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Thread: Is it a dream or a nightmare?

  1. #21
    Member 9V-Orion Images's Avatar
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    Default Re: Is it a dream or a nightmare?

    Quote Originally Posted by 9V-Orion Images View Post
    Actually the A380 only have two independent hydraulic channels, yellow and green with each channel pressurised by four engine driven pumps (only two is required) at 5000 psi though it is supplemented by several Electrical-Hydrostatic Actuators (EHAs) and Electrical Backup Hydraulic Actuators (EBHAs) as well.

    You also have four main engine driven Alternating Current (AC) generators providing 115 Volts Alternating Current (VAC) at 150 kilovolt-ampere (kVA) each to four independent AC buses (AC 1 to AC 4), not to mention the Auxiliary Power Unit (APU) with two AC generators providing 115 VAC at 120 KVA each and ultimately, the Ram Air Turbine (RAT) is there to ensure the EHAs and EBHAs do not go offline by providing electrical power to a separate AC Essential (AC ESS) and a AC Emergency (AC EMER) bus.

    IF ALL OF THE ABOVE FAILS with the possibility that you may strike the first prize lottery 14 days in a row, the A380 will hopefully degrade gracefully from normal flight control law to alternate or even direct flight control law giving the pilot enough time to land with differential engine thrust before plunging to the ground.
    Just to further add on, if information on hand is accurate. The flight that cks2k2 was on didn't just have a hydraulic failure but a multiple system failure affecting or involving the Automatic Flight Guidance System (AFGS) and Flight Management System (FMS) as well?

    Theoretically in such an event, the flight control law should have degraded from normal to alternate knocking off the Load Alleviation Function (LAF) thus a flight through turbulent airspace might be exceptionally bumpy.
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  2. #22

    Default Re: Is it a dream or a nightmare?

    Quote Originally Posted by Halfmoon View Post
    BRo, are you a electrial eng?
    i suspect 9v Orion is a Siaec LAME . Or was .

    nine victors are sg registered civil aircraft
    宁愿遇见丢失幼崽的母熊,也不愿碰上做蠢事的愚人

  3. #23
    Senior Member Halfmoon's Avatar
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    Default Re: Is it a dream or a nightmare?

    Quote Originally Posted by Shizuma View Post
    i suspect 9v Orion is a Siaec LAME . Or was .

    nine victors are sg registered civil aircraft
    Sorry... I do not get you....
    Art is perception; Perception is art.

  4. #24
    Member Fudgecakes's Avatar
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    Quote Originally Posted by Halfmoon

    Sorry... I do not get you....
    He's an aircraft engineer

    9 victor>>> a type of aircraft
    There are no bad photographers, only photos that could've been done better
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  5. #25

    Default Re: Is it a dream or a nightmare?

    Quote Originally Posted by Fudgecakes View Post
    He's an aircraft engineer

    9 victor>>> a type of aircraft
    it is like car plate.car plate begin with S is sg car. aircraft begin with 9V is sg aircraft. observe the next time you take sg airline see can see on the tail or not
    宁愿遇见丢失幼崽的母熊,也不愿碰上做蠢事的愚人

  6. #26
    Member Fudgecakes's Avatar
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    Quote Originally Posted by Shizuma

    it is like car plate.car plate begin with S is sg car. aircraft begin with 9V is sg aircraft. observe the next time you take sg airline see can see on the tail or not
    Whoops. I stand corrected xD
    There are no bad photographers, only photos that could've been done better
    My Flickr

  7. #27
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    Orion is a constellation so that makes him an astronaut? :-)

  8. #28
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    Default Re: Is it a dream or a nightmare?

    Apparently due to Yuasa battery malfunction.

    We did not say it.

    The Japanese themselves said it was a .......

    (Photo credit: photo snapshot off a NHK World News broadcast dated 22 January 2013)


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