• Our booking engine at tickets.railforums.co.uk (powered by TrainSplit) helps support the running of the forum with every ticket purchase! Find out more and ask any questions/give us feedback in this thread!

Aviation Discussion

Status
Not open for further replies.

Crawley Ben

Member
Joined
14 Jul 2011
Messages
490
Location
Crawley, West Sussex
Norwegian are ending their service between Gatwick & Singapore as of Jan 2019.

Being mentioned/rumoured elsewhere that a new route to Rio de Janeiro will be added in its place. Nothing official regarding the latter as yet.

Cheers

Ben
 
Sponsor Post - registered members do not see these adverts; click here to register, or click here to log in
R

RailUK Forums

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Actually, you’re both wrong!

Diamond time exists in plenty of places. That is inserted to schedules purely to help punctuality.

But between West Allerton and Mossley Hill it appears to be Circle time, which is pathing allowance. This is to make the timetable work.

(There’s also box time, which is engineering allowance for planned speed restrictions, and passenger differential which is similar to performance allowance (diamond) )
Help me with the difference?

Sorry to be dense.
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Norwegian are ending their service between Gatwick & Singapore as of Jan 2019.

Being mentioned/rumoured elsewhere that a new route to Rio de Janeiro will be added in its place. Nothing official regarding the latter as yet.

Cheers

Ben

That's a shame, but there's pretty stiff competition from European and ME4 on that route, often with A380s (Lufthansa, BA, EK, AF maybe). Chasing poor yields.

Norwegian were being advertised in Argentina recently. Not very heavily. In fact, I saw adverts of Aerolineas Argentinas and LATAM who were having very cut throat sales heavily marketed on big billboards, buses etc. I saw 2 adverts for Norwegian, small and on the railway station.

The currency is currently crashing fast. This will surely help in ward tourism, but not Argentinians going outward.

If you don't want to change in America with all the paperwork/ESTA business (or can't), then options from Europe are a bit more limited and don't appear terribly cheap.
 

Bald Rick

Veteran Member
Joined
28 Sep 2010
Messages
29,070
Help me with the difference?

Herewith a Bald Rick essay.

Engineering Allowance (Box time) [x] is there to cater for temporary speed restrictions imposed following engineering work, usually track renewal. In theory, these allowances could be inserted into the timetable wherever the work is, but as the speed restrictions typically last for 1-3 weeks, this would mean a lot of timetabling work. Therefore, they are typically inserted into the timetable over a longer section of the journey, because on average there is likely to be a temporary speed restriction on that stretch at any one time. If a service travels on a section of line where engineering allowance is applied, it must be included in the schedule. (The ex Southern region did things differently, and even now with the exception of some services to Waterloo, none have any engineering allowances applied). Engineering allowances are set by Network Rail.

Pathing Allowance (Circle time) (x) is there to make the timetable function, and is one of the key tools for timetable planners when trying to get all the services to fit together. It can be applied anywhere, but most often on the approaches to conflicting junctions. If, say, two trains are scheduled to arrive at a junction conflict too close to each other such that the first service would not be clear of the junction by the time the second is due to arrive, AND neither of them can be altered to depart its previous station earlier or later to make it work, then pathing allowance is inserted to the schedule of the second train on the approach to the junction conflict such that it will cross the junction when it is clear. (Obviously the signalling system is the method for actually keepin the trains a safe distance apart). Pathing allowance is also used where faster trains are scheduled to catch up slower trains on a given stretch of track. The West Anglia Main Line between Bishops Stortford and Tottenham Hale is a great example of that. Pathing allowances can be proposed by either Network Rail or a TOC, but ultimately NR has the final say on making the whole timetable work. The passenger experiences this as slow running, red signals, ‘waiting for an available platform’ or ‘congestion’, but yet still arriving on time.

Performance allowance (Diamond time) <x> is applied where a train operator determines that a given service (or group of services) is likely to be delayed compared to its base schedule for unspecified reasons. This can be applied anywhere, and is within the gift of the train operator. It is more often used by long distance operators. Application of performance allowance is often a good indicator of where a timetable doesn’t quite ‘work’, but no one is quite sure why.

Passenger differential is simply where the published time of arrival of a service in the public timetable is later than in the working timetable. Again this can be anywhere, but is usually at the service destination or at a key station. This is entirely in the gift of the train operators.


The first two categories are essential to make the timetable work reliably, ie in theory if there were no unplanned incidents that cause a train to be delayed you would still need these categories to ensure all trains ran punctually.

The last two categories are there to deal with the principle that there are unplanned incidents, every day, and thus helps the service run closer to the advertised time. These are what are colloquially known on this forum as ’padding’ and (to bring this post back on topic :!:) is what airlines use in their schedules.
 
Joined
8 Apr 2009
Messages
249
Location
Sheffield
Door open to door closed. Pioneered by South West Airlines in the US. Although that is per schedule, and the schedules usually have about 15 minutes performance allowance (we in the railway call it diamond time, most people on this forum call it ‘padding’) on each short haul trip. So the 25 minutes is usually longer.

It’d be a lot easier for us ground dispatchers if it was door to door times!

Our 25 minutes starts as soon as the anti-cols are off and ends with the pushback movement of the aircraft. Can be extremely frustrating when doors are closed and there is no movement for 4/5 minutes!
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Herewith a Bald Rick essay.

Engineering Allowance (Box time) [x] is there to cater for temporary speed restrictions imposed following engineering work, usually track renewal. In theory, these allowances could be inserted into the timetable wherever the work is, but as the speed restrictions typically last for 1-3 weeks, this would mean a lot of timetabling work. Therefore, they are typically inserted into the timetable over a longer section of the journey, because on average there is likely to be a temporary speed restriction on that stretch at any one time. If a service travels on a section of line where engineering allowance is applied, it must be included in the schedule. (The ex Southern region did things differently, and even now with the exception of some services to Waterloo, none have any engineering allowances applied). Engineering allowances are set by Network Rail.

Pathing Allowance (Circle time) (x) is there to make the timetable function, and is one of the key tools for timetable planners when trying to get all the services to fit together. It can be applied anywhere, but most often on the approaches to conflicting junctions. If, say, two trains are scheduled to arrive at a junction conflict too close to each other such that the first service would not be clear of the junction by the time the second is due to arrive, AND neither of them can be altered to depart its previous station earlier or later to make it work, then pathing allowance is inserted to the schedule of the second train on the approach to the junction conflict such that it will cross the junction when it is clear. (Obviously the signalling system is the method for actually keepin the trains a safe distance apart). Pathing allowance is also used where faster trains are scheduled to catch up slower trains on a given stretch of track. The West Anglia Main Line between Bishops Stortford and Tottenham Hale is a great example of that. Pathing allowances can be proposed by either Network Rail or a TOC, but ultimately NR has the final say on making the whole timetable work. The passenger experiences this as slow running, red signals, ‘waiting for an available platform’ or ‘congestion’, but yet still arriving on time.

Performance allowance (Diamond time) <x> is applied where a train operator determines that a given service (or group of services) is likely to be delayed compared to its base schedule for unspecified reasons. This can be applied anywhere, and is within the gift of the train operator. It is more often used by long distance operators. Application of performance allowance is often a good indicator of where a timetable doesn’t quite ‘work’, but no one is quite sure why.

Passenger differential is simply where the published time of arrival of a service in the public timetable is later than in the working timetable. Again this can be anywhere, but is usually at the service destination or at a key station. This is entirely in the gift of the train operators.


The first two categories are essential to make the timetable work reliably, ie in theory if there were no unplanned incidents that cause a train to be delayed you would still need these categories to ensure all trains ran punctually.

The last two categories are there to deal with the principle that there are unplanned incidents, every day, and thus helps the service run closer to the advertised time. These are what are colloquially known on this forum as ’padding’ and (to bring this post back on topic :!:) is what airlines use in their schedules.

Thanks a lot for this, very interesting read. I had no idea there was such an intricate web of codes, makes a huge amount of sense.

The problem is, with your username I can't help but read it in Baldrick's voice and it diminishes the meaning somewhat, I just expect "I have a cunning plan..." to crop up...
 

Bald Rick

Veteran Member
Joined
28 Sep 2010
Messages
29,070
Thanks a lot for this, very interesting read. I had no idea there was such an intricate web of codes, makes a huge amount of sense.

The problem is, with your username I can't help but read it in Baldrick's voice and it diminishes the meaning somewhat, I just expect "I have a cunning plan..." to crop up...

That’s alright. But with your username I can’t help but think you are rampaging across Europe... and generally losing!
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
That’s alright. But with your username I can’t help but think you are rampaging across Europe... and generally losing!
I wouldn't worry, that's more or less what I do. Except most of my rampaging these days is done in various corners of eastern and southern Africa.
 

fowler9

Established Member
Joined
29 Oct 2013
Messages
8,367
Location
Liverpool
Can anyone confirm the correct pronunciation of the Argosy. Had a customer on the other day saying he lived on Ar-goes-y Close. I kept saying Ar-gos-y Close and he kept trying to correct me. He was an RAF airman but I was having none of it. Ha ha.
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Ha ha, sounds more interesting than my rampaging around one office in South Liverpool.

Can be. Depends on the assignment. Can also lead you to be staying in some truly troubling places and have weapons pointed up your nose on more than one occasion. Leads to some interesting journeys, though.

Next up is KQ's dreamliner followed by their E190 for a long leg stretch.
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Can anyone confirm the correct pronunciation of the Argosy. Had a customer on the other day saying he lived on Ar-goes-y Close. I kept saying Ar-gos-y Close and he kept trying to correct me. He was an RAF airman but I was having none of it. Ha ha.
If he's got a bigger gun, I would go with his pronunciation.
 

berneyarms

Established Member
Joined
26 Nov 2013
Messages
2,811
Location
Dublin
Aer Lingus adding Montreal and Minneapolis St Paul to their list of North American destinations from Dublin in 2019
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
B757, Bernyarms?

Primera are adding service from Madrid to EWR/YYZ/BOS. Can't help but feel they are really overstretching themselves...
 

gsnedders

Established Member
Joined
6 Sep 2015
Messages
1,472
B757, Bernyarms?

Primera are adding service from Madrid to EWR/YYZ/BOS. Can't help but feel they are really overstretching themselves...
Montreal is gonna be A321neoLR, Aer Lingus's first confirmed route for that. Still keeping their proper long-haul two-class cabin for it, lie-flat business and all (presumably 1+1?). Don't think I heard anything about equipment for Minneapolis?
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Montreal is gonna be A321neoLR, Aer Lingus's first confirmed route for that. Still keeping their proper long-haul two-class cabin for it, lie-flat business and all (presumably 1+1?). Don't think I heard anything about equipment for Minneapolis?

Just did a dummy booking - MSP is a 757, at least for now. Perhaps another candidate for A321NEOLR later? While searching for this I saw that EI committed to serve Hartford (Connecticut) for another 4 years.
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Can't help but Agree. They haven't had the best of starts with their UK long haul ops etc. Believe they are also adding long haul ops from Frankfurt too as well?

Cheers

Ben

Not just Frankfurt with a daily New York (among others), and then also Berlin, and also Brussels discussed here before.

With the rocky start out of STN, cancelling BHX altogether, and now this. Hmm... I won't be booking tickets.
 

gsnedders

Established Member
Joined
6 Sep 2015
Messages
1,472
Just did a dummy booking - MSP is a 757, at least for now. Perhaps another candidate for A321NEOLR later? While searching for this I saw that EI committed to serve Hartford (Connecticut) for another 4 years.
EI's 757s are all leased, are they not? [Edit: yes, all 4 are wet-leased from ASL Airlines Ireland.]
 

berneyarms

Established Member
Joined
26 Nov 2013
Messages
2,811
Location
Dublin
EI's 757s are all leased, are they not? [Edit: yes, all 4 are wet-leased from ASL Airlines Ireland.]
They are indeed leased from ASL, but crewed by Aer Lingus cabin crew and a mix of ASL and seconded Aer Lingus flight deck crew.

It’s quite incredible to see the range of North American destinations from Dublin now - a long way from the days of only Boston, Chicago and JFK!!
 

Bald Rick

Veteran Member
Joined
28 Sep 2010
Messages
29,070
Not just Frankfurt with a daily New York (among others), and then also Berlin, and also Brussels discussed here before.

With the rocky start out of STN, cancelling BHX altogether, and now this. Hmm... I won't be booking tickets.

Anyone on the forum used Primula Air yet?
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
They are indeed leased from ASL, but crewed by Aer Lingus cabin crew and a mix of ASL and seconded Aer Lingus flight deck crew.

It’s quite incredible to see the range of North American destinations from Dublin now - a long way from the days of only Boston, Chicago and JFK!!

I used Dublin airport to travel to the States a few weeks ago. Massive US pre clearance facility, very impressive. Huge number of TATL flights to a good range of destinations. Flight out to JFK was rammed full.

767s are really showing their age...
 

atillathehunn

Established Member
Joined
6 Jan 2010
Messages
1,433
Location
NL
Anyone on the forum used Primula Air yet?

I think we would remember the complaints rolling in. They really get a lot of flak, media and TripAdvisor, and for very legitimate reasons. I also see their back to using a standard 737-800 necessitating a stop in KEF on the way over the pond. For pretty much the same money, you can fly a proper airline.
 

ian959

Member
Joined
9 May 2009
Messages
483
Location
Perth, Western Australia
Some time ago a question was asked about loads on the Qantas MEL-PER-LHR service. Following is the data for August:

Pax: 13,397
Seats: 14,632
Load factor Total: 0.92
Load factor Outbound: 0.94
Load factor Inbound: 0.89

Pax originating from MEL: 0.26
Pax originating from PER: 0.74

Qantas are apparently saying it is the most profitable international service they have. The premium classes load factor overall is 96% (business and premium economy)
 

Shaw S Hunter

Established Member
Joined
21 Apr 2016
Messages
2,912
Location
Sunny South Lancs
Some time ago a question was asked about loads on the Qantas MEL-PER-LHR service. Following is the data for August:

Pax: 13,397
Seats: 14,632
Load factor Total: 0.92
Load factor Outbound: 0.94
Load factor Inbound: 0.89

Pax originating from MEL: 0.26
Pax originating from PER: 0.74

Qantas are apparently saying it is the most profitable international service they have. The premium classes load factor overall is 96% (business and premium economy)

Impressive numbers! It does suggest some seriously suppressed demand from Perth to/from the UK which a non-stop flight seems to be releasing. It will be interesting to see what happens over time ie are people happy to make repeated journeys with a nearly 17 hour flight duration. If the answer to that is positive one can only wonder how the market would respond if it ever becomes commercially viable to fly non-stop between London and Australia's eastern cities.
 
Status
Not open for further replies.

Top