What makes the quadcopter design so great for small drones?
You’ve seen the traditional helicopter with its main blade propeller on top and smaller tail rotor. You may have even seen a copter with six dizzying blades. But then some copters have four propellers arranged in a neat square. So, what difference does it make?
Well, the quadcopter’s simple model and optimum amount of control actually makes a great design for small drones.
Each quadcopter is designed with four identical propellers (hence the name) that can rotate horizontally in either a clockwise or counterclockwise direction. By adjusting the thrust as well as which direction each propeller rotates, you gain optimum control of the drone. You can dictate its altitude, the amount of pitch and roll, and which direction it takes. This allows for smoother flight and hovering capabilities.
For example, you can easily adjust the direct vertical altitude of the drone by first applying equal thrust to all of the propellers on the drone. At the same time, you would spin two propellers at opposite corners from each other in a clockwise direction while also spinning the remaining two propellers in the other direction. With incredibly precise accuracy, you would vertically lift the drone to whatever altitude you wished.
These smaller quadcopter drones can also fit into tighter spaces while still giving you the absolute control you need to take a hard-to-get photo shot. Whether you need to get a shot between close-together trees or else you need to navigate under a bridge, a quadcopter will have few difficulties.
And, in fact, the quadcopter models are actually frequently preferred by novices because of their safe maneuverability.
Last Christmas, my mom thought it would be a good idea to get my dad a very small, very cheap, two-propeller copter that he could fly around the house. Although he had never flown one before, my dad was thrilled. And, for the next two hours, the drone rammed into the doors, the walls, my mom’s precious baby grand piano, and basically any other physical object within its reach. We were constantly dodging out of the way of its little propellers. Though it was small enough to not cause any real damage, by the end of the night, the copter looked like it might not see another flight.
With more expensive drones, you don’t want to invest only to have it break on the first flight. Luckily, the quadcopter design allows small drones to be safely flown indoors as well as outdoors. This is partly because the four small rotors together reduce the amount of kinetic energy that each propeller has while flying. With less kinetic energy comes less damage to the drone and its surroundings when these little guys crash into anything. Some quadcopters are also equipped with barriers around the propellers to reduce damage even further so you don’t have to worry as much about your limited flying experience.
With the amount of control you have over the small quadcopter drones, as well as their added safety, you could even take the small drones out into more challenging conditions like moderate winds or tight outdoor quarters.
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