on the airfield.

    Thanks for the interesting information. I wasn't aware that there was ground radar. But I'm only a pax, not a pilot or anything like that!

    Looks like we might get going so!

    Fingers crossed.

    Cheers, it's great to get real information from those who know!


  • Registered Users, Registered Users 2 Posts: 16,059 ✭✭✭✭Spanish Eyes


    Growler!!! wrote: »
    An aircraft requires less visibility for take off than for landing. With the company I work for we only require a 90 meter visual segment from the cockpit.

    Enjoy your flight:D

    Thanks.


  • Registered Users, Registered Users 2 Posts: 6,064 ✭✭✭Chris_5339762




  • Advertisement
  • Moderators, Motoring & Transport Moderators Posts: 10,005 Mod ✭✭✭✭Tenger



    But thats landing, he asked about take-off!!!!

    :D:D:D:D


  • Registered Users, Registered Users 2 Posts: 16,059 ✭✭✭✭Spanish Eyes


    Tenger wrote: »
    But thats landing, he asked about take-off!!!!

    :D:D:D:D

    Doesn't matter... the intention was good.

    I enjoyed watching that landing in fog. That might just be us on the way back!!

    Have to say, watched a few clips there on the video thread, and by God, pilots are calm.

    The rest of us would have a hernia if there is a bit of turbulence :pac:


  • Registered Users, Registered Users 2 Posts: 10,431 ✭✭✭✭smurfjed


    For me the issue would be where is the nearest airport where i can land again, in order to takeoff in horrible visibility, we need another airport within 220 mms where the weather is good enough to land.


  • Banned (with Prison Access) Posts: 1,221 ✭✭✭braddun


    ryan air and aer lingus will charge you extra for the fog
    as you did not book it in advance


  • Registered Users, Registered Users 2 Posts: 73 ✭✭Chuck Aaron


    So in a bad fog will the flight be able to take off?

    Each airport will have it's own "Aerodrome operating minima" which is basically how bad the weather can get to the level that a take off or landing with be cancelled.

    There's 2 things taken into account, visibility (along the runway - fog etc) and the cloud base (height of cloud above the runway/airport).

    Visibility is taken into account for take off's and both visibility & cloud base for landings.

    Neither takeoff nor landings in fog cause too much stress or bother to those of us that are Pilots, most here will be familiar with auto land (it's not so much flying the aircraft as opposed "Monitoring & Managing" the aircraft these days), goggle CAT III auto land.

    ...Oh, short answer: Yes.


  • Advertisement
  • Registered Users, Registered Users 2 Posts: 413 ✭✭postitnote


    smurfjed wrote: »
    ..we need another airport within 220 mms ...

    Going to struggle to find many airports within 220 millimetres i would have thought :pac::p;)


  • Registered Users, Registered Users 2 Posts: 2,912 ✭✭✭sparrowcar


    braddun wrote: »
    ryan air and aer lingus will charge you extra for the fog
    as you did not book it in advance

    2006 called, they want their joke back.....


  • Registered Users, Registered Users 2 Posts: 1,708 ✭✭✭BeardySi


    Tenger wrote: »
    But thats landing, he asked about take-off!!!!

    :D:D:D:D

    Watch it backwards? :P :D


  • Moderators, Motoring & Transport Moderators Posts: 10,005 Mod ✭✭✭✭Tenger


    .....Have to say, watched a few clips there on the video thread, and by God, pilots are calm.

    The rest of us would have a hernia if there is a bit of turbulence :pac:
    You have to realise that this sort of stuff is what the flight crew are trained for. They do regular check flights and si sessions to ensure that when difficult/bad situations do occur that they have the SOP's and simulator experience to fall back on.

    I know quite a few drivers who enjoy these challenging conditions as it tests their professionalism. They get a sense of "job well done" on days like that.


  • Registered Users, Registered Users 2 Posts: 6,064 ✭✭✭Chris_5339762


    And also what we consider as being a rough or bad weather landing is not what pilots would consider rough or bad. Their definitions would be a lot worse.


  • Registered Users, Registered Users 2 Posts: 16,059 ✭✭✭✭Spanish Eyes


    Hi all,

    Thanks for all the information about something I know little about!

    Just on the bad weather stuff again, in September I was flying to Nice. Airport was suddenly closed due to bad winds, that was what the captain said.

    So we diverted to Toulon, and wow! Wind was very bad there too, and I experienced my very first "go around".

    We got down on the second try, and then an hour later up in the air again to a very windy Nice airport, and would you believe it, ANOTHER go around!

    I think the pilot had a good day. It must be interesting and breaks the monotony when a weather challenge happens.

    It wasn't pleasant back in cattle class, very bumpy and shaky, but we are all here.


  • Registered Users, Registered Users 2 Posts: 73 ✭✭Chuck Aaron


    Just on the bad weather stuff again, in September I was flying to Nice. Airport was suddenly closed due to bad winds, that was what the captain said.

    Winds, so there's the 3 main types, Head wind Tail wind and Cross wind which affect landing.

    For Cross winds (wind blows across or perpendicular to the direction of the Aircraft/Runway direction) & Tail winds (wind blows from behind, increases Aircraft speed and shortens the time it takes to get from A to B) each Aircraft has specific limits, go above these and these winds make it unsafe to take off or land (time to divert to another Airport).

    A lot of planes "Crab" into wind within reasonable Cross winds, nose points into wind until close to runway and then as it's touching down the Pilot will bring in rudder and straightens up the Aircraft and lands.

    Plenty of Youtube vids available.


  • Registered Users, Registered Users 2 Posts: 16,059 ✭✭✭✭Spanish Eyes


    Winds, so there's the 3 main types, Head wind Tail wind and Cross wind which affect landing.

    For Cross winds (wind blows across or perpendicular to the direction of the Aircraft/Runway direction) & Tail winds (wind blows from behind, increases Aircraft speed and shortens the time it takes to get from A to B) each Aircraft has specific limits, go above these and these winds make it unsafe to take off or land (time to divert to another Airport).

    A lot of planes "Crab" into wind within reasonable Cross winds, nose points into wind until close to runway and then as it's touching down the Pilot will bring in rudder and straightens up the Aircraft and lands.

    Plenty of Youtube vids available.

    Yes, I have seen a few (to me) hairy landings in crosswinds on ut. It looks like the plane is diagonal coming in, and you would never think the plane could land straight at all.

    Then there is a turn just before touch down, it's amazing skills. That would be the "crab like" approach you mention.

    Hats off to all you lot in the pointy end.


Advertisement