What Myth would you want to see busted?
- Thread starter Linkex
- Start date
So really tell me if both spinning entities cancel each other out where is the energy coming from to make these blades move.
Jetfuel?
Ah but no - glacus is (correctly) introducing knowledge of how a turboshaft engine works and saying the blades will go at x rpm relative to the ground regardless of the speed of the helicoptor rotating beneath them because the only thing that governs the speed of the blades is air resistance and the power of the engine (unless turboshaft engines have rev limiters?
). So it can still take off. My point is if you want to introduce real knowledge of physics/engineering to these thought experiments/myths/paradoxs, where do you stop? It can be a fun debate. I can introduce more real life and say the engine couldn't possibly operate like that and the helicoptor would fall apart anyway, so we're back to it cant take off.Yes but the plane wont be static as it is powered by engines that produce thrust, so yes it will take off. But as my post above, you can also argue it wont by choosing to introduce friction and rolling resistance and have the conveyor belt fast enough that those effects are big enough to stop the plane moving relative to the ground/air. Can go either way.
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The skids of your chopper are attched to the turntable by mavity until you can achieve any sort of lift .
Ground+rotation=turntable surface plus choppers body+rotation=blade
both rotations cancel so what the centre entity does is insignificant (it will rotate at the expeiments RPM either clockwise or anti clockwise dependant on first rotations direction) , therefore
Ground = Blade
No they don't, they are not linked.
One can rotate independent of the other. So they don't cancel out.
It's not like a car where tyres are directly linked to the road surface. Therefore the forces can cancel each other out.
It is just like a plane on a conveyor belt, where the forces are not directly linked. So they do not cancel each other out.
One can rotate independent of the other. So they don't cancel out.
It's not like a car where tyres are directly linked to the road surface. Therefore the forces can cancel each other out.
It is just like a plane on a conveyor belt, where the forces are not directly linked. So they do not cancel each other out.
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You seem to be trying to convince me if you put a chopper on a turntable and spin it the chopper magically sits still
No, how earth did you get to that conclusion.
Just that the turntable and body of helicopter is on system, engine and blades are a separate system.
The only link between them is some bearings. Just like with the airplane. Where the wheel bearings will be taking twice the speed. The same with helicopter. Between the bearing Between engine and prop shaft.
Now your imlying the engine of a helicopter rotates relative to it's body.
Basically the theory assumes there are 2 points of rotation 1 between ground ---> tuntable/chopper body/engine, one between between turntable/chopper body/engine ---> blades.
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Well it does, because in that situation you have the blades limited to x-rpm by the rev-limited-engine, and spin the heli at the same speed on the turntable, so you do indeed have blades stationary wrt the ground (and the engine at almost no-load).
No, the complete opposite.
Rpm limited makes sod all difference.
THE FORCES ARE NOT DIRECTLY LINKED.
Just like properly on a plane and a moving conveyor belt.
No direct link, so no cancelation of forces.
haha...controversial!!!
I'm not sure what your failing to understand here, but the fact you don't even seem to acknowledge the theory and practical application of a 'rolling road' makes me get the sense you just trolling
Helicopter's rotors sit on a swash plate that don't link up to any of the rotations of the body, but I think we can all safely say that the body will absolutely not withstand the forces of being spun as fast as the rotor, so not taking off due to destruction 
Although, people are forgetting the tail rotor which should be able to rotate a helicopter on it's belly and eventually counter acting this fictional spinning ground once the main rotor has enough thrust lightening it.
Although, people are forgetting the tail rotor which should be able to rotate a helicopter on it's belly and eventually counter acting this fictional spinning ground once the main rotor has enough thrust lightening it.
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