What about a wind tunnel?

[JayPowHound]

I believe it's been established that a plane may or may not take off from a treadmill.

What if it was in a wind tunnel? Could it hover?

[rod9301]

I believe it's been established that a plane may or may not take off from a treadmill.

What if it was in a wind tunnel? Could it hover?

Yes. And why wouldn't the plane take off from a treadmill?

It can take off on ice.

But maybe because a treadmill large enough would be impractical, nobody would be interested in building it, etc

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[mcski]

FFS

[hutash]

That question is way to easy to answer, so the real question would be, will a plane take off on a treadmill in a wind tunnel?

[abraham]

I once visited a wind tunnel with a treadmill set up for testing effects near the ground as the plane came in to land. A treadmill is the easiest way to simulate a moving (relative to the plane) runway in a controlled environment like that. The one I saw hovered but it was just a full scale landing gear assembly.

The rest of the plane probably took off without it

[iceman]

FFS

Right?

[toast2266]

That question is way to easy to answer, so the real question would be, will a plane take off on a treadmill in a wind tunnel?

But what if the wind tunnel was on a treadmill?

[insert mind blown emoji]

[Ted Striker]

define hover.

[PNWbrit]

define hover.

In the manner of an overbearing parent.

There was a thread about this.

[cmcrawfo]

Is the plane full or Solomon or G3 fanboys? Because that will drastically change the results.

[Supermoon]

Is the plane full or Solomon or G3 fanboys? Because that will drastically change the results.

All the hot air in the plane will give it additional lift. Maybe not even needing a wind tunnel at all.

[stuckathuntermtn]

It's all about the KTA: Knots True Airspeed.
If the airflow over the wing/lifting body is fast enough, the plane goes up.
That why they tie planes down when they park them outside. Especially the small ones. A stiff breeze would fuck up your dad's 172 if it was unsecured.

[DJSapp]

What color is the airplane? If it is red, it will go faster and take off sooner.

[PNWbrit]

It's all about the KTA: Knots True Airspeed.
If the airflow over the wing/lifting body is fast enough, the plane goes up.
That why they tie planes down when they park them outside. Especially the small ones. A stiff breeze would fuck up your dad's 172 if it was unsecured.

FFS

[KyleLanTheman]

If a helicopter is in a large closed box on a scale, would the scale read less or the same when the helicopter takes off?

[cmcrawfo]

If a helicopter is in a large closed box on a scale, would the scale read less or the same when the helicopter takes off?

The scale will read both values at the same time, until we open the box.

[Supermoon]

If a helicopter is in a large closed box on a scale, would the scale read less or the same when the helicopter takes off?

Less, but not by much. Some of the force would go into compressing the air, and not all of it would become ground force.

[stuckathuntermtn]

FFS

Sorry, I should have said make sure the plane is red.
Can you imagine if the SR-71 was red? It would melt your face.

[KyleLanTheman]

The scale will read both values at the same time, until we open the box.

Wouldn't we have to sacrifice a cat though? I guess the answer is yes AND no

[cmcrawfo]

Less, but not by much. Some of the force would go into compressing the air, and not all of it would become ground force.

But How do we even know the helicopter is still in the box?

[PNWbrit]

we

Huh?

[KyleLanTheman]

Huh?

Me & you booboo

[PNWbrit]

Jong Date 11-15-2018

slow down sparky

[KyleLanTheman]

K dad

[mcski]

Gywnneth is the cats name