Page 1 of 4 1234 LastLast
Results 1 to 10 of 40

Thread: Since some one brought it up

  1. #1
    AZKC
    Q: Will an airplane on a treadmill be able to takeoff? ( No Answer, 81 Comments )
    [More Theories (http://answers.google.com/answers/threadview?id=428718)

  2. #2
    HCS
    If you don't rope it down it will fly.

  3. #3
    Jetaholic
    Q: Will an airplane on a treadmill be able to takeoff? ( No Answer, 81 Comments )
    [More Theories (http://answers.google.com/answers/threadview?id=428718)
    OK...let's end this once and for all.
    The question stated that the treadmill has a speed tracking system on it that tracks the plane's speed, and adjusts its speed to match the plane's speed but in the opposite direction. Basically what this system does is adjusts the treadmill speed so that all forward movement of the plane is cancelled out. No forward movement of the plane = no airflow over the wings = no lift generated = plane will not take off.
    Now if the plane's liftoff speed was say...100 knots...and the treadmill was fixed at that speed...the plane will take off...but would have to generate twice the thrust it would have to generate if it were on a non moving runway, and the wheels would be spinning twice as fast.

  4. #4
    uvindex
    OK...let's end this once and for all.That's a good one.
    Basically what this system does is adjusts the treadmill speed so that all forward movement of the plane is cancelled out.You must be using a wheel-driven aircraft. (Where did you get such a thing anyway??)

  5. #5
    Jetaholic
    That's a good one.
    You must be using a wheel-driven aircraft. (Where did you get such a thing anyway??)
    Wheel driven? Where did you get that from?
    It doesn't track the speed of the wheels...it tracks the speed of the aircraft itself. The speed of the wheels is irrelevant.

  6. #6
    snake321
    Didn't state whether it was facing into the wind or not.......

  7. #7
    LUVNLIFE
    OK...let's end this once and for all.
    The question stated that the treadmill has a speed tracking system on it that tracks the plane's speed, and adjusts its speed to match the plane's speed but in the opposite direction. Basically what this system does is adjusts the treadmill speed so that all forward movement of the plane is cancelled out. No forward movement of the plane = no airflow over the wings = no lift generated = plane will not take off.
    Now if the plane's liftoff speed was say...100 knots...and the treadmill was fixed at that speed...the plane will take off...but would have to generate twice the thrust it would have to generate if it were on a non moving runway, and the wheels would be spinning twice as fast.
    YES, YES, YES

  8. #8
    uvindex
    Wheel driven? Where did you get that from?Since you think the treadmill cancels out the speed of the aircraft, one can only assume that you think the airplane is driven by its wheels.

  9. #9
    Miss Perfect
    OMG...are we really doing this again?!?!?!?!?

  10. #10
    Jetaholic
    Since you think the treadmill cancels out the speed of the aircraft, one can only assume that you think the airplane is driven by its wheels.
    By "speed of the aircraft" I am referring to the forward movement of the aircraft's fuselage...not the speed of the wheels.

Page 1 of 4 1234 LastLast

Similar Threads

  1. Brought to you by JBB & Brown !
    By Liberator TJ1984 in forum Sandbar
    Replies: 6
    Last Post: 08-17-2007, 02:51 PM
  2. Replies: 24
    Last Post: 02-25-2007, 12:39 PM
  3. Who brought the cat!
    By nobaddays in forum Sandbar
    Replies: 6
    Last Post: 01-13-2007, 12:59 PM
  4. Look what Santa brought!
    By Ultrafied in forum Sandbar
    Replies: 12
    Last Post: 12-26-2005, 08:06 PM
  5. Brought out of storage....
    By V-DRIVE VIDEO in forum Jet Boats
    Replies: 164
    Last Post: 08-31-2005, 07:42 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •