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Airplane experience weightlessness Watch

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    Hello, why cannot the passengers in an airplane experience weightlessness like they do in outer space. I understand that they do in space because they are experiencing constant free fall as the spaceshuttle are doing circular motions. However, if the airplane can maintain constant speed, why cannot the passengers float?
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    The plane isn't orbiting the Earth. It isn't moving nearly fast enough.
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    (Original post by charlielao)
    Hello, why cannot the passengers in an airplane experience weightlessness like they do in outer space. I understand that they do in space because they are experiencing constant free fall as the spaceshuttle are doing circular motions. However, if the airplane can maintain constant speed, why cannot the passengers float?
    They can, but it needs to be flying like this:

    https://en.m.wikipedia.org/wiki/Redu...avity_aircraft

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    (Original post by alow)
    The plane isn't orbiting the Earth. It isn't moving nearly fast enough.
    So if the plane is fast enough, we can float within earth?
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    (Original post by jneill)
    They can, but it needs to be flying like this:

    https://en.m.wikipedia.org/wiki/Redu...avity_aircraft

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    Ohoh i see. Thank you for the reply, but why doesn't spaceships have to fly in that fashion in the space?
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    (Original post by charlielao)
    So if the plane is fast enough, we can float within earth?
    Yes. But the air resistance would tear a plane to shreds.
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    (Original post by charlielao)
    Ohoh i see. Thank you for the reply, but why doesn't spaceships have to fly in that fashion in the space?
    Because they are in orbit around the earth at >27,000 km/h

    When a spacecraft is in orbit it is "falling" around the earth, and the occupants are falling with it so they feel weightless relative to the spacecraft.

    However when a spacecraft is in deep space rather than orbiting - e.g. travelling to the moon or beyond - the effect of gravity is very low (effectively negligible) so it and the occupants seem to be weightless.
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    (Original post by alow)
    Yes. But the air resistance would tear a plane to shreds.
    Oh oh, I see, thank you so much.
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    (Original post by jneill)
    Because they are in orbit around the earth at >27,000 km/h

    When a spacecraft is in orbit it is "falling" around the earth, and the occupants are falling with it so they feel weightless relative to the spacecraft.

    However when a spacecraft is in deep space rather than orbiting - e.g. travelling to the moon or beyond - the effect of gravity is very low (effectively negligible) so it and the occupants seem to be weightless.
    ohoh, i understand it now. Thank you so much.
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    (Original post by charlielao)
    ohoh, i understand it now. Thank you so much.
    No problem.

    You might also enjoy this site (by the engineering dept at Cambridge)
    http://i-want-to-study-engineering.org/

    Also (by the Physics Dept.)
    https://isaacphysics.org/

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