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Viewing 15 posts - 511 through 525 (of 871 total)
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  • in reply to: Digital Canon SLR to fit old lenses #448889
    Cking
    Participant

    Thanks for that PMN, Now to talk to the wife!!

    Rgds Cking

    in reply to: De-icer sucked into aircraft's air supply. #489404
    Cking
    Participant

    In training each de-icer are all told and shown where to and not to spray the fluid! This must be a case of pure lapse in concentration!

    If Biggles doesn’t switch off the APU air supply the poor guy doing the spraying can concentrate all he likes and the PAX are still going to get a lung full!
    Don’t be too hard on the guys doing the de icing they are working in low temperatures, poor conditions and have got everyone on their backs to get the job done quick.
    It amazes me why people are always trying to avoid de iceing. When ever I get asked “Eng do you think we need to de ice?” I always say, “yes, de ice”, I always think that a tank full of de icer is always cheaper than a smoking hole at the end of the runway. Call me old fasioned:)

    Rgds Cking

    in reply to: De-icer sucked into aircraft's air supply. #489843
    Cking
    Participant

    Did they leave the APU running?

    You can leave the APU running but you just have to shut off the air supply valve from it. It doesn’t look like they did it there though!

    Rgds Cking

    in reply to: De-icer sucked into aircraft's air supply. #489891
    Cking
    Participant

    It is standard proceedure to shut off the air conditioning when de icing, If you don’t….

    Rgds Cking

    in reply to: Airbus Noise #491418
    Cking
    Participant

    Damm, you’r quick PMN!!!!
    I was about to put………

    It’s the hydraulic power transfer unit operating. The Yellow and green hydraulic system has a hydraulic pump/motor unit inter connecting them. This enables one to drive the other if the difference in hydraulic between them is more than 500psi.
    The left engine powers the green system and the right engine powers the yellow system. The yellow system also has an electrically driven pump. An electrically driven pump powers the Blue system
    On start up this unit is tested automatically after the second engine is started for a few seconds. On engine shut down the unit will detect a low pressure in one side, get the other one to pressurize it. That will cause the other side to de-pressurize, so the first side will have a greater pressure and cause the PTU reverse and so on!
    This is the “Barking” noise you heard.

    Rgds Cking

    P.S. Guess who just got back from an A320 course?!!!

    in reply to: MAN 11 Dec 2008 #482165
    Cking
    Participant

    nice pics!!!! whats with the PIA airbus am i missing something at Man these days 🙂

    JASON

    Saw one at LHR two weeks ago. I too thought that they had gone to the “great apron in the sky”.
    I like the autumnal light on your pictures, very nice.

    Rgds Cking

    in reply to: To Paint, Or Not To Paint #493185
    Cking
    Participant

    So, up to 1000kg – a ton each aircraft. Just think how much fuel that could save if every airliner in the world were unpainted!

    Bri 😉

    ..and how boring the photo’s on this forum would be.

    Rgds Cking

    in reply to: Aircraft Control Surface Balances #1201038
    Cking
    Participant

    I was under the impression that at least some versions of the 74 had tail surfaces fitted with amounts of depleted unanium – or some other such dense material… but I may be wrong!

    The 747 and the Tristar had depleated uranium used in certain parts of the flying controls. As for other modern transport aircraft, I don’t know.
    Depleated uranium is SUPOSEDLY safe un less you start drilling or cutting it. There are stories of scrap depeated uranium mass ballences being cut up and used as rivet “Bucking bars” due to them being very heavy for their size:eek:

    Rgds Cking

    in reply to: To Paint, Or Not To Paint #494492
    Cking
    Participant

    You have to do it from new. The Air Canada aircraft were old ones stripped for the purpose and looked absolutely horrible. All AA aircraft were delivered new in bare metal and look OK. The AA A300’s were delivered with painted grey because Airbus would not give them a corrosion warranty on a bare metal aircraft. Once the warranty expired AA stripped the aircraft, They won’t look pretty close up! AA has a problem with their 777’s as the fuselage panels are all delivered to Boeing primed. The panel suppliers had to supply un primed ones for their aircraft. If they ever replace a full skin panel they will have to give Boeing plenty of notice to get a bare metal one

    Rgds Cking

    in reply to: I think my wife’s an aircraft enthusiast but wont admit it #494501
    Cking
    Participant

    My wife don’t care, as long as it has a drinks tolley on board.

    Rgds Cking

    in reply to: aircraft de-icing? #494506
    Cking
    Participant

    Apologises for asking what is probably a few stupid questions, but…

    I know its obviously got to be strong enough to get rid of the snow/ice, but won’t that have an issue on the structural integrity of the aircraft itself…:confused:

    1stly..no such thing as a stupid question

    2ndly the fluid has no efect on either metal or composite structure.

    Rgds Cking

    in reply to: ANZ plane down in Mediterranean. #496234
    Cking
    Participant

    The jet had been undergoing servicing at EAS Industries in Perpignan and flying circuits for 90 minutes before it crashed, an emergency services spokesman said

    An hour and a half circuits and bumps would have shook the defects out of her. Any defect due to maintenance would have shown up long before then

    Rgds Cking

    in reply to: ANZ plane down in Mediterranean. #496247
    Cking
    Participant

    Having had a major check, I am guessing there is a good chance the accident may be related.

    or the fact that it was on a training flight with newly Airbus qualified pilots?????? Personaly I have heard of more aircraft losses during flight crew training than post maintenance test flights.
    Sad for the familys no mater why
    Rgds Cking

    in reply to: A330 Qantas flight: starter motor sheared off because no oil #496271
    Cking
    Participant

    Hi all
    The A330 has an air driven starter motor. Hear is a picture of a 737 starter motor.
    http://www.b737.org.uk/powerplant.htm#Misc_Photos
    Its the thing on the end of the large silver pipe.
    ALL Airbus and Boeings, except the 787 are started by air starters. They are all prety much the same shape as this one but the do get a little bigger.
    The 787 from what I gather is going to use the generator as a starter. The BAC 1-11 used to use it’s constant speed drive as a starter (CSDS). That used to change rotational direction after starter cut out making that disinctive whine that we all know and love
    They are all oil lubricated, all held on by a “Vee band” clamp.
    Not filling one with oil would not do it any good but, as this one was FOUR days out of maintenance I don’t think that had anything to do with it. I doubt that one would last that long without oil.

    Rgds Cking

    in reply to: Nasty incident at MAN #498951
    Cking
    Participant

    I have been told he was changing the wheel.
    I was always taught to remove the valve core to deflate the wheel compleatly before removal. When you change a brake you are supposed to defate them to a nominal pressure before removing the wheel. BUT 20-30 PSI will still cause injury. I undo the wheel nut three or four turns and then give the tyre a good thump before removing the nut finally. My thinking is that if the hub tie bolts have fractured and fail at that point the wheel nut will stop the hub flying off. Never had one go on me and never want one either!

    Rgds Cking

Viewing 15 posts - 511 through 525 (of 871 total)