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Learn to fly quadcopter drones

You would be hearing a lot about drones recently. These UAV's are becoming quite common in today's world. And as they get more popular, they are becoming much easier to purchase as well. But with the huge range of brands and models available, it may become a little difficult for you to figure out which quadcopter you should start out with. There are a lot of different variations of the quadcopter family which you could consider. The most common one certainly is the DJI Phantom. Quadcopters basically use 4 motors along with propellers in order to generate the necessary thrust for lifting the aircraft. It can be a lot simpler mechanically as compared to regular helicopters which need tail rotors for counteracting angular torque that is produced using the main rotor. The main rotor doesn't require a collective pitch or any other mechanical complexities here. With quadcopters, pitch is fixed & flight control is only achieved because the motor RPM is changed actively.

 

If you wish to move in front then the two motors at the back spin quicker and the motors in front spin slower. This shifts the quadcopter slightly forward and the thrust is in this direction. If you're looking at rolling then this principle applies as well but on lateral sides. If you're looking at yawing, then angular torque needs to be understood. Spinning objects produce torque which is proportional to the speed at which it spins. This is why regular helicopters have main and tail rotors. When the main rotors spins counter clockwise, the whole helicopter will want to spin in the opposite direction to preserve the angular momentum. This is where the tail rotor comes into the picture. It produces the required thrust to counteract this force.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

But for quadcopters, the motors are all configured in a way that they cancel each other out. So when you are trying to yaw, to motors diagonally across from each other will reduce speed & the other two will pick up speed. This will ensure lift is maintained while the quadcopter is turning. It may not be possible for humans to calculate how much the torque needs to be changed to do these things and that is what the onboard computer does. The board usually has pyrometers and sometimes it also has accelerometers.

 

All of this may sound quite a bit complicated but the fact of the matter is that they are very easy to fly once you get the hang of it. So what are you waiting for? Go online and buy a quadcopter today.

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