Pick 5 posters you'd like to have dinner with.

[Brock]

Originally Posted by Donger

Correct. So, now let's add thrust from the propeller into the mix. In the case of the second scenario, the aircraft actually gets some benefit from the forward motion of the treadmill. However, it is not enough to have the plane magically launch of the treadmill without sufficient ground speed.

Agree?

You're not explaining yourself well at all. All that is required for flight is for a sufficient amount of air to be moving over the control surfaces of the aircraft. Ground speed is irrelevant.

[Buck]

Originally Posted by Brock

You're not explaining yourself well at all. All that is required for flight is for a sufficient amount of air to be moving over the control surfaces of the aircraft. Ground speed is irrelevant.

But how can there be airflow over the wings, if the airplane is not moving compared to the ground?

[Brock]

Originally Posted by BuckinKaeding

But how can there be airflow over the wings, if the airplane is not moving compared to the ground?

It wouldn't. But theoretically if the air was moving across the control surfaces, as in a wind tunnel, flight would be achieved. The propeller alone would not supply enough air movement.

[Donger]

Originally Posted by Brock

It wouldn't. But theoretically if the air was moving across the control surfaces, as in a wind tunnel, flight would be achieved. The propeller alone would not supply enough air movement.

It's the same reason aircraft carriers turn into the wind to launch aircraft. Less relative speed of the aircraft is required in order to achieve lift.

[Donger]

Originally Posted by Brock

You're not explaining yourself well at all. All that is required for flight is for a sufficient amount of air to be moving over the control surfaces of the aircraft. Ground speed is irrelevant.

I've already stated that. Re-read. Anyway, we are discussing a plane on the ground, so barring a really big gust of wind, the ground speed is rather relevant.

[Brock]

Originally Posted by Donger

I've already stated that. Re-read.

It's not really interesting enough to do that.

[seclark]

Originally Posted by Brock

It's not really interesting enough to do that.

this is why i wanna have dinner with this guy!
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