Will it take off?

Author
Discussion

BarnatosGhost

31,608 posts

255 months

Tuesday 27th October 2009
quotequote all
I think you'll face some issues as the chopper starts to unweight, as it won't have the same friction to the turntable, which will start to slip underneath the skids. The chopper's rotation will start to slow, and assuming it stays on the pad, you'll face some interesting torque effects between the blades and the chopper as they change speed relative to each other.

The tailrotor may 'grip' the wind and make this worse (or better, can't work it out)

Although as with most things on a helicopter, changing anything will make it worse! Stupid things, I'm still reasonably sure they are, in their entirety, impossible.

tribbles

3,990 posts

224 months

Tuesday 27th October 2009
quotequote all
aclivity said:
As another thought experiment, would it be possible to LAND a plane on a conveyor belt?
Yes.

Ganglandboss

8,324 posts

205 months

Tuesday 27th October 2009
quotequote all
tribbles said:
aclivity said:
As another thought experiment, would it be possible to LAND a plane on a conveyor belt?
Yes.
The checkout girl would probably be a bit pissed off though...

HereBeMonsters

14,180 posts

184 months

Tuesday 27th October 2009
quotequote all
I never understood what the debate was with this conveyor belt/aeroplane scenerio. Lift is only generated by airspeed, airspeed by thrust from the engines moving the plane forward in the air. Putting it on a conveyor belt will have no effect on how fast air moves over its wings.
Just have a look at an airfield with light aircraft in during heavy wind. They're all trying to take off despite not moving relative to the ground because the air moving over their wings is generating lift.
Or was someone claiming that aircraft have driven wheels?

aclivity

4,072 posts

190 months

Tuesday 27th October 2009
quotequote all
HereBeMonsters said:
I never understood what the debate was with this conveyor belt/aeroplane scenerio. Lift is only generated by airspeed, airspeed by thrust from the engines moving the plane forward in the air. Putting it on a conveyor belt will have no effect on how fast air moves over its wings.
Just have a look at an airfield with light aircraft in during heavy wind. They're all trying to take off despite not moving relative to the ground because the air moving over their wings is generating lift.
Or was someone claiming that aircraft have driven wheels?

cottonfoo

6,016 posts

212 months

Tuesday 27th October 2009
quotequote all
HereBeMonsters said:
Or was someone claiming that aircraft have driven wheels?
That's the concept many people don't seem to be able to grasp, alarmingly even the pilot of the light aircraft in the Mythbusters test.