Man, and here I thought this thread was bad... check out the 2400+ posts in this one.
http://forum.physorg.com/Plane-on-co...-off_2417.html
BJJB
http://forum.physorg.com/Plane-on-co...-off_2417.html
BJJB
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jebus...
Yes, the plane can take off, and no it can not.
ANY PLANE CAN TAKEOFF WITHOUT LIFT!
granted it needs alot of thrust (and an angle) , but its possible
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Tha plane will have lift though....Originally posted by Glickman"Unless someone like you cares a whole awful lot, nothing is going to get better. Its not" - Dr SuessComment
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Originally posted by bjjb99
this is ao... if the thread dies, it will be resurected in 6 months and debated all over... in a never ending cycle...
or at least it would have on the older ao."Great stories! See everyone, just buy a Sydarm and become a paintball superstar!! "
AGD
"i just sent out the full force of the canadian army (4 guys). expect high canadian casualties"
BlackweenieComment
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Originally posted by Lohman446
the point im trying to make is that lift is not required, its very helpful, but not requiredComment
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Somebody please tell me what the SECOND sentence of the question says?
I'll help you...
"THE PLANE MOVES IN ONE DIRECTION...."
This means...in case you need comprehension help.....the plane can, and is moving on the belt.
With the plane moving independantly of the wheels, due to the thrust of the engines against the air------NOT THE BELT OR GROUND OR WHEEL ASSEMBLY----acceleration will happen. Acceleration to flight speed will happen.
Belt speeds, wheel speeds, shopping cart speeds, TSA Security speeds, the moons of Jupiter speeds mean NOTHING to the question.
Here's one last analogy for those who don't know airplanes:
Same conveyor belt, same runway: YOU are standing NEXT to it (not on it). Grasping firmly to a skateboard, you place the wheels onto the belt.
Are you with me so far? You are standing next to the belt, holding the wheels of a skateboard to it. Got it? Follow on then:
Now, still holding the wheels to the belt------walk forward. YES, the wheels roll. YES, the belt now speeds up. But are YOU being rooted to the spot because of this? NOOOOOOOO! You are OBVIOUSLY not, and CANNOT!!!
Why? Because YOUR forward motion is independant of the belt or skateboard. NOTHING is holding YOU back.
Heck, you can even RUN next to the belt, and lift the skateboard into the air!
WHY? Because YOUR forward thrust----JUST LIKE THE ENGINES----has NO bearing on what the wheels or belt are doing.
The damn plane flies....and you get arrested for trespassing.
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Necropost!
Mythbusters is doing this now
SwallowBleach: It's good for you.
www.seckspb.com: for all your third party needs
Where have all the scooters gone? -BobTheCowComment
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They tried it out with an ultralight and a 2000' tarp and the plane was able to take off. I don't know if it took more distance to do so [or if there were other differences], as they didn't note it, but it took off.SwallowBleach: It's good for you.
www.seckspb.com: for all your third party needs
Where have all the scooters gone? -BobTheCowComment
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Keep us posted for when this will be aired please. I wanna see this one!Originally posted by teufelhundenNecropost!
Mythbusters is doing this nowComment
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I didnt read the whole thread, but here is what i am thinking.
i voted yes by the way
edit, i answered my own questionLast edited by devildog; 01-31-2008, 10:13 AM.Zaszczycają waszą ojczyznę
just got back from iraq!!!
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Originally posted by VTLO910
It aired last night at 9. I'm sure it'll be rerun 400 times in the next week... tvguide.comSwallowBleach: It's good for you.
www.seckspb.com: for all your third party needs
Where have all the scooters gone? -BobTheCowComment
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Whithout reading the multitude of pages I'm going to have say yes it would take off. It's a trick question.
Sure the conveyor belt is moving the opposite direction... but that point is moot. The engines on the wings provide the thrust which drives the plane and produces the relative airspeed difference between the airfoil/air to produce lift forces. The relative speed difference between the plane and air is what is important... this is why aircraft carriers fly INTO the wind and INCREASE headwind by speeding up when planes are taking off. This is also why a "stationary" wing can produce lift in a wind tunnel.
Any opposite directional force like a conveyor belt cannot be realized on the body of the plane because the wheels of plane rotate freely upon takeoff. All that would happen is the wheels would spin twice as fast as the plane took off.
Now if there as a wicked tailwind on the runway...Comment
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New question...
What if the plane is a JSF X-35B (F-35 LightningII STOVL)?Comment
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I love this thread... so much oportunity for shenanigans.Originally posted by neppo1345Whats scary is that one day...you may be flying something that he him or myself have designed
Except I got the question right...
One day, something you designed will get pwned when something I designed shoots it down.
I win
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Sure the conveyor belt is moving the opposite direction... but that point is moot. The engines on the wings provide the thrust which drives the plane and produces the relative airspeed difference between the airfoil/air to produce lift forces. The relative speed difference between the plane and air is what is important... this is why aircraft carriers fly INTO the wind and INCREASE headwind by speeding up when planes are taking off. This is also why a "stationary" wing can produce lift in a wind tunnel.
they kinda did it on national tv last night dude....
What the ones who argued against it missed are the definitions of "speed"
In order for something to be "going" a certain speed implies forward motion.Comment
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