I get that the spinny fan like pulls it up but like how does it spin because if I theoretically have a massive fan that spun at extreme speeds will my house fly?
Plus why do helicopters need spinny things when literally every other thing that flies just has wings and an engine. Also if the fan spins why does it spinning pull it up like when it’s on the ground it stays still but when it’s in the sky u can like manoeuvre it 360 like what.
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The blades are shaped in a way that pushes air down. The blades are spun by the engine.
There are helicopters that have multiple huge blades and are used for transport. It depends how big your house is as to whether it could fly with a big enough blade, but probably not.
The way they move is the base of the blade pivots so the blades push the air in the desired direction. During takeoff they push the air straight down to allow the helicopter to rise.
Like when it’s on the ground you can spin the fan and it won’t go anywhere but then when ur in the air u have a stick that can move to go anywhere
Like when it’s on the ground you can spin the fan and it won’t go anywhere but then when ur in the air u have a stick that can move to go anywhere
Helicopters use rotors to fly .The rotors create lift by making a low-pressure area above them and a high-pressure area below them, and this difference in pressure keeps the helicopter in the air. By changing the angle of the rotor blades, the helicopter can change how much lift it generates, allowing it to move up and down or stay in one place.
But, unfortunately, just having a massive fan spinning really fast won’t be enough to lift something as heavy as a house. To generate lift, you need something like a helicopter rotor or an airplane wing that’s specifically designed to create a difference in air pressure and lift objects off the ground. The rotor blades on a helicopter are specially shaped to create lift as they spin, and they can be adjusted to change how much lift they generate.
Helicopters use rotors instead of wings because they need to be able to take off and land vertically, and hover in one place. Wings are great for staying in the air, but they need forward motion to work properly.
Helicopters use rotors to fly .The rotors create lift by making a low-pressure area above them and a high-pressure area below them, and this difference in pressure keeps the helicopter in the air. By changing the angle of the rotor blades, the helicopter can change how much lift it generates, allowing it to move up and down or stay in one place.
But, unfortunately, just having a massive fan spinning really fast won’t be enough to lift something as heavy as a house. To generate lift, you need something like a helicopter rotor or an airplane wing that’s specifically designed to create a difference in air pressure and lift objects off the ground. The rotor blades on a helicopter are specially shaped to create lift as they spin, and they can be adjusted to change how much lift they generate.
Helicopters use rotors instead of wings because they need to be able to take off and land vertically, and hover in one place. Wings are great for staying in the air, but they need forward motion to work properly.
The rotor works basically like a boat’s propeller, except pointing upwards. The blades are angled, so they’re essentially constantly corkscrewing upwards to lift the helicopter up.
You could of course make anything fly with that, providing you have enough power and tensile strength.
As for the reason, a constant upwards lift gives them better maneuverability. They are mechanically much more complicated than planes are, but a plane also needs to move forward for the wings to generate lift, so it can’t hover around a spot or take off vertically. If you’re, say, trying to lift an injured hiker off the face of a cliff, you really do not want to try doing that with a plane and a close flyby.
The rotor gives it upwards lift, but since it’s rotating, it’s also constantly twisting the helicopter around with it. With no counteracting force, it would just spin wildly along with the rotor, so you need some solution to avoid that. The classic one is to just stick a smaller, vertical rotor on the tail to push against the rotation. Then if you want to turn left or right (also called yaw) you just make that small rotor spin faster or slower, but most of the time you want it perfectly counteracting the twisting force so that the helicopter stays still.
>how does it spin
It’s attached to a powerful engine
>if I theoretically have a massive fan that spun at extreme speeds will my house fly?
Yes
>Plus why do helicopters need spinny things when literally every other thing that flies just has wings and an engine
Because Helicopters and Planes are good for different things. Planes can’t hover in place, and need massive runways
>Also if the fan spins why does it spinning pull it up
A rotor is like a wing. The rotor moves through the air fast because it’s spinning, and that creates lift pulling upwards
>like when it’s on the ground it stays still but when it’s in the sky u can like manoeuvre it 360 like what.
Can you elaborate on what you mean by this ?
Helicopters fly basically the same way planes do. Helicopter blades are shaped very similar to airplane wings. Air moving across the shape creates lift. An airplane gets air moving across the wings by moving forwards. A helicopter gets air moving across the blades by spinning them through the air.
The blades are shaped in a way that pushes air down. The blades are spun by the engine.
There are helicopters that have multiple huge blades and are used for transport. It depends how big your house is as to whether it could fly with a big enough blade, but probably not.
The way they move is the base of the blade pivots so the blades push the air in the desired direction. During takeoff they push the air straight down to allow the helicopter to rise.
The rotor works basically like a boat’s propeller, except pointing upwards. The blades are angled, so they’re essentially constantly corkscrewing upwards to lift the helicopter up.
You could of course make anything fly with that, providing you have enough power and tensile strength.
As for the reason, a constant upwards lift gives them better maneuverability. They are mechanically much more complicated than planes are, but a plane also needs to move forward for the wings to generate lift, so it can’t hover around a spot or take off vertically. If you’re, say, trying to lift an injured hiker off the face of a cliff, you really do not want to try doing that with a plane and a close flyby.
The rotor gives it upwards lift, but since it’s rotating, it’s also constantly twisting the helicopter around with it. With no counteracting force, it would just spin wildly along with the rotor, so you need some solution to avoid that. The classic one is to just stick a smaller, vertical rotor on the tail to push against the rotation. Then if you want to turn left or right (also called yaw) you just make that small rotor spin faster or slower, but most of the time you want it perfectly counteracting the twisting force so that the helicopter stays still.
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