Reply With Quoteno, you can't make any assumptions about me....Originally Posted by vnx205
helicopters do fly , using exactly the same theory of flight that fixed wing aeroplanes use......helicopters are rotary wing aeroplanes.
ForumSage
SupporterThe same way that light bulbs actually don't emit light but suck in dark, which is why when they eventually get black, they stop working and have to be replaced, as they are full of dark.
Swaggie
no, you can't make any assumptions about me....
helicopters do fly , using exactly the same theory of flight that fixed wing aeroplanes use......helicopters are rotary wing aeroplanes.
If the wheels are turning forwards then the conveyor must already be running backwards at the same speed but in the opposite direction, according to the question.
The conveyor belt doesn't need to be that long either, just a couple of metres.
The tracks on the conveyor are running backwards, but the unit itself is stationary.
Since the conveyor unit is stationary, while the tracks are turning opposite to the wheels, then the plane attached to the wheels is also stationary. So no uplift and no takeoff, I think.
Wizard
Helicopters fly through brute force and ignorance .
Wizard
SupporterI can assure you that brute force will rapidly lead to both the pilots and the helicopters early demise!Helicopters fly through brute force and ignorance .
As for ignorance, if this thread is anything to go by, ignorance is not confined to helicopters!
ForumSage
SupporterAn ex-SAS soldier once told me that there were only two types of helicopters, "those that have crashed, and those that are going to crash".
Swaggie
Subscriber
so if a helo was on a giant turntable, bla bla, would it take off?
Current Cars:
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Wizard
The statement , "helicoptors fly throuhgh force and ingnorance" is old Aviation saying used by Pilots from way back to describe the principles of flight for a helicopter . I did not just make it up .I can assure you that brute force will rapidly lead to both the pilots and the helicopters early demise!
As for ignorance, if this thread is anything to go by, ignorance is not confined to helicopters!. Cheers .
Wizard
SupporterYou missed out the bit: "quoted by fixed wing pilots!The statement , "helicoptors fly throuhgh force and ingnorance" is old Aviation saying used by Pilots from way back to describe the principles of flight for a helicopter . I did not just make it up .
YarnMaster
SubscriberAssuming wheel bearing friction is negligible then there are only 5 forces are acting on the plane.
1 Thrust from the engine - huge in any realistic aircraft engine.
2 gravity - constant but always directed down
3 lift - variable but always directed up
4 drag - variable, but always directed in the opposite direction to movement and therefore to thrust.
5 wheel rolling friction - very small compared to thrust from an engine but always directed in the opposite direction to wheel rotation
If the force of thrust is greater than the sum of the opposing forces of drag and wheel rolling friction then there is nothing on gods earth which will stop that plane moving forward, whether it is on a conveyor or not.
Since it moves forward the wings will generate a lift force. When the force of lift exceeds the force of gravity the plane will fly.
None of the above forces have anything to do with the conveyor. The conveyor can spin those wheels in any direction it likes, at pretty much any speed it likes within the bounds of reason. Provided thrust exceeds the sum of drag and friction losses associated with the wheel's movement then the plane moves and flies.
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