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رونمايي از نسخه جديد ايروسنتر

با تلاش چندين روزه و شبانه روزي همكاران فني در ايروسنتر ، نسخه اسكريپت انجمن ساز قدرتمند VBulletin سايت ايروسنتر به روزساني و بهينه سازي گرديد و به آخرين ورژن ارائه شده آپگريد شد، در اين نسخه جديد مشكلات قبلي برطرف گرديده و قابليت هاي جديدي نيز به سايت افزوده شده و خواهد شد اين پوسته نسخه جديد سايت پوسته ای در 4 رنگ جداگانه می باشد که برای صفحه های Retina و موبایل بهینه سازی شده است.

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dqw
  1. Hamed26_avia ?????? ??
    Hamed26_avia
    هوانورد نیمه فعال-سروان
    September 2007
    tehran
    421
    تعداد تشکر : 28
    Thanked 225 Times in 89 Posts

    ??? ??? Air France plane: 'No hope' of survivors

    [align=left][size=x-large]Air France plane: 'No hope' of survivors[/size]

    source: http://www.guardian.co.uk

    by: Angelique Chrisafis and Mark Tran

    [size=medium]The Air France plane that disappeared between Brazil and France with 228 people on board today has almost certainly crashed, airline and government officials said

    If no survivors are found it will be the worst loss of life involving an Air France plane in the firm's 75-year history

    The officials believe the Airbus A330-200 aircraft crashed after running into lightning and thunderstorms over the Atlantic Ocean

    Gordon Brown said he feared Britons were among the passengers. "I do fear there may be some British citizens on board," the prime minister told Sky News. "We are doing all the checking that is necessary."

    The Air France chief executive, Pierre-Henri Gourgeon, told a news conference: "We are probably facing an air catastrophe."

    He said the aircraft went through a thunderstorm with strong turbulence at about 3am BST

    An automated message was received at 3.14am indicating a failure of the electrical system, Air France said in a statement

    "The whole company shares the anxiety of the families," Gourgeon said. "We are doing everything possible to get information through, little by little, as it comes through."

    François Brousse, an Air France spokesman, said several of the plane's mechanisms had malfunctioned, preventing it from making contact with air traffic controllers

    "It is probably a combination of circumstances that could have led to the crash," he said

    Brazilian air force planes are searching the Atlantic for flight AF447, which left Rio de Janeiro at 7pm local time (11pm BST) yesterday. It had been expected in Paris at 11.15am

    Brazilian air force officials told the Associated Press a search was under way near the island of Fernando de Noronha, about 1,500 miles north-east of Rio, but an Air France source was quoted as saying that there was "no hope" for those on board[/size]


    Map of the route and area where Air France flight AF447 vanished from radar. Source: Guardian

    [size=medium]Jean-Louis Borloo, the second most senior figure in the French cabinet, said: "By now it would be beyond its kerosene [aviation fuel] reserves … unfortunately we must now envisage the most tragic scenario."

    Borloo told the France Info radio station the plane had disappeared from both military and civilian radar screens

    The French president, Nicolas Sarkozy, expressed "extreme worry" and sent the junior minister for transport, Dominique Bussereau, and Borloo to Charles de Gaulle airport to monitor the situation

    The Air France flight was full – today is a French bank holiday and Brazil is an increasingly popular tourist destination among the French

    At midday, the flight was still up on the arrivals board with the word "delayed" beside it, even after official statements said that it had probably been lost. By 1pm, it had been removed from the board

    Relatives and friends of passengers who had arrived at Charles de Gaulle's terminal two to meet the plane were ushered into a closed area away from journalists, where they were being counselled by airport staff

    A former pilot told France Info he believed the plane was the first passenger-carrying Airbus A330 to crash. The model is known as having a good safety record

    The plane was carrying 216 passengers and 12 crew. Of the passengers, 126 were men and 82 were women. Seven children and a baby were on board

    According to the French media, Paris airport authorities were told by their Brazilian counterparts that the aircraft had vanished from radar screens

    Douglas Ferreira Machado told Brazil's Globo TV that he believed the plane must have left Brazilian waters and could have been near the coast of Africa by the time contact was lost, based on the speed it was travelling

    "It's going to take a long time to carry out this search," he said. "It could be a long, sad story. The black box will be at the bottom of the sea."

    French military aircraft took off from Senegal in western Africa to take part in the search

    France Info quoted an airport authority source as saying it was possible, but extremely unlikely, that the radar drop-out had been caused by a transmitter failure

    Chris Yates, an aviation expert, told the BBC: "There is not radar coverage across the Atlantic, because it is too far from radar stations

    "But the fact [the plane] has not appeared on radar when it neared land gives me cause for concern."
    He said that "if we are talking about an aircraft coming down over the ocean … then survivability is quite limited"

    Air France said the pilot had flown 11,000 hours, 1,700 of them on an Airbus 330, making him a highly experienced pilot. Of the two co-pilots, one had 3,000 hours of flight time and the other 6,600 hours. Flight AF447, which had flown 18,870 hours, entered service in April 2005. Its last engineering overhaul was in April

    The A330-200 model has not had any fatal accidents involving passengers. In June 1994, an A330 owned by Airbus on a test flight simulating an engine failure on take-off crashed shortly after leaving Toulouse, killing all seven people on board

    In October last year, a Qantas A330 flying from Singapore to Perth reportedly experienced a sudden change in altitude

    The crew issued a mayday call before diverting the aircraft. About 36 passengers and crew members were injured, more than a dozen seriously

    The last major incident involving an Air France plane was in July 2000 when one of its Concordes crashed just after taking off from Charles de Gaulle Airport, bound for New York

    All 109 people on board were killed, along with at least four on the ground[/size][/align]
    #1 ارسال شده در تاريخ June 2nd, 2009 در ساعت 23:15:28

  2. Hamed26_avia ?????? ??
    Hamed26_avia
    هوانورد نیمه فعال-سروان
    September 2007
    tehran
    421
    تعداد تشکر : 28
    Thanked 225 Times in 89 Posts

    ??? ??? RE: Air France plane: 'No hope' of survivors

    [align=left]there is also a good link for this event and special detalis of it, and I think this is better than above:

    [size=x-large]http://news.bbc.co.uk/2/hi/americas/8076848.stm[/size][/align]
    #2 ارسال شده در تاريخ June 4th, 2009 در ساعت 22:47:03

  3. Hamed26_avia ?????? ??
    Hamed26_avia
    هوانورد نیمه فعال-سروان
    September 2007
    tehran
    421
    تعداد تشکر : 28
    Thanked 225 Times in 89 Posts

    ??? ??? RE: Air France plane: 'No hope' of survivors

    [align=left][size=x-large]Investigators confirm airspeed problem on Air France A330 [/size]

    source: http://www.flightglobal.com

    By : Kieran Daly

    [size=medium]French investigators have this morning confirmed that automatic messages transmitted by the Air France Airbus A330-200 lost four days ago show that the aircraft was experiencing conflicting airspeed information from its on-board sensors

    The brief statement from investigation agency BEA follows the issuance by Airbus of a telex to operators reminding them of immediate actions to be taken by crews in the event of unreliable airspeed indications

    It says: "Many more or less accurate or attempted explanations of the accident are currently circulating. The BEA reminds one that in such circumstances it is best to avoid any hasty interpretation or speculation based on fragmentary and unvalidated information"[/size]


    © Airbus

    [size=medium]At this stage of the investigation, it says, the only elements established are these

    First :The presence near the planned route of the aircraft over the Atlantic of signifcant convective cells characteristic of the equatorial regions

    Second: From the automatic messages transmitted by the aircraft, the inconsistency of the different measured speeds
    The Airbus telex states: "The route of the aircraft was crossing a tropical multicell convective area at the time of the accident. Failure/maintenance messages have been transmitted automatically from the aircraft to the airline maintenance centre


    "The above mentioned messages indicate that there was an inconsistency between the different measured airspeeds. Therefore, and without prejudging the final outcome of the investigation, the data available leads Airbus to remind operators what are the applicable operational recommendations in case of unreliable airspeed indication"

    It then provides operations manuals references for the entire Airbus-fielded fleet of aircraft

    A 2001 airworthiness directive previously mandated operators to ensure that aircraft flight manuals were updated with the procedures in the event of unreliable airspeed indications following a series of such events on the type It indicated that severe icing of the pitot tubes or physical loss of the radome, which additionally requires an increase in power to counter the drag, were potential causes

    Sources in Brazil familiar with the investigative work say that icing is a key focus of investigation[/size][/align]
    #3 ارسال شده در تاريخ June 6th, 2009 در ساعت 14:12:10

  4. Hamed26_avia ?????? ??
    Hamed26_avia
    هوانورد نیمه فعال-سروان
    September 2007
    tehran
    421
    تعداد تشکر : 28
    Thanked 225 Times in 89 Posts

    ??? ??? RE: Air France plane: 'No hope' of survivors

    [align=left][size=x-large]Air France crash inquiry stalls over missing data [/size]

    source: http://www.flightglobal.com

    By : David Learmount

    [size=medium]Data transmitted from the Air France Airbus A330 that crashed into the South Atlantic has given French accident investigators some insight into a range of aircraft system faults, but no information about the nature of its trajectory during its descent into the sea or its structural integrity. The aircraft crashed en route from Rio de Janeiro to Paris on 1 June with the loss of 216 passengers and 12 crew

    Some debris has been retrieved from the surface, but efforts to find AF447 - and the flight data recorder that will be the key to establishing the cause of the crash - are hindered by the great sea depth in the crash region, of up to 6,000m (19,700ft)

    BEA investigations agency director Paul-Louis Arslanian has cautioned the international media about the value of the error signals transmitted automatically by the aircraft (see box), stating that they were "not designed for investigations" and only gave an indication as to the status of particular systems without providing information about why the systems status had changed[/size]

    A330 ACARS data provides symptoms not cause

    Between 02:10 and 02:14 GMT AF447's aircraft communications addressing and reporting system (ACARS) reported five failure reports and 19 warnings; including some repeats.

    02:10 - 12 messages, indicating a difference in airspeed sensor inputs, the autopilot and auto-thrust disengaged, TCAS indicated fault mode and flight control law changed from normal to alternate.
    02:11 - fault message for an air data inertial reference unit and the integrated standby instrument system.
    02:12 - warning message "NAV ADR DISAGREE" indicated that there was a disagreement between the independent air data systems.
    02:13 - the flight management guidance and envelope computer indicated faulty.
    02:14 - warning about the ADR, a cabin vertical speed message was triggered




    [size=medium]Arslanian says that while a connection between the signals and the loss of flight AF447 "would appear probable", there was no direct evidence of "causality between the messages and the accident"

    The region in which the aircraft disappeared, the inter-tropical convergence zone, is characterised by cumulonimbus cloud and thunderstorms caused by vigorous convective activity generated by surface heating. Meteo France deputy director Alain Ratier, however, says the weather systems on 1 June were "normal" for the tropics: "We cannot conclude that this situation was exceptional"

    A systems anomaly, the details of which were datalinked to Air France, would have given the crew a very high workload shortly before the aircraft's loss. A disparity developed between the information provided by the aircraft's three pitot-static systems. This would have provided the crew with different, possibly fluctuating, airspeed and altitude indications and, at the same time, it caused the autopilot and autothrottle to trip out, leaving the pilots to fly the aircraft manually

    The problem is believed to have been caused by the pitot tubes becoming corrupted by ice and/or water, because the probes installed on this airframe were of a model that had a record of such problems in bad weather. Air France is currently replacing them with an improved model that has more effective water drainage

    Meanwhile, Airbus has reissued a bulletin originally promulgated in 2001 about the procedure for dealing with this situation, which consists of maintaining a combination of aircraft attitude and power that is known to keep the airspeed within an acceptable range

    The fact that the aircraft was lost within minutes of this problem arising makes the circumstances strikingly similar to previous accidents in which a system failure or anomaly distracted the pilots, following which the aircraft entered a rapid descent that the crew failed to arrest

    These accidents, which all took place over sea at night, include the 1996 Birgenair Boeing 757 pitot-static corruption incident in which false airspeed indications led to a stall warning and loss of control, the 2004 Flash Airlines 737-300 loss over the Red Sea and the 2007 Adam Air 737-400 loss of control over the Java Sea when the crew fixated on troubleshooting a failed system[/size][/align]
    #4 ارسال شده در تاريخ June 13th, 2009 در ساعت 01:29:07

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