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That's not correct. A runway can be used in either direction, if you look on Google maps you can see the runway at Jeju has markings at both ends including a nu

by ra 2y ago

That's not correct. A runway can be used in either direction, if you look on Google maps you can see the runway at Jeju has markings at both ends including a number (denoting it's compass heading) - both ends are usable. You always want to land with a headwind and never a tailwind, so ATC will use whichever end is favorable for the current conditions. In this case, if they attempted to land with a tailwind then the on-heading vector component of wind velocity must be added to the airspeed to get the ground speed... whilst this was a contributing factor to the accident, it's not something to focus on. There will be a thorough investigation but it will take some time to get answers.

Towaway69 2y ago
Thanks for the clarification :+1: It should perhaps be pointed in news coverage since I equated "opposite direction" with "wrong direction" - hence my scepticisms about the wall.
rich_sasha 2y ago
I read that the opposite direction had a NOTAM exclusion, i.e. was excluded from use. From the professional pilot forum linked a few days ago in a similar thread. If that's right then OP would be correct in saying, this direction wasn't meant to be used.
- loeg 2y ago
  Ok but in an emergency all bets are off, the opposite direction is better than a crash landing. So you can't just assume 100% of landings are in one direction.
  - lmm 2y ago
    > Ok but in an emergency all bets are off, the opposite direction is better than a crash landing. Sure, but so is a highway, or a river. Doesn't mean those should be built to runway standards.
    - loeg 2y ago
      Ok but this is a runway. It should be built to runway standards!
      - defrost 2y ago
        Who doesn't love a good runway: https://youtu.be/1_MO5Wfomks?t=146 https://youtu.be/1_MO5Wfomks?t=146
      - lmm 2y ago
        It's a runway in one direction only. It doesn't need to be built to the standards for a runway operating in the opposite direction, because it isn't.
- bombcar 2y ago
  Depends on why it was NOTAM’d - could be that the localizer was out, that there was a noise abatement, or other reasons. Part of preflight is investigating those so you know what are options at what are not - entirely closed runways will be indicated if they’re actually broken up or just marked closed.
kgwgk 2y ago
> if you look on Google maps you can see the runway at Jeju Do you mean at Muan?

by ra 2y ago

Towaway69 2y ago

Thanks for the clarification :+1: It should perhaps be pointed in news coverage since I equated "opposite direction" with "wrong direction" - hence my scepticisms about the wall.

rich_sasha 2y ago

I read that the opposite direction had a NOTAM exclusion, i.e. was excluded from use. From the professional pilot forum linked a few days ago in a similar thread. If that's right then OP would be correct in saying, this direction wasn't meant to be used.

loeg 2y ago
Ok but in an emergency all bets are off, the opposite direction is better than a crash landing. So you can't just assume 100% of landings are in one direction.
- lmm 2y ago
  > Ok but in an emergency all bets are off, the opposite direction is better than a crash landing. Sure, but so is a highway, or a river. Doesn't mean those should be built to runway standards.
  - loeg 2y ago
    Ok but this is a runway. It should be built to runway standards!
    - defrost 2y ago
      Who doesn't love a good runway: https://youtu.be/1_MO5Wfomks?t=146 https://youtu.be/1_MO5Wfomks?t=146
    - lmm 2y ago
      It's a runway in one direction only. It doesn't need to be built to the standards for a runway operating in the opposite direction, because it isn't.
bombcar 2y ago
Depends on why it was NOTAM’d - could be that the localizer was out, that there was a noise abatement, or other reasons. Part of preflight is investigating those so you know what are options at what are not - entirely closed runways will be indicated if they’re actually broken up or just marked closed.

kgwgk 2y ago

> if you look on Google maps you can see the runway at Jeju Do you mean at Muan?