ملخ کوچک 1 میلی متر ویژه کوادکوپترهای نانو و مینی - ست 4 عددی

Description:

A propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral, that when rotated performs an action that is similar to Archimedes' screw. It transforms rotational power into a linear thrust by acting upon a working fluid such as water or air. The rotational motion of the blades is converted into thrust by creating a pressure difference between the two surfaces. A given mass of working fluid is accelerated in one direction and the craft moves in the opposite direction.

In order for a quadcopter to rise into the air, a force must be created, which equals or exceeds the force of gravity. This is the basic idea behind aircraft lift, which comes down to controlling the upward and downward force.

Now, quadcopters use motor design and propeller direction for propulsion to basically control the force of gravity against the quadcopter.

The spinning of the quadcopter propeller blades pushes air down. All forces come in pairs (Newtons Third Law), which means for every action force there is an equal (in size) and opposite (in direction) reaction force. Therefore, as the rotor pushes down on the air, the air pushes up on the rotor. The faster the rotors spin, the greater the lift and vice-versa.

Now, a drone can do three things in the vertical plane: hover, climb or descend.

Quadcopter propellers come in a huge variety of materials, dimensions, and prices from the bottom to top of the range. Generally, cheaper props are less precisely manufactured and more prone to creating vibration.

This applies especially to the relatively larger end of the prop spectrum, with differences becoming less perceptible for smaller craft. If you are flying a quadcopter with the intention of producing top aerial photos or film, then it is worth spending money on top quality propellers. Also, use a quality Prop Balancer to check your quadcopter propellers every few flights.

Features:

Blade length: 55mm

Suitable for motors with shaft diameter: 1mm