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Does a plane achieve lift by pushing a wing through the air or by pulling air over a wing?
Posted on 4/11/24 at 8:12 am
Posted on 4/11/24 at 8:12 am
That's the question that needs to be answered on the conveyor belt conundrum.
If the engines can PULL enough wind over the wings surface it will achieve lift even without the plane appearing to move forward to a bystander viewing.
If the engines can PULL enough wind over the wings surface it will achieve lift even without the plane appearing to move forward to a bystander viewing.
13
Posted on 4/11/24 at 8:13 am to sidewalkside
a missile is a wingless plane.
Posted on 4/11/24 at 8:14 am to sidewalkside
So what a few dozen shop vacs mounted on the wing to pull air over the top? Sounds about right.
Posted on 4/11/24 at 8:15 am to sidewalkside
You can’t pull a fluid
Posted on 4/11/24 at 8:15 am to sidewalkside
Planes generate enough force through their engines/propellers that it causes the plane to move forward. The act of moving the aero foil through the air results in lower pressure on top of the wing, resulting in lift.
Posted on 4/11/24 at 8:16 am to Chad504boy
No it's not. The body of the missile is effectively the "wing" and there actually are little wings on missiles
Posted on 4/11/24 at 8:16 am to sidewalkside
You get anything with wings going fast enough, it will lift off the ground
The speed of the object wanting fly and the surface area of resistance is pretty much it.
Once it’s in the air, that’s a whole other ballgame
The speed of the object wanting fly and the surface area of resistance is pretty much it.
Once it’s in the air, that’s a whole other ballgame
Posted on 4/11/24 at 8:16 am to sidewalkside
quote:
That's the question that needs to be answered on the conveyor belt conundrum.
No it doesn’t
quote:
If the engines can PULL enough wind over the wings surface it will achieve lift even without the plane appearing to move forward to a bystander viewing.
They can’t. The closest thing is a bush plane taking off into a headwind.
None of that matters because the plane will still accelerate forward due to the thrust of its engines. Equal and opposite reaction.
Posted on 4/11/24 at 8:16 am to sidewalkside
quote:
If the engines can PULL enough wind over the wings surface it will achieve lift even without the plane appearing to move forward to a bystander viewing.
A jet engine produces thrust, it does not pull air under(not over) the wing to create lift.
Posted on 4/11/24 at 8:17 am to sidewalkside
They did this on mythbusters a while back. The planes wheels dont "drive" theyre free rolling so the fact the ground is moving backwards in relation to the thrust only means the wheels would spin faster than the plane is travelling. kind of like small planes at an airfield are strapped down because a wind gust will pick them up regardless of if theyre moving or not.
Posted on 4/11/24 at 8:18 am to Chad504boy
quote:
a missile is a wingless plane.
I’m glad we have rocket scientists weighing in on this
Posted on 4/11/24 at 8:18 am to Chad504boy
quote:
Does a plane achieve lift by pushing a wing through the air or by pulling air over a wing?
quote:I love lamp.
a missile is a wingless plane.
Posted on 4/11/24 at 8:18 am to sidewalkside
Keep this in the other thread.
Posted on 4/11/24 at 8:18 am to sidewalkside
quote:
No it's not. The body of the missile is effectively the "wing" and there actually are little wings on missiles
The body of most missiles are not lifting bodies. The winglets you see on most of them are for guidance, not lift. A missile generally doesn’t need to generate much if any lift. They gain altitude through thrust alone.
Posted on 4/11/24 at 8:19 am to Power-Dome
quote:
can’t pull a fluid
Tell that to stalekracker.
Posted on 4/11/24 at 8:20 am to rmnldr
quote:
The body of most missiles are not lifting bodies. The winglets you see on most of them are for guidance, not lift. A missile generally doesn’t need to generate much if any lift. They gain altitude through thrust alone.
A missile is an aimed rocket. Lift is not generated, thrust is used to propel the missile and the fins used to direct the missile.
Posted on 4/11/24 at 8:20 am to sidewalkside
Ggoogle airfoil
Posted on 4/11/24 at 8:20 am to sidewalkside
Don't they test flying things out in wind tunnels?
Oh! If you hooked a giant wind tunnel around the plane it could fly anywhere with no engines, right!?
Oh! If you hooked a giant wind tunnel around the plane it could fly anywhere with no engines, right!?
Posted on 4/11/24 at 8:21 am to Oilfieldbiology
quote:
A missile is an aimed rocket. Lift is not generated, thrust is used to propel the missile and the fins used to direct the missile.
That’s what I just said.
I left room to include cruise missiles into that equation though and other gliding missiles.
Posted on 4/11/24 at 8:21 am to fr33manator
quote:
Oh! If you hooked a giant wind tunnel around the plane it could fly anywhere with no engines, right!?
Ok Liberator.
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