Hello, I would like to know if anyone has tutorials, any post in the forum or example code to know how to create helicopters, if you could share it, please. I would appreciate it 
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Aerodynamics is the main thing you should learn before you make a helicopter
Wikipedia: Aerodynamics - Wikipedia
“Helicopters are able to fly due to aerodynamic forces produced when air passes around the airfoil. An airfoil is any surface producing more lift than drag when passing through the air at a suitable angle. … Airfoils are also used for stability (fin), control (elevator), and thrust or propulsion (propeller or rotor).”
The 4 main points
" A helicopter has four controls : collective pitch control , throttle control , anti torque control , and cyclic pitch control . The collective pitch control is usually found at the pilot’s left hand; it is a lever that moves up and down to change the pitch angle of the main rotor blades."
The Bernoulli Principle
“The Bernoulli Principle is a foundational principle of aerodynamics . Aerodynamics involves a combination of four different forces: lift, weight, drag, and thrust. Lift is the opposite force of weight, and it occurs as air moves on wings.”
Example
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The main thing with helicopters is setting the primary part. You want this to be below the centre point of lift the reason it isn’t always right in the middle and you could have multiple points of lift like cargo carriers or quad copters.
From this central point you will manipulate the helicopter. For taking off or flying up this increases the upwards force. Then helicopters move by tilting to cause the direction of lift to change slightly resulting in a diagonal force that is up and to whichever side it is tipping towards.
Rotating sideways is usually done through a smaller propeller or by offsetting the angle of multiple rotors. For example a quadcopter has no rear propeller only 4 rotors, these can tilt individually by a small amount which means that in order to turn the front will be offset in one direction and the rear will offset in the opposite direction to force it to turn.
You can use physics to do this or you could manually manipulate it with CFrames. CFrames tend to be easier but they do have their downsides when interacting with other parts for example when you move a part with CFrame sometimes .touched wont fire if its a anchored object.
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