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Fast landings

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Comments

  • Closed Accounts Posts: 2,980 ✭✭✭Kevster


    Thanks dude. i actually read about the Glidescope beam in a book written by a pilot. It explains lots of things about airplanes and flying in general. To be honest, he makes it seem like most of the work in flying is just sticking to designated pathways in the sky and also at designated altitudes. Basically, there's not much freedom up there, if you get me.


  • Registered Users, Registered Users 2 Posts: 3,941 ✭✭✭pclancy


    Pretty much. Keeping aircraft nicely spaced flying along virtual airways in the sky is the only way to keep it so safe and well managed. Depending on the area and how busy it is you'd be able to go around or above/below bad weather etc but the routes have been preplanned so yeah you'd stick to your route.


  • Closed Accounts Posts: 987 ✭✭✭diverdriver


    There's more freedom than you think, for airliners sticking to airways is sensible just like driving the right way down a motorway. But for example if you want to make a test flight or simply fly around at altitude in your private jet. All you need to do is file an appropriate flight plan and tell ATC what you want and off you go, within limitations of course. The won't let you do aerobatics right in the airway anymore than the police would tolerate 'doughnuts' on the M50. In fact ATC are not like the police. The word 'control' in Air Traffic Control is, in my opinion a misnomer. They are facilitators. Guides if you like. Certainly more helpful than the police.

    In Ireland too, most airspace below flight level 75 (approx 7500 feet) is class G. In that airspace you don't need a radio or transponder. You can go where you like, when you like. There is no restriction, no flight plan is needed. It would be sensible to talk to someone though but not required. To go above that atitude, you need a flight plan but even that is no problem. So there is a lot more freedom than you think. It's slightly different in other countries.

    As for the ILS glideslope, you actually don't need it when you're visual. I flew in the cockpit of a Ryanair years ago when it was legal. The crew went for a visual approach, the GPWS complained all the way down, 'glideslope, glideslope, glideslope' because they were just flying hand flying it. You can also use the PAPIs to judge your angle, two red and two white lights and it's happy days.

    So there is a lot more freedom, but if you work for an airline, you fly to their SOPs and you stay part of the system. That's why airline flying is the safest form of travel.


  • Closed Accounts Posts: 668 ✭✭✭ch252


    aircraft rarely, if ever stick to their flight plan route. That only happens in High Level(above fl240 I think). ATC nearly always give direct routings to the point at which they will leave their airspace the main exception being slot times for oceanic clearances, they may be a bit ahead of themselves. As for the freedom, well if you want the freedom, as diverdriver said, don't go above 7500ft or into the cta of an airport:)


  • Closed Accounts Posts: 2,980 ✭✭✭Kevster


    Fascinating stuff guys (really). Just another question: What do the winglets do on the tips of wings? I suppose they just decrease turbulence or something? As far as I'm aware, wake vortices are produced at the tips of wings, which is why I imagine the winglets are for stability.

    ??


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  • Closed Accounts Posts: 167 ✭✭bladeruner


    Now youre getting into complicated territory,
    winglets reduce "induced drag".

    where you have lift you generally have induced drag.

    theres lots of good material out there if you want to read more.

    I think winglets look great on aircraft , but the 737 winglets are so big that they actually reduce the cross wing limitation for landing by 2 to 3 knots .


  • Closed Accounts Posts: 2,980 ✭✭✭Kevster


    I noticed that myself about the 737 winglets, and was equally surprised. They seemed to be at least as tall as your average adult male, but I had assumed that they were much smaller. The Airbus' that Aer Lingus use don't have winglets though.


  • Registered Users, Registered Users 2 Posts: 2,549 ✭✭✭*Kol*


    Kevster wrote: »
    I noticed that myself about the 737 winglets, and was equally surprised. They seemed to be at least as tall as your average adult male, but I had assumed that they were much smaller. The Airbus' that Aer Lingus use don't have winglets though.

    The Airbus that Aer Lingus use do have winglets. The A330 have blended type winglets. The A320s have winglets but the are not the blended type.

    2376058209_9167a1110c.jpg?v=0


  • Registered Users, Registered Users 2 Posts: 1,212 ✭✭✭Delta Kilo


    Kevster wrote: »
    I noticed that myself about the 737 winglets, and was equally surprised. They seemed to be at least as tall as your average adult male, but I had assumed that they were much smaller.

    I seen a diagram of the 737-800 and according to it the winglets are 8ft 2" tall. Cant remember where I seen it but I couldnt believe they were that tall! Thats about your floor to ceiling height in your house. Impressive stuff.

    Here is basically what they do in diagram form:

    http://airlineworld.files.wordpress.com/2008/10/winglets.jpg

    EDIT: Now that I see them, those little pins on the airbus winglet are there to discharge the static electricity that builds up on the plane from the air friction.

    Apparently, in SAR when they put the basket down, they dunk it in the water first to discharge the static electricity before bringing it over to the casualty. Anybody know if this is true?


  • Registered Users, Registered Users 2 Posts: 2,549 ✭✭✭*Kol*


    B767 winglets are 11 ft tall. They are monster winglets!


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  • Closed Accounts Posts: 14,575 ✭✭✭✭FlutterinBantam


    bladeruner wrote: »
    Now youre getting into complicated territory,
    winglets reduce "induced drag".

    where you have lift you generally have induced drag.

    theres lots of good material out there if you want to read more.

    I think winglets look great on aircraft , but the 737 winglets are so big that they actually reduce the cross wing limitation for landing by 2 to 3 knots .


    Crosswind??


  • Closed Accounts Posts: 167 ✭✭bladeruner


    Thanks Flutterinbantam,
    spelling ,maths and languages were not my strongest subjects in school

    :D


  • Closed Accounts Posts: 668 ✭✭✭ch252


    bladeruner wrote: »
    spelling ,maths and languages were not my strongest subjects in school

    :D

    Who needs 'em!:P


  • Registered Users, Registered Users 2 Posts: 2,549 ✭✭✭*Kol*


    bladeruner wrote: »
    Thanks Flutterinbantam,
    spelling ,maths and languages were not my strongest subjects in school

    :D

    Is english not your first language? You didn't make any spelling error just a minor terminology mistake.


  • Registered Users, Registered Users 2 Posts: 1,786 ✭✭✭rugbyman


    it has been explained here enough that anybody can have hard or soft landings, that the ryanair bump does not exist and that bump and get it over with is perhaps the best way,

    Anyway, flew in Aerlingus from Brussels monday (21.30 departure)

    I doubt if I could park my car any more gently than the pilot landed his plane.
    I know his name , but dont know which of them landed the plane,

    This may seem heresy but i have noted that female pilots seem to land gently, but have not had enough experiences to detect a pattern.

    Regards, Rugbyman


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