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Thread Statistics | Show CCP posts - 2 post(s) |
MotherMoon
Huang Yinglong
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Posted - 2008.09.16 16:51:00 -
[271]
Edited by: MotherMoon on 16/09/2008 16:50:48 damn it forums
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Julius Romanus
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Posted - 2008.09.16 16:53:00 -
[272]
The answer is no. Lift is created by air pressure differences caused as air moves over the wing. As you can see in the picture airspeed is 0. Dumb question. ------------------ For Medicinal Use Only. |
Pwett
Minmatar QUANT Corp. QUANT Hegemony
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Posted - 2008.09.16 17:02:00 -
[273]
*giggles*
It's like the dollar-tied-to-fishing-line trick. _______________ Pwett CEO, Founder, & Executor <Q> QUANT Hegemony
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Sharupak
Minmatar Brutor tribe
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Posted - 2008.09.16 17:26:00 -
[274]
Originally by: Julius Romanus The answer is no. Lift is created by air pressure differences caused as air moves over the wing. As you can see in the picture airspeed is 0. Dumb question.
Oh for the love of!!!!!
Just when you start to get the whole thread settled down and straightened out, it starts all over again.
How many stragglers are there. _______________________________________________ RuntimeError: ChainEvent is blocking by design, but you're block trapped. You have'll have to find some alternative means to do Your Thing, dude. |
MotherMoon
Huang Yinglong
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Posted - 2008.09.16 17:27:00 -
[275]
Edited by: MotherMoon on 16/09/2008 17:33:29 Edited by: MotherMoon on 16/09/2008 17:29:58 Edited by: MotherMoon on 16/09/2008 17:27:35
Originally by: Julius Romanus The answer is no. Lift is created by air pressure differences caused as air moves over the wing. As you can see in the picture airspeed is 0. Dumb question.
DAMN IT READ THE THREAD.
the wheels don't do shit the planes move forward to matter what the hell the ground is doing!
edit:I love how 3 people all replyed in like 5 mins :P
Quote: Haha i get it. Really seems simple now... the wheels are free moving, cause it's a plane, not a car
ok new example, get a soda bottle and one of those devices that lets you pump up the water pressure so it'll generate push when released like a rocket.
Now put it on one of those super long moving walkways at a mall or airport. Even tack on wheel if it fits your fancy.
Now release it and see if it gives a shit what speed the ground it moving, it doesn't! the only thing that happens is the wheels move backwards faster than if not on the moving walkway. HOwever because the wheels have nothing to do with the speed the plane moves the wheels will in fact be moving backwards as fast as the plane plus the walkway back.
To some people this means the bottle would stay in place, NO the botle would move forward just as fast, the wheels on the other hand would move faster.
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Spenz
Gallente Aliastra
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Posted - 2008.09.16 19:20:00 -
[276]
Even before mythbusters I knew the plane would take off. A plane is NOT a car. It does not get its thrust from its wheels. Many say that the friction would keep the plane grounded, but the thrust from the airplane makes the friction caused by the wheels look like nothing.
Once the friction is overcome (and it will be overcome by the thrust), the plane can and will take off. All that matters is the limits of the equipment (bearings, wheels, etc.), which doesn't have anything to do with the myth, since a giant conveyor belt is far more radical an idea than equipment that doesn't fail under stress.
If I had an Alt I would probably post with it... |
Slade Trillgon
Siorai Iontach
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Posted - 2008.09.16 19:30:00 -
[277]
I vote for this thread to be stickied.
For an excellent example of "I do not know how to read a thread before answering the OP".
Do I have a 2nd
Slade
Originally by: Crumplecorn NerfBat is now known as the WaveMachine.
DesuSigs
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Captator
Universal Securities
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Posted - 2008.09.16 22:17:00 -
[278]
Originally by: Slade Trillgon I vote for this thread to be stickied.
For an excellent example of "I do not know how to read a thread before answering the OP".
Do I have a 2nd
Slade
Oh go on then seconded!
Told this to my family, most of them got it instantly, my dad still doesn't get it after a week of me explaining it.
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Louis deGuerre
Gallente Federation Zone Operations Command
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Posted - 2008.09.16 22:46:00 -
[279]
That plane will fly when pigs fly.
-------------------------------------------------- If you know the enemy and know yourself, you need not fear the result of a hundred battles - Sun Tzu |
digitalwanderer
Gallente Archon Industries Solidus Alliance
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Posted - 2008.09.17 01:32:00 -
[280]
Edited by: digitalwanderer on 17/09/2008 01:32:57
Quote:
Good lord.
In the instance of a prop plane, the engine will pull the plane forward creating lift across the wings. The operation of the propellor will create the propulsion to move the plane through the air, which in turn creates lift over the wings. The wheels do not drive the plane.
The wheels will move faster than usual, however they will only act as a support for the plane which is being propelled by its propellor...
Grow a brain, jeez.
Actually,the propellers on their own,even when running at full speed,don't generate enough airflow on their own over the wings to allow the plane to take off....They're there to primarily increase the plane's ground speed so that the incoming air from the environment where the plane is located AND the airflow from the propellers generates enough Lift from the wings.
The OP's post clearly states a 0 Airpseed value in the picture(top left corner)
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Dmian
Gallente Starline Engineering Corporation
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Posted - 2008.09.17 01:39:00 -
[281]
This (again)
----
Eve Alpha - The font of Eve - Get it here |
digitalwanderer
Gallente Archon Industries Solidus Alliance
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Posted - 2008.09.17 01:50:00 -
[282]
Originally by: Dmian This (again)
Have it your way,i still say no.
The only thing that can take off at 0 Airpseed and using only it's propeller to generate enough airflow is a helicopter,not a plane.
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Sharupak
Minmatar Brutor tribe
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Posted - 2008.09.17 02:06:00 -
[283]
Originally by: digitalwanderer
Originally by: Dmian This (again)
Have it your way,i still say no.
The only thing that can take off at 0 Airpseed and using only it's propeller to generate enough airflow is a helicopter,not a plane.
Read the OP again, the plane is allowed to move foward on the Conveyor and physics says it will move foward! _______________________________________________ RuntimeError: ChainEvent is blocking by design, but you're block trapped. You have'll have to find some alternative means to do Your Thing, dude. |
Reven Cordelle
Caldari School of Applied Knowledge
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Posted - 2008.09.17 09:26:00 -
[284]
P.S, Plane still takes off.
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mamolian
Madhatters Inc.
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Posted - 2008.09.17 09:47:00 -
[285]
****ing knew this thread would annoy the shit out of me.. Whyyy did I click..
-----------
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Akita T
Caldari Navy Volunteer Task Force
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Posted - 2008.09.17 10:22:00 -
[286]
10 pages of this... wtf...
If people still come in here saying otherwise, they are obviously not reading the (now heavily edited) OP.
_
SHOPS || Mission rewards revamp || better nanofix
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Kyrall
A Few Killers
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Posted - 2008.09.17 10:41:00 -
[287]
I wonder if anyone here is REALLY, REALLY bored, and feels like going through this topic, counting up all the posts that actually add anything to the discussion? Like clearer explanations, better pictures, new misconceptions or even interesting side-issues.
I bet there would be about 10 posts, 20 tops. _____ Originally by: Pwett You sir, underestimate the things I have and will pee on.
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sartorii
Genco
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Posted - 2008.09.17 10:49:00 -
[288]
the number of morons still discussing this astounds me..
YES it will take off, pretty much everyone with an actual aerospace background knew that years ago.. only the fools who failed physics doubted.
"disconnect and self destruct one mullet at at time" [sic] |
Zorinna
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Posted - 2008.09.17 10:51:00 -
[289]
Edited by: Zorinna on 17/09/2008 10:51:12
Originally by: Louis deGuerre That plane will fly when pigs fly.
with enough thrust ANYTHING will fly.
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Abrazzar
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Posted - 2008.09.17 11:14:00 -
[290]
Put a catapult on a conveyor belt. The belt will neutralize any forward or backward movement of the catapult. If you launch a pig with the catapult, will the pig take off?
Follows about the same logic of separated momentum as the plane on a conveyor belt.
Fly piggy, fly!
-------- Ideas for: Mining
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MotherMoon
Huang Yinglong
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Posted - 2008.09.17 13:19:00 -
[291]
Originally by: digitalwanderer
Actually,the propellers on their own,even when running at full speed,don't generate enough airflow on their own over the wings to allow the plane to take off.
SO YOUR SAYING that the propeller of the plane isn't enough to get the plane off the ground.
think about that long and hard.
no it doesn't create lift it creates thrust!
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MotherMoon
Huang Yinglong
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Posted - 2008.09.17 13:21:00 -
[292]
Originally by: Abrazzar Put a catapult on a conveyor belt. The belt will neutralize any forward or backward movement of the catapult. If you launch a pig with the catapult, will the pig take off?
best example so far.
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Lakut
EmpiresMod
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Posted - 2008.09.17 15:41:00 -
[293]
The only way this myth would be true would be if you had some kind of plane that relied on the wheels providing the thrust to reach its initial takeoff velocity with a propeller only to keep it in the air.
The other thing that could prevent the plane from taking off is that you have crappy wheels that break down (or cause too much friction slowing the plane) because the bearings can't deal with twice the liftoff velocity.
Apart from this hypothetical vehicle and crappy wheels, the myth is indeed a myth.
Now stop trolling and let this thread die. ----------
You get a wonderful view from the point of no return. |
Pwett
Minmatar QUANT Corp. QUANT Hegemony
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Posted - 2008.09.17 15:50:00 -
[294]
If the treadmill is spinning at the speed of light, and the pilot turns on the headlights, how much slower does time pass for the passengers in the plane relative to people on the ground? _______________ Pwett CEO, Founder, & Executor <Q> QUANT Hegemony
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Crumplecorn
Gallente Eve Cluster Explorations
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Posted - 2008.09.17 17:47:00 -
[295]
Originally by: Pwett If the treadmill is spinning at the speed of light, and the pilot turns on the headlights, how much slower does time pass for the passengers in the plane relative to people on the ground?
No slower, because the plane has perfect frictionless wheels and the conveyor doesn't affect it. -
DesuSigs |
digitalwanderer
Gallente Archon Industries Solidus Alliance
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Posted - 2008.09.17 22:32:00 -
[296]
Originally by: MotherMoon
Originally by: digitalwanderer
Actually,the propellers on their own,even when running at full speed,don't generate enough airflow on their own over the wings to allow the plane to take off.
SO YOUR SAYING that the propeller of the plane isn't enough to get the plane off the ground.
think about that long and hard.
no it doesn't create lift it creates thrust!
It's enough to make the plane move forward,but it's the wings that provide the lift once the plane hits takeoff speed by pressure differencial,in wich the air above the wing travels faster than the air passing under the wing.....The only exception to this is a fighter jet,where the thrust from it's high performance engines with afterburners engaged,actually exceeds the weight of the entire aircraft,and there it goes straight up with no need at all for wings.
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MotherMoon
Huang Yinglong
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Posted - 2008.09.17 22:56:00 -
[297]
Originally by: digitalwanderer
Originally by: MotherMoon
Originally by: digitalwanderer
Actually,the propellers on their own,even when running at full speed,don't generate enough airflow on their own over the wings to allow the plane to take off.
SO YOUR SAYING that the propeller of the plane isn't enough to get the plane off the ground.
think about that long and hard.
no it doesn't create lift it creates thrust!
It's enough to make the plane move forward,but it's the wings that provide the lift once the plane hits takeoff speed by pressure differencial,in wich the air above the wing travels faster than the air passing under the wing.....The only exception to this is a fighter jet,where the thrust from it's high performance engines with afterburners engaged,actually exceeds the weight of the entire aircraft,and there it goes straight up with no need at all for wings.
did you just try to say that jets don't need wings for lift?
oh my.
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Aeswynne
Caldari Rognvald Corporation
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Posted - 2008.09.17 23:00:00 -
[298]
Originally by: Le Skunk NO
My justification? Well when im down the gym pushing weights and all the birds checking me out and shit. I sometimes have a go on the running machine (i push one of the wimps on it out of the way first, the birds all luagh and giggle behind their hands).
And i dont take off do i. SKUNK
Aah but you will if you drink plenty of beer, eat eggs beans and cabbage at the same time. Note, Do Not Smoke Whilst attempmting this feat.
Make the universe a better friendlier place, NUKE JITA.... Someone PLEASE? What are you doing in my pod? GTFO! |
MotherMoon
Huang Yinglong
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Posted - 2008.09.17 23:03:00 -
[299]
Originally by: Aeswynne
Originally by: Le Skunk NO
My justification? Well when im down the gym pushing weights and all the birds checking me out and shit. I sometimes have a go on the running machine (i push one of the wimps on it out of the way first, the birds all luagh and giggle behind their hands).
And i dont take off do i. SKUNK
Aah but you will if you drink plenty of beer, eat eggs beans and cabbage at the same time. Note, Do Not Smoke Whilst attempmting this feat.
while going into detail would be silly, yeah you'd go flying into the air no matter the speed you were running at :P
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digitalwanderer
Gallente Archon Industries Solidus Alliance
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Posted - 2008.09.18 01:36:00 -
[300]
Originally by: MotherMoon
did you just try to say that jets don't need wings for lift?
oh my.
Fighter jets.....There is a difference.
They're the only planes where the thrust output of the engines,when running at maximum power,is actually higher than the total weight of the plane itself,hence they can climb completely vertical should the pilot choose to do so.....Wings in that situation are completely useless for their actual lift properties.
Current world record in a straight vertical climb is a custom prepared F-15 called the silver streak,wich climbed to a maximum operating ceiling(65 000 Feet)in roughly 52 sec....Yup,over 1000 feet a second.
As for the original post,there far too few details left out originally to make a decision one way or another,but the link with the mythbusters video is pretty much a best case scenario since they use a plane that needs very little speed to take off no matter what,and we saw it moving faster than the conveyor belt,not the same speed.
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