If a helicopter was sitting on a spinning disc would it be able to take off??

Of course...not.

 

No, the g-forces would probably kill the pilot.

 

Not this again.

 

Just think of those toys they use to (maybe still do) make where you pulled the string and it flew off the base. If anything it would increase the rate of take off

 

It's the speed of the main rotor relative to the stationary air that causes lift...so, yes it would lift off, but it takes the force of the tail rotor offsetting the G forces imparted by the rotation of the main rotor to allow for steady flight... the spinning disc would double the G forces so the coptor would spin wildly out of control. It might crash or the counter rotor might provide enough force to return stability once the liftoff has ended the spinning disc's inluence.

You should try it and see.

 

lol, insnt that what i just said?

 

lol, isnt that what i just said?

 

lol, isnt that what i just said?

 

I think Space Ghost may have worded it wrong.

What if the platform/helicopter were spinning in the OPPOSITE direction of the blades. If you looked at it from the top, you see the helicopter spinning but the blades remaining stationary. It's like on of those toys where you pull the string, but you hold on to the propellers and just watch the copter spin.

 

it would still tak off, the air under the blades isnt moving, which gives it its lift

 

This is a really complicated question. I think it is above most of the posters here (including myself).

 

No way. The pilot would vomit half his weight before he could initiate take off.

 

The net motion of the main rotor would be zero...no lift.

X + (-X) = 0

 

The doctor is the boy's mother.

 

All you need to do is believe. If you believe it'll take off, then it will.

 

in the direction of the rotors then yes

opposite direction of the main rotor? I still think it would , while if you looked at it from above because its spinning in the opposite direction of the main rotor it would appear as if it weren't moving thus no lift, however do to the placement of the tail rotor and the direction of the spinning platform the tail roter will be spinning, spinning just enough to throw the heli off of the platform, as soon as the heli is off the platform and not confined to the platforms spinning limits then the main rotor will then be spinning as normal if looked at from above thus causing lift and take-off.

however all this would have to be done by a robotic pilot because the g-forces of any spinning platform that equals the speed of a spinning main rotor will cause death

 

Why are you even thinking about this?
Well, as a aerospace undergraduate, I'd say helicopters arn't meant to be spinning on a disc.

 

It's a spinoff of this thread.

http://bbs.clutchfans.net/showthread.php?t=136449&page=1&pp=20

 

I think you could manage it with a Chinook, which is good for transporting troops or stealing vast sums of oil or cash. I wouldn't try with a Blackhawk, which is vastly overpriced for what you get out of it.