The BA Cloud!
Jul 27, 2012, 6:00 am
#241
Original Poster
Join Date: Nov 2010
Location: Bristol, UK
Programs: HH D, Rad VIP, Marriott G
Posts: 5,357
The DO is still in planning stages so you haven't missed anything yet...and of course we do :-:expect:-: your attendance
Details so far are here:
http://www.flyertalk.com/forum/19005611-post228.html
So, that makes the list so far:
Definitely attending:
BotB
henkybaby
Stez
Yahillwe
Possible (or Yeah, but No, but Yeah, but No):
PETER01
PanGalactic (after some arm twisting and assurances to his SWMBO)
Others?
Jul 27, 2012, 6:10 am
#242
Original Poster
Join Date: Nov 2010
Location: Bristol, UK
Programs: HH D, Rad VIP, Marriott G
Posts: 5,357
I'm all up for getting wet and being in the middle of some big storms which will be interesting enough...just need to be careful about distances with Tornadoes.
We won't have the same kit a true storm watching crowd will have...such as radar and live feeds to weather info so can't quite get as close as they would due to danger involved...but we can get close enough that it will be EXCITING...that much I can guarantee ^
After all this is meant to be a 'bucket list' item and/or the FT equivalent to a 'mid life crisis' points/miles extravaganza with some fun and excitement. ^
Hope that balance sounds right?
Jul 27, 2012, 6:19 am
#243
Original Poster
Join Date: Nov 2010
Location: Bristol, UK
Programs: HH D, Rad VIP, Marriott G
Posts: 5,357
Back to the pics...thanks for posting this one Stez ^
Some textbook Cumulus in this photo with the uniform, flat dark grey bases and strong white cauliflower type tops. ^
The interesting thing in this photo is the shear that is developing in the vertical atmosphere...the lower heights (surface up to say 4000 feet AGL) is unstable but no strong wind shear...(as the Cumulus is developing fine and the tops are not being sheared)...but the Altocumulus higher up is being sheared quite a bit by proportionally much stronger horizontal winds and will develop into Lenticular clouds if the strong wind at height continues...
So would be quite bumpy around 7000 - 12,000 foot AGL in this picture...
A good Summer cloud pic. ^ EDIT: Oops...I mean Winter picture (damn hemispheres messing with my mind... )
Some textbook Cumulus in this photo with the uniform, flat dark grey bases and strong white cauliflower type tops. ^
The interesting thing in this photo is the shear that is developing in the vertical atmosphere...the lower heights (surface up to say 4000 feet AGL) is unstable but no strong wind shear...(as the Cumulus is developing fine and the tops are not being sheared)...but the Altocumulus higher up is being sheared quite a bit by proportionally much stronger horizontal winds and will develop into Lenticular clouds if the strong wind at height continues...
So would be quite bumpy around 7000 - 12,000 foot AGL in this picture...
A good Summer cloud pic. ^ EDIT: Oops...I mean Winter picture (damn hemispheres messing with my mind...
)
Last edited by BotB; Jul 27, 2012 at 6:58 am Reason: Winter in AUS is Summer in UK issue
Jul 27, 2012, 1:06 pm
#244
FlyerTalk Evangelist
Join Date: Mar 2010
Location: JER
Programs: BA Gold/OWE, several MUCCI, and assorted Pensions!
Posts: 32,145
Good/Bad time of year for us. We'll be in VA, watching it on the News channels and hoping it doesn't get too far up our way!!
…. like it did in September last year.
…. like it did in September last year.
Jul 27, 2012, 1:21 pm
#245
Suspended
Join Date: Oct 2011
Location: Her Majesty's United Kingdom
Programs: BA Gold, BA Lounge Rats, BA Audit Survivors, CW Kitchen Defender, CX Noodle Connoisseurs Club
Posts: 5,955
I picked the prefect time to nip out in to the garden for a cigarette!
Guess who just flew right over my back garden!!!!
But, damn this slow camera on the iphone
Jul 27, 2012, 1:24 pm
#247
Suspended
Join Date: Oct 2011
Location: Her Majesty's United Kingdom
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Posts: 5,955
Jul 28, 2012, 7:31 am
#248
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Join Date: Dec 2001
Location: A metal nomad
Programs: Mucci des Delices Exotiques,Order of the Platinum Hairbrush,Her Royal Diamond
Posts: 23,728
You can even bring 2 bags Yahillwe
The DO is still in planning stages so you haven't missed anything yet...and of course we do :-:expect:-: your attendance
Details so far are here:
http://www.flyertalk.com/forum/19005611-post228.html
So, that makes the list so far:
Definitely attending:
BotB
henkybaby
Stez
Yahillwe
Possible (or Yeah, but No, but Yeah, but No):
PETER01
PanGalactic (after some arm twisting and assurances to his SWMBO)
Others?
The DO is still in planning stages so you haven't missed anything yet...and of course we do :-:expect:-: your attendance
Details so far are here:
http://www.flyertalk.com/forum/19005611-post228.html
So, that makes the list so far:
Definitely attending:
BotB
henkybaby
Stez
Yahillwe
Possible (or Yeah, but No, but Yeah, but No):
PETER01
PanGalactic (after some arm twisting and assurances to his SWMBO)
Others?
Jul 28, 2012, 7:45 am
#250
Suspended
Join Date: Oct 2011
Location: Her Majesty's United Kingdom
Programs: BA Gold, BA Lounge Rats, BA Audit Survivors, CW Kitchen Defender, CX Noodle Connoisseurs Club
Posts: 5,955
Jul 28, 2012, 7:55 am
#251
FlyerTalk Evangelist
Join Date: Dec 2001
Location: A metal nomad
Programs: Mucci des Delices Exotiques,Order of the Platinum Hairbrush,Her Royal Diamond
Posts: 23,728
I don't need to google anything done by jackass, it is always idiotic and crazy. Can just imagine the worse.
Jul 28, 2012, 11:32 am
#252
Join Date: Nov 2011
Location: LHR Air Traffic Control
Programs: BAEC Silver
Posts: 875
BotB
It is generally understood that the vortex descends, but research has shown that it can begin rising again after a short delay.
Vortex separation can be applied in two ways. Currently, for arriving aircraft in the UK it is applied in terms of distance.
Therefore, when landing at LHR in, say, a 747, if there was another Heavy (B747, B777, B767, A340, A330) behind, it would be 4nm behind; if there was a Medium (A319/320/321, B737, E190) then it would be 5nm; a Small (E145, F70) then 6nm and so on.
This actually works against us when there are strong winds. If the aircraft are fixed distances apart, and there are strong headwinds, then the each aircraft is coming down the approach more slowly, and therefore the number of aircraft landing per hour goes down.
To visualise it, think of those stretches of motorway where you have to be '2 chevrons' apart. Imagine doing 70mph. Now imagine you have slowed down to 30mph, but still have to remain 2 chevrons apart....the number of vehicles passing a certain point on the road will be lower at 30mph than at 70mph.
We are working on a concept of separation arrivals by time, rather than distance, so that the landing rate remains constant in headwinds.
On departure, we provide separation by time, so if the following aircraft is a lesser category (i.e. Heavy followed by Medium/Small/Light) then we provide 2 minutes. If the first aircraft is an A380 we add one minute on, so Super followed by Heavy will be 2 mins, Super followed by Medium is 3 mins.
This time is increased by using different take off points for the two aircraft.
his is a great visualisation of why we have stack distances and times on airports...especially with the new A380 I believe the stack time is longer afterwards to ensure that no planes gets caught in one from the previously landed A380 or other aircraft...
The main problem as I understand it is that we do not have a good way to know if the wake turbulence (as it is also known as) will dissipate quickly or if it will 'move' vertically so as not to be a problem...the worry being that the turbulence continues, more or less, in the same path the following plane is taking due to the turbulence being trapped in a 'layer' from temperature variations such as you get with sonar or radar sometimes...maybe someone else better informed can comment further or correct my points here like Heathrow Tower?
The main problem as I understand it is that we do not have a good way to know if the wake turbulence (as it is also known as) will dissipate quickly or if it will 'move' vertically so as not to be a problem...the worry being that the turbulence continues, more or less, in the same path the following plane is taking due to the turbulence being trapped in a 'layer' from temperature variations such as you get with sonar or radar sometimes...maybe someone else better informed can comment further or correct my points here like Heathrow Tower?
Vortex separation can be applied in two ways. Currently, for arriving aircraft in the UK it is applied in terms of distance.
Therefore, when landing at LHR in, say, a 747, if there was another Heavy (B747, B777, B767, A340, A330) behind, it would be 4nm behind; if there was a Medium (A319/320/321, B737, E190) then it would be 5nm; a Small (E145, F70) then 6nm and so on.
This actually works against us when there are strong winds. If the aircraft are fixed distances apart, and there are strong headwinds, then the each aircraft is coming down the approach more slowly, and therefore the number of aircraft landing per hour goes down.
To visualise it, think of those stretches of motorway where you have to be '2 chevrons' apart. Imagine doing 70mph. Now imagine you have slowed down to 30mph, but still have to remain 2 chevrons apart....the number of vehicles passing a certain point on the road will be lower at 30mph than at 70mph.
We are working on a concept of separation arrivals by time, rather than distance, so that the landing rate remains constant in headwinds.
On departure, we provide separation by time, so if the following aircraft is a lesser category (i.e. Heavy followed by Medium/Small/Light) then we provide 2 minutes. If the first aircraft is an A380 we add one minute on, so Super followed by Heavy will be 2 mins, Super followed by Medium is 3 mins.
This time is increased by using different take off points for the two aircraft.
Jul 28, 2012, 11:48 am
#253
Join Date: Nov 2011
Location: LHR Air Traffic Control
Programs: BAEC Silver
Posts: 875
A few more photos, I crave your indulgence!
I apologise for these, not many clouds, but I love the photos! Taken at Duxford's Flying Legends airshow.
Heathrow in the snow.......
Snowing here:
Just finished snowing here:
The rest are from Farnborough Airshow, both this year and 2010. Although both shows had changeable weather, it meant some pretty good visual effects.....
V-22 Osprey showing up the condensation from the prop tips...
A380
T-50 (Korean Air Force trainer)
F/A-18F Hornet
Eurofighter Typhoon
This one was on a high-speed pass, it was a straight run, no g being pulled, pushing towards the sound barrier, you can see the condensation resulting from the build up of pressure around the cockpit and under the tail:
Even the Boeing 787 managed to get some!
SAAB Gripen
Artificial clouds!
I apologise for these, not many clouds, but I love the photos! Taken at Duxford's Flying Legends airshow.
Heathrow in the snow.......
Snowing here:
Just finished snowing here:
The rest are from Farnborough Airshow, both this year and 2010. Although both shows had changeable weather, it meant some pretty good visual effects.....
V-22 Osprey showing up the condensation from the prop tips...
A380
T-50 (Korean Air Force trainer)
F/A-18F Hornet
Eurofighter Typhoon
This one was on a high-speed pass, it was a straight run, no g being pulled, pushing towards the sound barrier, you can see the condensation resulting from the build up of pressure around the cockpit and under the tail:
Even the Boeing 787 managed to get some!
SAAB Gripen
Artificial clouds!
Jul 28, 2012, 12:18 pm
#255
FlyerTalk Evangelist
Join Date: Mar 2010
Location: JER
Programs: BA Gold/OWE, several MUCCI, and assorted Pensions!
Posts: 32,145
Wheee ... Real aircraft, and great photos!
"Jet noise ... The sound of Freedom"
I will always remember when we moved to Waddington, and walked into the garden.
The OH sniffed the air and said "Ahhh, Avtur."
"Jet noise ... The sound of Freedom"
I will always remember when we moved to Waddington, and walked into the garden.
The OH sniffed the air and said "Ahhh, Avtur."