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-   -   Ozzies can’t fly when it’s windy? (https://www.pprune.org/australia-new-zealand-pacific/623491-ozzies-can-t-fly-when-s-windy.html)

ManaAdaSystem 12th Jul 2019 20:08

Ozzies can’t fly when it’s windy?
 
What’s going on? Canselling MEL and CBR because it may get windy?
17 kts is too much?
Weird way of doing things.

DHC4driver 12th Jul 2019 20:11

Yeah, it’s most certainly the pilots who make the decision to CANSEL the sectors.... 🙄

maggot 12th Jul 2019 20:55


Originally Posted by ManaAdaSystem (Post 10517168)
What’s going on? Canselling MEL and CBR because it may get windy?
17 kts is too much?
Weird way of doing things.

At the risk of canning your hyperbole there is significant delays developing in Syd already this morning due to the capacity reductions associated with single runway - it was over 30 a short time ago and they're onto 25

Ragnor 12th Jul 2019 21:23


Originally Posted by ManaAdaSystem (Post 10517168)
What’s going on? Canselling MEL and CBR because it may get windy?
17 kts is too much?
Weird way of doing things.

I would agree little weather phenomena and OZ ATC melt down. Only 24kts crosswind on the parallels on current ATIS

ManaAdaSystem 12th Jul 2019 21:54

Why single runway ops?
And why only MEL and CBR (and the odd Gold Coast) flights?

turbantime 12th Jul 2019 21:59

Single runway due to strong westerlies which means only the one east/west runway can be used and not the two north/south runways.

With capacity reductions in force, it’s up to the airlines to decide which services will be cancelled. Normally you would see Mel and the like canned due to the number of flights available during the day to recover pax.

ManaAdaSystem 12th Jul 2019 23:09

So they use single runway based on the forecasted and not the actual wind?
Wind has not been above 20 kts the whole morning. I love being proactive, but this is plain stupid.

turbantime 12th Jul 2019 23:34

Whatever man, go whinge on a frequent flyers forum.

C441 13th Jul 2019 00:20


Ozzies can’t fly when it’s windy? What’s going on? Canselling MEL and CBR because it may get windy?
But hopefully they can spell a primary word in their post! :rolleyes:

Caedus 13th Jul 2019 00:41


Originally Posted by C441 (Post 10517331)
But hopefully they can spell a primary word in their post! :rolleyes:

Given his username relates to Malaysian Airlines, I'd hazard a guess OP is from that part of the world and english is not particularly hot there. What his beef is with the intricacies of how things work over here though ¯\_(ツ)_/¯

cLeArIcE 13th Jul 2019 01:04


Originally Posted by ManaAdaSystem (Post 10517291)
So they use single runway based on the forecasted and not the actual wind?
Wind has not been above 20 kts the whole morning. I love being proactive, but this is plain stupid.

ATC would have looked at the forecast last night and decided under those conditions (single runway ops in Sydney) we can facilitate XXX number of movements. They then would of gone to the airlines and said "hey instead if the 80 slots (a made up number) in Sydney you normally get, you can only have 50. The airlines work it out from there.
Considering how long the ground delays can be just trying to get to RWY 25, I can only imagine the chaos if they didn't cancel flights.
It sucks your plans probably got altered but, it is what it is. You do understand that we don't enjoy it too? How many crews are going to get home hours late or over night in some other city despite the the plans they had with families etc. Probably plenty of controllers working hard and doing over time to (eventually) get you where you are going safely.
(they were probably doing that anyway though :E)
​​​

das Uber Soldat 13th Jul 2019 01:52

They really do move to 25/07 far too early. Anything up to 30kts should be 16/34. Beyond that ok fine, but I can't think of a single transport category aircraft that can't land in 30 kts. So instead I get to drill holes in the sky over Boree whilst we operate our biggest airport at hobbled capacity.

@$!#

Don't even start me on SODPROPS on a weekend just to tick a box.

Capt Fathom 13th Jul 2019 02:25

I'd imagine landing on 16R with a 30kt sou'wester would be quite sporting! :ouch:

neville_nobody 13th Jul 2019 02:26

Back in the day they would allow you to land on 16 if you requested it and the problem used to solve it self. Now by taking away decision making from the PIC they have created a bigger problem

GreenGhost39 13th Jul 2019 03:37

10.3.1 Selection of Runway in Use

10.3.1.1 Use of other than nominated runways. Controllers must not nominate a particular runway for use if an alternative runway is available, when:

(a) for runway conditions that are completely dry:
(i) the cross-wind component, including gusts, exceeds 20 KT;
(ii) the downwind component, including gusts, exceeds 5 KT.
(b) for runway conditions that are not completely dry;
(i) the cross-wind component, including gusts, exceeds 20 KT;
(ii) there is a downwind component.

gordonfvckingramsay 13th Jul 2019 09:16

Aaaah Sydney. It’s annoying that it’s too dangerous to land in a moderate crosswind there but landing at max elsewhere is ok. It should be up to the PIC.

Colonel_Klink 13th Jul 2019 09:26

However going into Melbourne late at night it’s not uncommon to be landing with 20kts crosswind and 5kts tail wind on a 2300m runway because they are only using 34 for departures NE....🙄

Having said all that - I acknowledge that the arrival rates are determined the evening prior based on a forecast, so essentially the damage is done then.

It wasn’t uncommon to see 120 minute COBT delays today - not fun for anyone.

Lead Balloon 13th Jul 2019 09:33

Two words:

1. Politics.

2. Money (to the extent that politics don't equal money).

Sorry, I meant one word: Safety.

donkey767 13th Jul 2019 10:49


Originally Posted by Colonel_Klink (Post 10517569)
However going into Melbourne late at night it’s not uncommon to be landing with 20kts crosswind and 5kts tail wind on a 2300m runway because they are only using 34 for departures NE....🙄

Exactly the situation last night - 30min airborne delays around 8pm because they were running RW27 only when the wind was around 15kts from the north west. But hey, it’s world’s best practice in Australia, right?

On another note... anyone on here have any info why MEL is the only airport in Aus that seems to change their ATIS every 5-10min most days?

ESP eclipse II 13th Jul 2019 11:25

[QUOTE]Exactly the situation last night - 30min airborne delays around 8pm because they were running RW27 only when the wind was around 15kts from the north west. But hey, it’s world’s best practice in Australia, right?

On another note... anyone on here have any info why MEL is the only airport in Aus that seems to change their ATIS every 5-10min most days?/QUOTE]

The large amount of ATIS changes is dictated by the Tower controllers and only by the Tower controllers. I suspect most of it is purely about "a-se" covering if something were to occur! Melbourne definitely holds a unique place in the world of aviation controlling on a few fronts.

itsnotthatbloodyhard 13th Jul 2019 12:24


Originally Posted by donkey767 (Post 10517638)


On another note... anyone on here have any info why MEL is the only airport in Aus that seems to change their ATIS every 5-10min most days?

Most likely because Melbourne changes its weather every 5-10 minutes most days.

George Glass 13th Jul 2019 12:42

Hey, come on guys this is Australia. You should be used to it by now.
If you want a real chuckle ask for the Flow Controllers phone number ( they will give it to you if you say it is either that or an ASIR) and find out how they really make decisions. On the other hand you might not want to because its very, very sad.
And they really, really do think they are worlds best practice!
And its never, ever going to get any better.
Pathetic.

TurningFinalRWY36 13th Jul 2019 13:38

Its so funny, go to the Europe, NA or even asia and you can see they can accomodate far more traffic with usually worse weather conditions

missy 13th Jul 2019 14:22


Originally Posted by GreenGhost39 (Post 10517409)

10.3.1 Selection of Runway in Use

10.3.1.1 Use of other than nominated runways. Controllers must not nominate a particular runway for use if an alternative runway is available, when:

(a) for runway conditions that are completely dry:

(i) the cross-wind component, including gusts, exceeds 20 KT;

(ii) the downwind component, including gusts, exceeds 5 KT.

(b) for runway conditions that are not completely dry;

(i) the cross-wind component, including gusts, exceeds 20 KT;

(ii) there is a downwind component.


Sometimes the issue is the excessive crosswind across the bay, especially the 34R threshold wind. The wind along RWY 07/25 could be 260/18 however the threshold winds at RWY 34L and R might be say 260/30.

If you wish to operate to higher crosswind criteria then lobby CASA to get the rules changed.

The other issue that needs to be considered is the safe management of traffic. If you run higher acceptance rates then you end landing up to say 45 per hour for several hours on 34// and then say 75 aircraft of these aircraft become departures and the achieved rate on a single departure runway is about 25 (or less if there is a significant number of aircraft that "require" 34L for departure). Do the maths on that, and then add another 20-25 arrivals per hour into the mix.

Build RWY 25L, fill in the northern part of the moat, that is, south of TWY Lima.

George Glass 13th Jul 2019 14:46

Missy , you’ve hit the nail on the head but for all the wrong reasons. In Australia ATC rules can cost operators millions, trash the travel plans of tens of thousands of customers and drive operating crew slowly mad and the response is a shrug of the shoulders. And no sense of irony or absurdity. I’m glad I’m at the tail end of my career. Lord only knows how the systems going to look in 20 years time.

VH-VIN 13th Jul 2019 19:33


Originally Posted by George Glass (Post 10517770)
Missy , you’ve hit the nail on the head but for all the wrong reasons. In Australia ATC rules can cost operators millions, trash the travel plans of tens of thousands of customers and drive operating crew slowly mad and the response is a shrug of the shoulders. And no sense of irony or absurdity. I’m glad I’m at the tail end of my career. Lord only knows how the systems going to look in 20 years time.

Same is happing in NZ, I don't know how you airline guys keep sane!!! I suppose you just do what you have to and try not to think of madness of it all. I am sure in other 20 years it will come right and common sense will prevail but not for a while by the looks of it!!!

shortshortz 13th Jul 2019 21:18


Originally Posted by VH-VIN (Post 10517895)
Same is happing in NZ, I don't know how you airline guys keep sane!!! I suppose you just do what you have to and try not to think of madness of it all. I am sure in other 20 years it will come right and common sense will prevail but not for a while by the looks of it!!!

NZ isn't really even close. There was a 288 minute COBT delay yesterday for some guys into YSSY and you would still then receive airborne delays. YMML average delay would be 5 minutes weekdays and with one RWY you'd be happy with only a 10min delay, taking off from YMLT and getting a 30 minute delay isn't abnormal. NZ pilots jump up and down if they're slowed down by a minute or two.

tomuchwork 13th Jul 2019 23:10


Originally Posted by ManaAdaSystem (Post 10517168)
What’s going on? Canselling MEL and CBR because it may get windy?
17 kts is too much?
Weird way of doing things.

Has nothing to do with the pilots(as always normally), but when burocrats start making rules then it ends like this.

I was flying for long gone Ansett way back(it is actually nearly 19 years, my god, time flies), still remember some of the weird rules they had down under(hated the rules, loved the country). To much influence from their "parents", the brits I must clearly say. Not good, but hey, thats what they know.

Aviation got overregulated over the past(nearly) 2 decades, it did not became better(of course my opinion, as always, but that is what I see in direct comparison). Long time that I am back to Europe and as well here some aviation authorities just do not get it right - take some Italian airports as an example(other nations are not much better, but not to make this post to long lets go with (in)famous ENAC and some of it''s multiple stupid decissions) - there is for instance Treviso(LIPH) that can only accept a maximum of 15 kts x-wind(single runway outfit with usual landing on ILS07 and take off 25. No hills, mountains that affect the runway really. It is just like this. Are italian pilots generally bad? Nope. But their authority is not one of the most effective ones(let's take it like this to say it in a nice way). Treviso is not the only airport that has not so clever rules like that.

We could go on with airports in France, their attitude towards the #1 aviation language, ENGLISH, plus some other rules, UK, SPAIN....

Over the years I learned just to take a deep breath when they come up with something "new" to make my life easy and SAFE(the new magic word that makes everything right), usually it just causes delay. Good for a controller, he goes home anyway. Not so good for us pilots, we are stuck where we usually are, in the flightdeck till time runs out and it becomes game over. Normally they alway manage it that we just make it in time, still, the days become long due to "effective" rules. Just take this "sticking with filed flightlevel" bs that they are pulling here in Europe now. Like that makes any sense in a summer full of bad thunderstorms and the NEED for an effective ATC instead of one that is pulling out (idiotic) rules out of their hat. But that is "modern" aviation nowadays.

To make you fell better - it will just go worse. Overregulation tends to have that effect.

VH-VIN 14th Jul 2019 00:30


Originally Posted by shortshortz (Post 10517938)
NZ isn't really even close. There was a 288 minute COBT delay yesterday for some guys into YSSY and you would still then receive airborne delays. YMML average delay would be 5 minutes weekdays and with one RWY you'd be happy with only a 10min delay, taking off from YMLT and getting a 30 minute delay isn't abnormal. NZ pilots jump up and down if they're slowed down by a minute or two.

Glad I don't fly in Aussie anymore then!!!

sunnySA 14th Jul 2019 01:11


Originally Posted by George Glass (Post 10517770)
Missy , you’ve hit the nail on the head but for all the wrong reasons. In Australia ATC rules can cost operators millions, trash the travel plans of tens of thousands of customers and drive operating crew slowly mad and the response is a shrug of the shoulders. And no sense of irony or absurdity. I’m glad I’m at the tail end of my career. Lord only knows how the systems going to look in 20 years time.

George, what are these particular or peculiar Australian ATC rules that you are referring to? Can you give the forum some specific examples ?

Tankengine 14th Jul 2019 01:31


Originally Posted by sunnySA (Post 10518022)
George, what are these particular or peculiar Australian ATC rules that you are referring to? Can you give the forum some specific examples ?

How about : mandating single runway ops at Sydney when the parallel runways are within the crosswind limits of pretty well every Airline aircraft in Australia?

davidclarke 14th Jul 2019 01:35

Curious. If RWY25 had high speed taxiways would this increase the hourly movements? The investment would be warranted no?

George Glass 14th Jul 2019 03:31

Sunny, see GreenGhost39’s post.
The rule that causes the grief at Sydney is the forecast maximum crosswind on 16/34. ATC goes to single runway ops. when the crosswind is nowhere near aircraft operating limits. In Melbourne a 21 knot southerly with a 6 knot tailwind on 27 will mean 45 minutes COBT delay plus airborne holding for a CBR-MEL flight. Given the magnitude of the mayhem these rules cause on a routine basis isn’t it possible that the rules are a horses ar#e? Maybe its just me.

Colonel_Klink 14th Jul 2019 03:34


Originally Posted by shortshortz (Post 10517938)
NZ isn't really even close. There was a 288 minute COBT delay yesterday for some guys into YSSY and you would still then receive airborne delays.

I do not want to come across as ignorant - but that sort of comment does make me question the whole point of the Ground Delay Program. My experience shows me that on days when you get a 2 hour COBT delay, you do tend to get more holding than the standard traffic allowance.

I wonder what the airlines would prefer - having their flight depart on time and possibly get 90-120 minutes of airborne holding with the possibility of a diversion, or a 3 hour COBT delay still with 30 plus minutes airborne holding.

The two hours of airborne holding would result in less of a delay to that aircraft for the airline, but obviously at the cost of several Tonnes of fuel and the increased risk of a diversion.

George Glass 14th Jul 2019 03:57

Colonel, the fact that you can quote numbers like that without the slightest hint of irony says it all. Is there anywhere else on the planet where this could be considered normal? Or is it really the massive snafu it appears to be?

sunnySA 14th Jul 2019 04:11


Originally Posted by George Glass (Post 10518056)
Sunny, see GreenGhost39’s post.
The rule that causes the grief at Sydney is the forecast maximum crosswind on 16/34. ATC goes to single runway ops. when the crosswind is nowhere near aircraft operating limits. In Melbourne a 21 knot southerly with a 6 knot tailwind on 27 will mean 45 minutes COBT delay plus airborne holding for a CBR-MEL flight. Given the magnitude of the mayhem these rules cause on a routine basis isn’t it possible that the rules are a horses ar#e? Maybe its just me.

We all know that the crosswind is nowhere near the aircraft operating limits (but may well be beyond the first officers operating limits, but that's another story for another day) however the rule-set is from CASA. Lobby CASA to get the rules changed.

One thing that has changed in the last 20-25 years is the increased use of wind analysers that accurately display the instantaneous, mean (2 minute average) and peak winds. Wind back 20 years, single anemometer and wind socks, there is a LOT more data available to the TWR ATCs. Perhaps there needs to be more education around the wording "including gusts" and how this relates to the instantaneous, mean and peak winds, which winds are used for which purpose.

For information, the RWY 34L anemometer is owned (and maintained) by the BoM and is the one recorded on the METAR and SPECI. There will often be major differences between this wind and the ATIS wind (for obvious reasons).

Also, COBT doesn't mean no holding, it should mean significantly less holding than a "free for all", the current rules around COBT do need changing and ACDM should result in better outcomes. Recent feedback provided by Industry to Airservices has resulted in an adjustment to have more aircraft airborne to "keep pressure on the system" to maximise throughput but always having aircraft in the pipeline.

George Glass 14th Jul 2019 04:34

Sunny, is there any chance that anybody in ATC is ever going to admit that the system is broken? It’s blindingly obvious to everybody at the operational level and to anybody who travels regularly up and down the east coast. It’s broken. It doesn’t work. It fails in its primary mission of moving people from point A to B. It is at its absolute limit now and unless something radical is done soon its all downhill from here.

Maggie Island 14th Jul 2019 05:47


Originally Posted by George Glass (Post 10518080)
Sunny, is there any chance that anybody in ATC is ever going to admit that the system is broken? It’s blindingly obvious to everybody at the operational level and to anybody who travels regularly up and down the east coast. It’s broken. It doesn’t work. It fails in its primary mission of moving people from point A to B. It is at its absolute limit now and unless something radical is done soon its all downhill from here.

ATC don’t make the rules, at YSSY acceptance rates and noise abatement (largely dictated by the councils) are almost as much of a pain as ‘adverse’ wx. Most controllers would gladly tell you their gripes regarding the inherent inefficiencies of CASA (not that our whingeing will change anything:p)

Outtahere 14th Jul 2019 06:38


Originally Posted by George Glass (Post 10518065)
Colonel, the fact that you can quote numbers like that without the slightest hint of irony says it all. Is there anywhere else on the planet where this could be considered normal? Or is it really the massive snafu it appears to be?

Yes, China. In their defense 90% of the countries airspace is rigidly controlled by the military & they deal with far more adverse weather than Australian ATC do. And they are a developing country. We have no such defense.

So yes, it is a massive snafu & an embarassment to those of us who ply the aviation trade outside Australia.

Colonel_Klink 14th Jul 2019 07:59

And for a further update...

ATIS at 18:00 Sunday night has the wind as 250/10 and still only using one Runway.

The first NOTAM for YSSY says that aircraft can expect airborne holding of 40-60 minutes.

Something is significantly broken with the way things are done in this country....


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