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Thread: Proper Engineering

  1. #1
    Full Member GazVXLINE170's Avatar
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    Default Proper Engineering

    Have found three videos, of hands up the first two you don't see much but it does put your confidence up when flying through a rain storm of even if the aircraft is flying with birds.

    http://youtube.com/watch?v=faDWFwDy8-U&feature=related

    http://youtube.com/watch?v=y2OS2pwrZTI&feature=related

    This one is impressive I think, possibley as close you can get to seeing a car engine perform:

    http://www.youtube.com/watch?v=BO5Hd...eature=related

    Enjoy!!!!

    Gazza4
    Insignia VX-Line Nav CDTI 170.

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    Regular Member Ste's Avatar
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    Default

    I liked the 2 engine test ones.

    The engine clearly has a large by-pass, as most of the water comes out as water, and that what goes through the compression and burn stages would come out as high temp steam. Same with the bird and blood in the by-pass, but fully chopped and cooked in the combustion gases. Notice the damage to number 21 blade at the end of the chicken run.

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    Regular Member Brocks's Avatar
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    The birds are normally Frozen and fired into the engine. You'll notice is some of it shards of ice.

    The by pass you talk of Ste isn't there for these reasons. I can't remember the science anymore - its been a while since I worked in aviation- but part of the flow misses the main chamber to increase power, efficiency and reduce noise.

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    Full Member izonoky's Avatar
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    ...what Brocks said, a classic trademark of turbo'fan' jet engines.

    2.2 Direct SRi

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    Regular Member SignumPhil's Avatar
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    The old turbojet engines used to put all of the thrust through the combustion chamber and turbine, whereas modern high bypass engines have a bigger fan, and route a lot of the thrust around the core, giving more of a "turboprop with a chainguard" affect.
    It's more fuel efficient than the old turbojets, and a lot quieter. It's harder to obtain reverse thrust, though and they don't spin up and down as fast.

    Phil

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    Regular Member Whippy's Avatar
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    thanks, you've just reminded me about this video...

    http://youtube.com/watch?v=9KhZwsYtNDE

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    Regular Member mark1319's Avatar
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    I remember seeing the engine on the waverley when I was a young yin, it was noisy as ****, but a great site to see something like that in action.

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    Regular Member Ste's Avatar
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    Default

    Quote Originally Posted by Brocks View Post

    The by pass you talk of Ste isn't there for these reasons. I can't remember the science anymore - its been a while since I worked in aviation- but part of the flow misses the main chamber to increase power, efficiency and reduce noise.

    I am aware of this and how turbines work. Large bypass can improve efficiency, reduce noise too !

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