Plane on a treadmill! 9pm, Discovery Channel!!

Discussion in 'CycleChat Cafe' started by Mister Paul, 1 May 2008.

  1. Mister Paul

    Mister Paul Legendary Member

    They're doing it on Mythbusters.

    This should be interesting...
  2. I don't wish to make myself unpopular, but could someone explain, without getting bogged down in too much detail, what the big deal is with the aeroplane and the treadmill? And the ducks, while we're at it. I remember it being on C+ but I never read the thread.
  3. gbb

    gbb Legendary Member

    FFS Nooooooooooo :biggrin:

    I'll try to watch that one :biggrin:
  4. Night Train

    Night Train Maker of Things

    Greater Manchester
    I don't get it either. I also don't have sky to watch it.
  5. red_tom

    red_tom New Member

    East London
    Double noooo.

    It was me that started that horror thread on C+ :biggrin:
  6. yorkshiregoth

    yorkshiregoth Master of all he surveys

    Saw that episode a while back via newsgroups, it's an interesting one.
  7. Night Train

    Night Train Maker of Things

    Greater Manchester
    I'm on the edge of my seat here, what's it about? I don't get the planes and treadmills myth.
  8. Noodley

    Noodley Guest

    and? did it work?
  9. Joe24

    Joe24 More serious cyclist than Bonj

    Wasnt it something to do with Bonj thinking it could?
    sorry if i was wrong

    Edit, opps just read up above right this time. :biggrin:
    I asked a friend today with a btec in avionics and he said no, uless you turned it around the other way and it was fast enough to get the plane moving. But it might be good to get it to stop in a short space. :biggrin:
  10. radger

    radger Über Member


    i don't get discovery channel any more


    RT - there was great debate on C+ about what a plane would do if the runway were a treadmill - would it take off or not? i cannot recall the conclusion - I think there wasn't one
    As for the ducks, I assume it was the how many ducks riddle - variations on There are 2 ducks in front of 2 other ducks. There are 2 ducks behind 2 other ducks. There are 2 ducks beside 2 other ducks. How many ducks are there? I missed this though, so I may be talking through my neck
  11. snorri

    snorri Legendary Member

    Shhhhh.....forget it...don't ask......quit while you're winning;).
  12. radger

    radger Über Member

    should i heavily edit my last post?
  13. jonesy

    jonesy Legendary Member

    The conclusion was that quite a few people need to re-learn their Newtonian mechanics! :sad:
  14. OP
    Mister Paul

    Mister Paul Legendary Member


    A plane is on a treadmill. It tries to take off. The treadmill matches the plane's speed in the opposite direction. Does the plane take off?

    And the outcome-

    Yes it does. (where's the smug smilie?)

    It takes off because a plane's wheels are unpowered. The thrust comes from the prop/jet engine pushing against the air. So the treadmill cannot stop the plane moving forwards. And once it gets to normal take-off speed it takes off.
  15. jonesy

    jonesy Legendary Member

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