This Should Leave Your Brain In A Knot- Part 2!
- Thread starter Kevan
- Start date
Stanimal
Full Access Member
i did however stay at a holiday inn express last night 
Kevan
Full Access Member
Take your truck.
But a set of Airbus A310 wings on either side.
Set the flaps for lift-off.
Put it on that big ol' NASCAR treadmill.
Set the speed of the treadmill to match the speed of the truck.
Does your truck take off?
But a set of Airbus A310 wings on either side.
Set the flaps for lift-off.
Put it on that big ol' NASCAR treadmill.
Set the speed of the treadmill to match the speed of the truck.
Does your truck take off?
Kevan
Full Access Member
That one was too easy.....heh heh.Roz-SRT said:
Black1
Full Access Member
If a tree falls, in the woods, and no-one is around............ Ah, f**k it.... Nevermind.
(This isn't in "Offensive", is it? .... OOoops. )
(This isn't in "Offensive", is it?
.... OOoops. )
Last edited:
Kevan
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Leave it to Jake to get a simple brain teaser put into Offensive.
LOL
LOL
Black1
Full Access Member
Kevan said:Leave it to Jake to get a simple brain teaser put into Offensive.
LOL
:rock: (If I had my way, this WHOLE forum would be in "Offensive"....
)Kevan
Full Access Member
You *could* edit your post.....and save the thread.....
Black1
Full Access Member
Kevan said:
Done.....
Just 'cause I love ya.
Kevan
Full Access Member
Thanks, but you can save the love for Mikey.Black1 said:Done.....
Just 'cause I love ya.
Black1
Full Access Member
Kevan said:Thanks, but you can save the love for Mikey.
You know what I mean, ya .........
DAMN-IT.... It's back in "NON" Offensive..... :dontknow: KRAZYSRT10
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Man...I'm glad I left this to you guys. I would have gotten all nerdy on ya about lift, thrust, drag and then broken it down on how planes achieve Vr, Vro, Vlof, and then started talking about V50(3) and V50(4) speeds....
awwww....c'mon....look what you guys made me do!!!!
awwww....c'mon....look what you guys made me do!!!!
KRAZYSRT10 said:Man...I'm glad I left this to you guys. I would have gotten all nerdy on ya about lift, thrust, drag and then broken it down on how planes achieve Vr, Vro, Vlof, and then started talking about V50(3) and V50(4) speeds....
awwww....c'mon....look what you guys made me do!!!!
Edjukate us moar. . .
Black1
Full Access Member
KRAZYSRT10 said:Man...I'm glad I left this to you guys. I would have gotten all nerdy on ya about lift, thrust, drag and then broken it down on how planes achieve Vr, Vro, Vlof, and then started talking about V50(3) and V50(4) speeds....
awwww....c'mon....look what you guys made me do!!!!
DORK!!!!
I for one liked the question, and the answer is.......No. The plane will remain stationary reguardless of thrust. The conveyor belt is tracking wheel speed and will constantly adjust. Without forward movement to generate lift, the plane cannot fly. I liked reading all the answers though.
Geeman
Geeman
Black1
Full Access Member
Geeman said:
Glad you liked it.... But, you're still WRONG.
:nurse:
Let me see if I understand this idea.
The plan will never be sitting still. As the plane achieves forward motion, the runway applies opposit motion that is speed matched. The plan will still be moving forward with a windspeed based on its own motion, but a ground speed that is now effectively double.
Is that the idea?
The plan will never be sitting still. As the plane achieves forward motion, the runway applies opposit motion that is speed matched. The plan will still be moving forward with a windspeed based on its own motion, but a ground speed that is now effectively double.
Is that the idea?
Thrust is just used to overcome drag. Thrust on an airplane overcomes drag and moves the plane forward. As the plane moves forward more and more air passes over the wings. Enough air passes over the wings and lift is generated. That is why you land and take off into the wind (extra lift). Now in the original question the plane is generating thrust, however it is not overcoming drag (moving runway). That would mean that no lift is being generated (air over wings). If no there is no lift, then there is no flight.
Now if the airplane's thrust overcomes the moving runway then lift can be generated. I know a lot of you say it will fly and maybe I'm wrong. But think about it like this. Lets say the takeoff speed needed to rotate (leave the ground with enough lift to fly) is 120 knots. You either need 120 knots of wind or a combo of wind and forward speed to equal 120 knots. Now lets look inside the cockpit at the GPS ground speed indicator. The plane tries to move forward but the moving runway moves opposite direction. So the ground speed would read 0. Just like on a treadmill. Your "speed" on a tread mill might go up, but you actual speed is 0. That's why you are still in the same room when you are done working out. So if the plane is not actually moving forward then the only wind available to generate lift would be from the true wind.
Like I said I could be wrong. Anything is possible. But someone would need to explain to me how lift is being generated in a stationary airplane without hurricane force winds.
Smoke
Now if the airplane's thrust overcomes the moving runway then lift can be generated. I know a lot of you say it will fly and maybe I'm wrong. But think about it like this. Lets say the takeoff speed needed to rotate (leave the ground with enough lift to fly) is 120 knots. You either need 120 knots of wind or a combo of wind and forward speed to equal 120 knots. Now lets look inside the cockpit at the GPS ground speed indicator. The plane tries to move forward but the moving runway moves opposite direction. So the ground speed would read 0. Just like on a treadmill. Your "speed" on a tread mill might go up, but you actual speed is 0. That's why you are still in the same room when you are done working out. So if the plane is not actually moving forward then the only wind available to generate lift would be from the true wind.
Like I said I could be wrong. Anything is possible. But someone would need to explain to me how lift is being generated in a stationary airplane without hurricane force winds.
Smoke
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