BA 744 Diversion to MAN (Merged)
the lunatic fringe
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If I may just point out that the map display does not 'know' the flight plan,
The Map display gets its information direct from the FMC. So the route displayed to the passengers is the actual route taken.
L337
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Wrong:
The Map display gets its information direct from the FMC. So the route displayed to the passengers is the actual route taken.
The Map display gets its information direct from the FMC. So the route displayed to the passengers is the actual route taken.
The IFE system on the BA 744 (Rockwel Collins and not very good) does indeed start off with a great circle route, whih is then progressively over written with the actual track.
Edited due poor syntax
Last edited by Mini mums; 8th Mar 2005 at 17:56.
the lunatic fringe
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is then progressively over written with the actual track.
Either way it is a bit off topic. Let me go and have another look when I next operate. I'll pm you to keep it out the thread.
L337
Too mean to buy a long personal title
L337: So am I not correct in saying. "the route displayed to the passengers is the actual route taken"?
The dotted line for "projected route to destination" appears to be the great circle projection having nothing to do with the actual flight plan route.
I have tried to stay off this thread as it's more a place for professional pilots rather than us SLF, frequent or otherwise. But this at least is something that I can report observing very frequently.
Está servira para distraerle.
My goodness, my gracious, good golly gosh.After all this very confusing stuff as to what you might be seeing on the back of your seat, is it not a minor miracle that any of the wonderful pilots flying today even manage to get from A to B without passing Beachy Head in an uproar with sextant upeld and wangling? Drifting down the rhumb line, but not, with me.
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Ba268 pax re the "southerly route" I came out of SFO a day later our route took us just north of Denver, over ORD across lake Michigan then due north of Grand Rapids and Toronto finally making Oceanic just to the NW of Gander.
The winds that night were much more favourable at this latitude than going further North towards the pole and Churchill/Yellow Knife, looking at the sig weather chart it "appeared" that the jet stream we used had been at this latitude for a few days, certainly since we had left LHR for SFO 2 days before.
I thank you for your honest and open account.
The winds that night were much more favourable at this latitude than going further North towards the pole and Churchill/Yellow Knife, looking at the sig weather chart it "appeared" that the jet stream we used had been at this latitude for a few days, certainly since we had left LHR for SFO 2 days before.
I thank you for your honest and open account.
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...rather than flying across the Atlantic on 3 engines (has there ever been a successful landing of a 747 on water?)
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What are the symptoms of a surge?
Is the banging & vibration a normal feature of a surge? - and is it normal for an engine to cause the same noises & vibration if the pilot tries to re-start it?
Also, does anyone (any Heathrow service engineers out there?) know what was actually wrong with this engine? I had a quick look at it as I walked down the front aircraft steps at Manchester, but I couldn't see any obvious sign of damage. Was it just a sticking valve (or something similar)? - or was there any physical damage?
Hope by now that you have received massive compensation for possible aortic imbalance perhaps caused by decision of BA and/or, its servants..
Está servira para distraerle.
You might call an aortic imbalance a surge. One which I would prefer to defer. If you were in First Class, write the little ones a stroppy note and see what comes from it. It worked for me, when I lay on a beach all day in Barbados while Concorde stayed stuck in London. Oh yes, we shall leave the 'who was flying the thing' for another time.
quote:Is the banging & vibration a normal feature of a surge? - and is it normal for an engine to cause the same noises & vibration if the pilot tries to re-start it?
Does anyone know the answer to this?
Also, does anyone (any Heathrow service engineers out there?) know what was actually wrong with this engine? I had a quick look at it as I walked down the front aircraft steps at Manchester, but I couldn't see any obvious sign of damage. Was it just a sticking valve (or something similar)? - or was there any physical damage?
Does anyone know the answer to this?
Also, does anyone (any Heathrow service engineers out there?) know what was actually wrong with this engine? I had a quick look at it as I walked down the front aircraft steps at Manchester, but I couldn't see any obvious sign of damage. Was it just a sticking valve (or something similar)? - or was there any physical damage?
which in turn shows all the info about engine failures in general as well as surges from a doucment published by the FAA, including supporting video
Yes for a surge alone the engine will rock and vibrate simply because the surge is localized and rotates backwards to the spinning rotor at about 1/4 rotor speed while at the same time producing pressure pulses at a rate of about 7 per second.. Since the mounts are single point in the top front, this rotating pressure wave causes the engine and pylon to shake and in turn the wing and passengers as well. It's all very short lived until the pilot retards the throttle and reduces the pressures in the engine.
The sparks seen could either be from rubbing of the blades against a case or moe likely a few loose bits in the engine.
Often the F/A s as well as the passengers are not familar with this and it can create some apprehension although it is typically ho-hum to the aircraft.
Está servira para distraerle.
Yes indeed, my goodness and my gracious, I never did hear an aircraft go Ho Hum, at least not out of the jungle and that was a rumble tum too.
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Yes for a surge alone the engine will rock and vibrate simply because the surge is localized and rotates backwards to the spinning rotor at about 1/4 rotor speed while at the same time producing pressure pulses at a rate of about 7 per second.. Since the mounts are single point in the top front, this rotating pressure wave causes the engine and pylon to shake and in turn the wing and passengers as well. It's all very short lived until the pilot retards the throttle and reduces the pressures in the engine.
This is a long and entertaining thread which I have been reading with great interest.
However, I think it is about time that this crew was complimented for a job well done. The flight was conducted safely, efficiently and professionally.
Part of a professional pilot's job is to operate economically for the company with safety being the overriding consideration and this is precisely how this crew operated.
Having to deal with even a "technical" emergency at the end of a 9/10 hour flight on three engines cannot have been easy and I think the crew should be commended for acting in the correct manner.
In conclusion, I say, WELL DONE!
However, I think it is about time that this crew was complimented for a job well done. The flight was conducted safely, efficiently and professionally.
Part of a professional pilot's job is to operate economically for the company with safety being the overriding consideration and this is precisely how this crew operated.
Having to deal with even a "technical" emergency at the end of a 9/10 hour flight on three engines cannot have been easy and I think the crew should be commended for acting in the correct manner.
In conclusion, I say, WELL DONE!
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I find it incredible that this type of decision could have been made!! The possibility of continuing on three engines is meant to facilitate airlines to continue onto a 'suitable' airport, i.e maintenance wise, logistics, etc. To argue that from the west coast of the USA to the east coast, onto Canada and over the north Atlantic to the UK, their are no 'suitable airports' is obsered! A 2nd eng failure over the north Atlantic, could have been a possibility. And then, I am afraid he would have to had called a 'Mayday'. Expalin that to the paying pax!! What are we thinking here, economics or saftey?