Airplane physics question | Page 111 | FerrariChat

Airplane physics question

Discussion in 'Other Off Topic Forum' started by alanhenson, Dec 3, 2005.

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?

Does the plane fly?

  1. Yes

  2. No

  3. Question doesn't allow answer.

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  1. INTMD8

    INTMD8 F1 Veteran
    Owner Silver Subscribed

    Jun 10, 2007
    6,725
    Lake Villa IL
    ^ Wrong on all counts.

    All has been explained so you will find answers in reading rather than responding to the question in a way it was not asked.
     
  2. Leksi

    Leksi Rookie

    Feb 26, 2023
    19
    Russia, ORN
    Full Name:
    Leksi
    A bit time more, and the aircraft will fly together with the treadmill, after a symbiosis.
     
  3. The Red Baron

    The Red Baron Formula 3

    Jan 3, 2005
    1,126
    Full Name:
    Warren
    One more go to try and explain this;

    If you go from the start, the plane is sitting on the conveyor belt, engine at idle and no wind.

    Say your standing on the ground off the conveyor belt and hold on to the wing tip.

    As you apply thrust and the plane starts to move forward, say at 1 knot, to which the conveyor belt counters that and rotates the other way, according to the question.

    "The conveyor belt is designed to exactly match the speed of the wheels at any given time, moving in the opposite direction of rotation."

    So you can still stand in the same position with your hand on the wing tip as the plane isn't moving relative to the ground.

    Increasing the thrust basically increases the counter speed of the conveyor belt, so you can still keep your hand on the wing tip. Question also states no wind so the airflow over the wing is still zero, ie no lift.

    No matter how much thrust you have the thrust is countered by the conveyor belt doing the opposite.

    So the plane will not get airborne.

    However for those who understand this, if you had large enough wheels and with your hand on the wing tip, somehow raise the wheels off the ground, then rotate them the opposite way at a great speed (ie, going backwards) the vector produced by the Magnus Effect may !!, temporally lift the plane in the air. If the wheels touch the ground doing this your in deep kimchi.
     
  4. Ak Jim

    Ak Jim F1 Veteran
    Owner Rossa Subscribed

    Dec 23, 2007
    9,462
    North Pole AK
    Can you provide a link to a technical writing or article that explains this in more detail?
     
  5. The Red Baron

    The Red Baron Formula 3

    Jan 3, 2005
    1,126
    Full Name:
    Warren
    No, just using logical thinking. Trying to make it easier for some to understand.
     
  6. NYFAIM

    NYFAIM Formula 3
    Silver Subscribed

    Feb 22, 2015
    1,422
    Las Vegas
    Full Name:
    Howard R.
    I'm sure this has already been posted...

     
  7. The Red Baron

    The Red Baron Formula 3

    Jan 3, 2005
    1,126
    Full Name:
    Warren
    If the plane is accelerating at the same speed and opposite to the car then the plane would stay by the same cone beside the conveyor.
    This is not happening. He is going faster.
     

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