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    Boeing has its arse in a sling

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    Boeing has its arse in a sling Empty Boeing has its arse in a sling

    Post by Admin on Mon Mar 18, 2019 11:13 am

    ddavid
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    Post by ddavid on Tue Mar 19, 2019 5:49 pm

    I'm not impressed. Always thought Boeing engineers were the best - but the accountants obviously won with the Max.

    Cheers - Dai.
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    Post by ddavid on Fri Apr 12, 2019 7:59 pm

    Some more info on Boeing's decision to resolve the pitch-up problem with the newer, bigger engines by introducing MCAS (software) rather than redesigning the horizontal stabilizer and elevator set up. This video explans:



    Be interesting to see how Boeing gets out of this...

    Interesting, also, that Trump decides to increase duty/taxes on aircraft imported from Europe. Is this related?

    Cheers - Dai. Cool
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    Post by Admin on Sat Apr 13, 2019 8:53 am

    this is a red herring, and completely wrong, he needs to go back to school or at least learn the basics of flying
    in both accidents the pilots were pulling back on the control columns because the mcas system was pushing the nose down, it was certainly not a deep stall situation, quite the opposite, deep stalls are virtually impossible in twin a/c because there is not the weight of three engines at the back , the 727 or trident could suffer a deep stall because the T tail if it did get in the shadow of the wings would have a very nose high attitude and this combined with the weight of 3 engines at the rear could create a deep stall . however if a deep stall occurred in a twin engine under the wing layout all the pilot needs to do is reduce power and the nose will drop naturally and will not require aerodynamic effort from the elevators becuse the weight of the engines is in front of the center of gravity.
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    Post by ddavid on Wed May 01, 2019 11:43 am

    Here's another view on the MCAS problem:

    https://spectrum.ieee.org/aerospace/aviation/how-the-boeing-737-max-disaster-looks-to-a-software-developer

    My experience in process control automation software, admittedly in the 70's, supports a lot of what he says re software 'hacks'. Also, it's interesting how he brings the C172 into the discussion as well as that O-ring problem on Challenger. A good read ...

    Cheers - Dai. Cool
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    Post by britfrog on Thu May 02, 2019 9:03 am

    this article is interesting a pity the russians , who stopped giving any 737 a certificate of airworthiness dont elaborate on why

    http://avherald.com/h?article=4c534c4a/0052&opt=0
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    Boeing has its arse in a sling Empty Re: Boeing has its arse in a sling

    Post by ddavid on Sun May 05, 2019 7:59 pm

    All this reminds me rather vaguely of Michael Crichton's novel "Airframe", where the pilot 'battled' against the AP, or similar.

    You know, it's definitely going to end badly for Boeing...

    Cheers - Dai. Cool




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