#16
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__________________
Like a Boss. [img][/img] Stinky pinky gulp and guzzle big rig snooze and stop. "History does not long entrust the care of freedom to the weak or the timid" - Gen Eisenhower.
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#17
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will the airplane take off? .... corrected
Err, no.
Not true. Thrust from the engines acting against *air* moves the plane forward. The wheels have bloody -nothing to do with the plane movement other than to reduce the friction at the plane/tarmac interface. Thrust generated will move the plane forward in relation to the ground. If the conveyer belt is *long enough* to exceed the planes take off roll, then it will take off from the belt. If not, then it will simply roll off of the belt. Picture this: if the belt WERE 10000' long (and huge enough to support a plane) then even if the belt were traveling the same direction as the plane AND twice as fast, so the wheels on the plane are spinning *backwards to the plane's roll, the plane would still achieve lift and take off.. and the wheels would still have bloody-nothing to do with it. Let's go a little further: let's make it a *float* plane. Again, the floats do nothing except support the weight of the plane and alter the friction interface to the water. The plane needs to achieve sufficient ground movement to attain air speed to produce aerodynamic lift. As long as the engines can provide enough thrust to move the plane against the existing friction, it doesn't matter if the tide is going in or out or if it's upstream or down. Sent from my iPhone using Tapatalk
__________________
I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
Last edited by MrSurly; 08-22-2017 at 09:42 PM. |
#18
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the plane has to be moving forward just to stay in the same place on the conveyer belt. if it were not moving forward then it would be moving backward with the belt. if you were sitting on the wing you would feel the wind.
__________________
“We are all capable of believing things which we know to be untrue, and then, when we are finally proved wrong, impudently twisting the facts so as to show that we were right. Intellectually, it is possible to carry on this process for an indefinite time: the only check on it is that sooner or later a false belief bumps up against solid reality, usually on a battlefield.” —George Orwell, 1946 "The race may not always be to the swift nor the victory to the strong, but that's how you bet." - or - that's how the smart money bets...attributed to Damon Runyon |
#19
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Quote:
__________________
Like a Boss. [img][/img] Stinky pinky gulp and guzzle big rig snooze and stop. "History does not long entrust the care of freedom to the weak or the timid" - Gen Eisenhower.
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#20
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will the airplane take off? .... corrected
I should have quoted... I was replying to Scabby's post but it takes me so long to type, I posted out of order.
But, yes, the wheels don't have anything to do with it except to reduce the friction or drag resisting movement. Now, if the BRAKES were set, now the whole equation does change a bit. Sent from my iPhone using Tapatalk
__________________
I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#21
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I stand corrected.
but.......................it did sound good enough to cause the 'Pilot' to question.
__________________
Tom "Age is a case of mind over matter. If you don't mind, it don't matter."...Satchel Paige "Mother Nature may dictate I grow older but there ain't nothin' nor nobody can make me grow up." ..Me |
#22
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Quote:
You don't make sense, here, Fred. I'm assuming that per your illustration, the conveyor belt is *spinning* but the whole conveyor apparatus is stationary. If this is what's being posited, then the plane (it is implied) would be stationary.... but it's wheels would be spinning on the moving belt. In that case, no wind over the wings. And then you throttle up the engines and they push the plane forward. Push it along the belt and then OFF the belt; engine thrust gives no damns about yer fancy-shmancy belt. Sent from my iPhone using Tapatalk
__________________
I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#23
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ah, I see the misunderstanding. I was assuming the conveyer belt had it's own motor running the belt opposite of the plane's direction. You and some others think the motion of the belt is due to the plane's wheels rolling it backwards. I think.
__________________
“We are all capable of believing things which we know to be untrue, and then, when we are finally proved wrong, impudently twisting the facts so as to show that we were right. Intellectually, it is possible to carry on this process for an indefinite time: the only check on it is that sooner or later a false belief bumps up against solid reality, usually on a battlefield.” —George Orwell, 1946 "The race may not always be to the swift nor the victory to the strong, but that's how you bet." - or - that's how the smart money bets...attributed to Damon Runyon |
#24
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Believe what they are saying the belt does have its own power turning in the opposite direction of the wheel spin. What they are saying is that the thrust of the engines will propel the plane forward, regardless of the spinning belt and wheels, allowing the plain to achieve the required lift for takeoff.
__________________
Tom "Age is a case of mind over matter. If you don't mind, it don't matter."...Satchel Paige "Mother Nature may dictate I grow older but there ain't nothin' nor nobody can make me grow up." ..Me |
#25
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Ed Zachery.
Now if we can get the whole conveyor moving fast enough we can make it fly too. Or at least Bob Hoover could have. Sent from my iPhone using Tapatalk
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gaZinTa OF THE YEAR 2007 gaZinTa OF THE YEAR 2015 |
#26
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Quote:
__________________
“We are all capable of believing things which we know to be untrue, and then, when we are finally proved wrong, impudently twisting the facts so as to show that we were right. Intellectually, it is possible to carry on this process for an indefinite time: the only check on it is that sooner or later a false belief bumps up against solid reality, usually on a battlefield.” —George Orwell, 1946 "The race may not always be to the swift nor the victory to the strong, but that's how you bet." - or - that's how the smart money bets...attributed to Damon Runyon |
#27
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Quote:
No. Sent from my iPhone using Tapatalk
__________________
gaZinTa OF THE YEAR 2007 gaZinTa OF THE YEAR 2015 |
#28
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why not?
__________________
“We are all capable of believing things which we know to be untrue, and then, when we are finally proved wrong, impudently twisting the facts so as to show that we were right. Intellectually, it is possible to carry on this process for an indefinite time: the only check on it is that sooner or later a false belief bumps up against solid reality, usually on a battlefield.” —George Orwell, 1946 "The race may not always be to the swift nor the victory to the strong, but that's how you bet." - or - that's how the smart money bets...attributed to Damon Runyon |
#29
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Physics
Sent from my iPhone using Tapatalk
__________________
gaZinTa OF THE YEAR 2007 gaZinTa OF THE YEAR 2015 |
#30
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__________________
Like a Boss. [img][/img] Stinky pinky gulp and guzzle big rig snooze and stop. "History does not long entrust the care of freedom to the weak or the timid" - Gen Eisenhower.
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