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Arthur Pewtey

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Viewing 15 posts - 721 through 735 (of 1,467 total)
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  • in reply to: Airbus A380 At 50 #564721
    Arthur Pewtey
    Participant

    MSN is Manufacturers Serial Number and is unique to that airframe and will stay with that airframe. Airbus uses sequential MSNs for all of its aircraft.

    in reply to: 787 news thread #564739
    Arthur Pewtey
    Participant

    I’m surprised they haven’t done all of that training already. They have had long enough to wait after all, they could have done all the training 5 times over.

    If there is work outstanding then it isn’t ready is it.

    in reply to: 787 news thread #564745
    Arthur Pewtey
    Participant

    Is it not ready for revenue service then? 🙂

    in reply to: General Discussion #288513
    Arthur Pewtey
    Participant

    No there is no magic about 70 mph but roads were considerably quieter when it was introduced.
    A system of variable speed limits would indeed be a good idea but drivers must taught to obey them otherwise they are pointless.

    I too am surprised as any increase in speed means an increase in fuel consumption. I no automotive engineer but doesn’t fuel consumption vary with the square of the speed?

    in reply to: 80 mph speed limit – why? #1873241
    Arthur Pewtey
    Participant

    No there is no magic about 70 mph but roads were considerably quieter when it was introduced.
    A system of variable speed limits would indeed be a good idea but drivers must taught to obey them otherwise they are pointless.

    I too am surprised as any increase in speed means an increase in fuel consumption. I no automotive engineer but doesn’t fuel consumption vary with the square of the speed?

    in reply to: General Discussion #288534
    Arthur Pewtey
    Participant

    Why does “doing 90+” qualify you as an “idiot”?

    Moggy

    Er… because the speed limit is 70 maybe? The problem with driving is that many if not most drivers have a rather over-inflated opinion of their own abilities.

    Sadly I think the great British driver will think that a 80mph limit is carte blanche to travel at 90mph. So do we wait a few years, lots of people drive at 90 so we put the limit up and so on……

    in reply to: 80 mph speed limit – why? #1873271
    Arthur Pewtey
    Participant

    Why does “doing 90+” qualify you as an “idiot”?

    Moggy

    Er… because the speed limit is 70 maybe? The problem with driving is that many if not most drivers have a rather over-inflated opinion of their own abilities.

    Sadly I think the great British driver will think that a 80mph limit is carte blanche to travel at 90mph. So do we wait a few years, lots of people drive at 90 so we put the limit up and so on……

    in reply to: Plane almost upside-down after co-pilot presses wrong button #564771
    Arthur Pewtey
    Participant

    The 747 was badly damaged after a 5g pull-out – not sure it went supersonic though. All for the want of an engine failure.

    in reply to: 787 news thread #564964
    Arthur Pewtey
    Participant

    The systems in the Stratocruiser would be much smaller and need a lot less power than those in the 787. The 787 must be 3 or 4 times heavier than a Startocruiser so using electrically powered brakes and providing sufficient air conditioning for nearly 300 people from bleedless engines is reasonably innovative in this day and age. The technology involved in the power generation systems on the 787 has indeed moved a long way since the 1940s. Even going back to electric start for such large engines is something which I think surprised many. Whether it works remains to be seen.:) Even the A350 isn’t going to follow Boeing’s lead in using largely electric systems.

    in reply to: 787 news thread #564976
    Arthur Pewtey
    Participant

    and 70 years ago, the Boeing Strato Cruiser had an even more electrically powered architecture than the 787.

    Now that statement you are going to have to prove I think.

    Are you really saying that the Stratocruiser had more electrically powered systems than the 787?

    in reply to: 787 news thread #565662
    Arthur Pewtey
    Participant

    As far as I know Air France has 13xB747-400 ,27xB777-200 and 34xB777-300. I have no idea why Air France bought so many Boeing 777s. Maybe they bought the aircraft that suited their requirements?

    I would suggest what must be more worrying for Boeing is the number of Airbus aircraft in service with US airlines, with even American looking at the A320.
    The 737 upgrade is going to end up being little more than a new engine and seems to me to be an opportunity lost to bring the 737 into the 21st century.

    The 787 has pretty much a captive market in Japan. The Japanese don’t seem to like Airbus much.

    in reply to: 787 news thread #565925
    Arthur Pewtey
    Participant

    NjayM

    I had no desire either to indulge in a personal slanging but, at the risk of sounding immature, you started it.:) All I did was respond to the thread – it wasn’t even directed particularly at you! I don’t know where you got the idea I was a pilot either.

    Anyway, back to the thread. The composite thing is a big deal for operators and I suspect it may become a big deal for structural repair workshops. When a aircraft is damaged down-route where there is inadequate repair or even inspection facilities then airlines will start to grumble. It doesn’t matter what Boeing have put in place, the proof of the pudding as they say……

    At least Boeing managed to design a new fin for the 787; first for many years.:)

    in reply to: 787 news thread #566091
    Arthur Pewtey
    Participant

    Sorry I even spoke, Arthur

    Please see my post #36
    http://forum.keypublishing.com/showpost.php?p=1794068&postcount=36

    Engines Trent 1000 – training, maintenance and probably in many customers’s cases in the first instance are being very ably managed by Rolls Royce, until the GE engine reaches certification stage. This isn’t a show stopper in problems IMO.

    The process for constructing the 787 fuselage and wings is a complete all new method and no other civil aircraft of this capacity and range at present has this high a percentage of composite in it. e.g. They aren’t rivets they are fasteners holding sections together.See post #36

    That is why ramps, loading platforms, and ground service are being managed a ‘tad’ differently and so will repairs to any external fabric damage be different at customer locations or back at Boeing.

    Apart from that as a pilot since you know everything, I shall say no more apart from saying Boeing have pioneered another phase (since the word era is causing so much displeasure) of unique civil aviation and the rest will be followers.

    Having been employed by Cray Research a unique world leader (certainly in my day and to an extent still today) and the Boeing 787 has had 800,000 hrs design time on a Cray Supercomputer (see my post #34) – IMO the 787 will be a global leader for some years.:D

    Go Seattle;)

    You seem to have problems with those who don’t agree with you. If you are not keen on posting items on which some may hold a different view, you should perhaps not post at all. That would certainly get my vote. 😉

    How come you answer my post with sarcasm and yet agree with Flightmech who said the same as I did? :confused:

    The 787 is not a new era in civil aviation. 99% of passengers don’t care what they are flying in as long as it gets them there along with their luggage.

    Whether the 787 becomes a great aircraft, well, we’ll see… in about 25 years time.
    Don’t get me wrong, I’m pleased the 787 has finally made it into service. The much vaunted and ridiculed at 9 month flight test programme turned into 2 years as many predicted but they got there in the end. Safely and without too much drama.

    By the way, most of the recent innovations in air travel have come from Airbus – not Boeing. When Boeing have tried something new the product is over 3 years late.
    Now the Sonic Cruiser, that was truly different, shame they didn’t have the nerve to go through with it.

    in reply to: 787 news thread #566123
    Arthur Pewtey
    Participant

    I don’t think the use of composite materials on the 787 marks the start of a new era in civil aviation. Many aircraft have had composite components for many years.
    What is new is the use of bleedless engines and many of the systems being electrically operated. It is new but hardly a new era in civil aviation I would have said.

    in reply to: British Airways Advert #566588
    Arthur Pewtey
    Participant

    “Chav” airlines eh?

    I’m afraid such phrases only reinforce the snobbery that seems to pervade the public perception of BA.

    I wonder what airline this is based on. 🙂

    Great British Air

Viewing 15 posts - 721 through 735 (of 1,467 total)